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Diff for /imach/src/imach.c between versions 1.265 and 1.273

-version 1.265, 2017/04/26 16:22:11
+version 1.273, 2017/06/27 11:06:02
  Line 1
  /* $Id$
    $State$
    $Log$
+   Revision 1.273  2017/06/27 11:06:02  brouard
+   Summary: More documentation on projections
+   Revision 1.272  2017/06/27 10:22:40  brouard
+   Summary: Color of backprojection changed from 6 to 5(yellow)
+   Revision 1.271  2017/06/27 10:17:50  brouard
+   Summary: Some bug with rint
+   Revision 1.270  2017/05/24 05:45:29  brouard
+   *** empty log message ***
+   Revision 1.269  2017/05/23 08:39:25  brouard
+   Summary: Code into subroutine, cleanings
+   Revision 1.268  2017/05/18 20:09:32  brouard
+   Summary: backprojection and confidence intervals of backprevalence
+   Revision 1.267  2017/05/13 10:25:05  brouard
+   Summary: temporary save for backprojection
+   Revision 1.266  2017/05/13 07:26:12  brouard
+   Summary: Version 0.99r13 (improvements and bugs fixed)
    Revision 1.265  2017/04/26 16:22:11  brouard
    Summary: imach 0.99r13 Some bugs fixed
- Line 815  Back prevalence and projections:
+ Line 839  Back prevalence and projections:
     p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
                          oldm=oldms;savm=savms;
-    - hbxij(p3mat,nhstepm,agedeb,hstepm,p,nlstate,stepm,oldm,savm, k);
+    - hbxij(p3mat,nhstepm,agedeb,hstepm,p,nlstate,stepm,oldm,savm, k, nres);
       Computes the transition matrix starting at age 'age' over
       'nhstepm*hstepm*stepm' months (i.e. until
       age (in years)  age+nhstepm*hstepm*stepm/12) by multiplying
- Line 983  typedef struct {
+ Line 1007  typedef struct {
  #define YEARM 12. /**< Number of months per year */
  /* #define AGESUP 130 */
  #define AGESUP 150
+ #define AGEINF 0
  #define AGEMARGE 25 /* Marge for agemin and agemax for(iage=agemin-AGEMARGE; iage <= agemax+3+AGEMARGE; iage++) */
  #define AGEBASE 40
  #define AGEOVERFLOW 1.e20
- Line 1074  FILE *ficrescveij;
+ Line 1099  FILE *ficrescveij;
  char filerescve[FILENAMELENGTH];
  FILE  *ficresvij;
  char fileresv[FILENAMELENGTH];
- FILE  *ficresvpl;
- char fileresvpl[FILENAMELENGTH];
  char title[MAXLINE];
  char model[MAXLINE]; /**< The model line */
  char optionfile[FILENAMELENGTH], datafile[FILENAMELENGTH],  filerespl[FILENAMELENGTH],  fileresplb[FILENAMELENGTH];
- Line 1173  double *agedc;
+ Line 1197  double *agedc;
  double  **covar; /**< covar[j,i], value of jth covariate for individual i,
                    * covar=matrix(0,NCOVMAX,1,n);
                    * cov[Tage[kk]+2]=covar[Tvar[Tage[kk]]][i]*age; */
- double **coqvar; /* Fixed quantitative covariate iqv */
+ double **coqvar; /* Fixed quantitative covariate nqv */
- double ***cotvar; /* Time varying covariate itv */
+ double ***cotvar; /* Time varying covariate ntv */
  double ***cotqvar; /* Time varying quantitative covariate itqv */
  double  idx;
  int **nbcode, *Tvar; /**< model=V2 => Tvar[1]= 2 */
- Line 2657  Earliest age to start was %d-%d=%d, ncvl
+ Line 2681  Earliest age to start was %d-%d=%d, ncvl
    max=vector(1,nlstate);
    meandiff=vector(1,nlstate);
-         dnewm=ddnewms; doldm=ddoldms; dsavm=ddsavms;
+   dnewm=ddnewms; doldm=ddoldms; dsavm=ddsavms;
-         oldm=oldms; savm=savms;
+   oldm=oldms; savm=savms;
-         /* Starting with matrix unity */
+   /* Starting with matrix unity */
-         for (ii=1;ii<=nlstate+ndeath;ii++)
+   for (ii=1;ii<=nlstate+ndeath;ii++)
-                 for (j=1;j<=nlstate+ndeath;j++){
+     for (j=1;j<=nlstate+ndeath;j++){
        oldm[ii][j]=(ii==j ? 1.0 : 0.0);
      }
- Line 2736  Earliest age to start was %d-%d=%d, ncvl
+ Line 2760  Earliest age to start was %d-%d=%d, ncvl
      /* out=matprod2(newm,oldm,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, bmij(pmmij,cov,ncovmodel,x,nlstate,prevacurrent, ageminpar, agemaxpar, dnewm, doldm, dsavm,ij)); /\* Bug Valgrind *\/ */
      /* out=matprod2(newm,oldm,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, bmij(pmmij,cov,ncovmodel,x,nlstate,prevacurrent, dnewm, doldm, dsavm,ij)); /\* Bug Valgrind *\/ */
      out=matprod2(newm,oldm,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, bmij(pmmij,cov,ncovmodel,x,nlstate,prevacurrent,ij)); /* Bug Valgrind */
+     /* if((int)age == 86 || (int)age == 87){ */
+     /*   printf(" Backward prevalim age=%d agefin=%d \n", (int) age, (int) agefin); */
+     /*   for(i=1; i<=nlstate+ndeath; i++) { */
+     /*  printf("%d newm= ",i); */
+     /*  for(j=1;j<=nlstate+ndeath;j++) { */
+     /*    printf("%f ",newm[i][j]); */
+     /*  } */
+     /*  printf("oldm * "); */
+     /*  for(j=1;j<=nlstate+ndeath;j++) { */
+     /*    printf("%f ",oldm[i][j]); */
+     /*  } */
+     /*  printf(" bmmij "); */
+     /*  for(j=1;j<=nlstate+ndeath;j++) { */
+     /*    printf("%f ",pmmij[i][j]); */
+     /*  } */
+     /*  printf("\n"); */
+     /*   } */
+     /* } */
      savm=oldm;
      oldm=newm;
      for(j=1; j<=nlstate; j++){
        max[j]=0.;
        min[j]=1.;
- Line 2756  Earliest age to start was %d-%d=%d, ncvl
+ Line 2799  Earliest age to start was %d-%d=%d, ncvl
        meandiff[i]=(max[i]-min[i])/(max[i]+min[i])*2.; /* mean difference for each column */
        maxmax=FMAX(maxmax,meandiff[i]);
        /* printf("Back age= %d meandiff[%d]=%f, agefin=%d max[%d]=%f min[%d]=%f maxmax=%f\n", (int)age, i, meandiff[i],(int)agefin, i, max[i], i, min[i],maxmax); */
-     } /* j loop */
+     } /* i loop */
      *ncvyear= -( (int)age- (int)agefin);
-     /* printf("Back maxmax=%lf ncvloop=%d, age=%d, agefin=%d ncvyear=%d \n", maxmax, ncvloop, (int)age, (int)agefin, *ncvyear);*/
+     /* printf("Back maxmax=%lf ncvloop=%d, age=%d, agefin=%d ncvyear=%d \n", maxmax, ncvloop, (int)age, (int)agefin, *ncvyear); */
      if(maxmax < ftolpl){
        /* printf("OK Back maxmax=%lf ncvloop=%d, age=%d, agefin=%d ncvyear=%d \n", maxmax, ncvloop, (int)age, (int)agefin, *ncvyear); */
        free_vector(min,1,nlstate);
- Line 2788  Oldest age to start was %d-%d=%d, ncvloo
+ Line 2831  Oldest age to start was %d-%d=%d, ncvloo
  double **pmij(double **ps, double *cov, int ncovmodel, double *x, int nlstate )
  {
    /* According to parameters values stored in x and the covariate's values stored in cov,
-      computes the probability to be observed in state j being in state i by appying the
+      computes the probability to be observed in state j (after stepm years) being in state i by appying the
       model to the ncovmodel covariates (including constant and age).
       lnpijopii=ln(pij/pii)= aij+bij*age+cij*v1+dij*v2+... = sum_nc=1^ncovmodel xij(nc)*cov[nc]
       and, according on how parameters are entered, the position of the coefficient xij(nc) of the
- Line 2797  double **pmij(double **ps, double *cov,
+ Line 2840  double **pmij(double **ps, double *cov,
       j>=i nc + ((i-1)*(nlstate+ndeath-1)+(j-2))*ncovmodel
       Computes ln(pij/pii) (lnpijopii), deduces pij/pii by exponentiation,
       sums on j different of i to get 1-pii/pii, deduces pii, and then all pij.
-      Outputs ps[i][j] the probability to be observed in j being in j according to
+      Outputs ps[i][j] or probability to be observed in j being in i according to
       the values of the covariates cov[nc] and corresponding parameter values x[nc+shiftij]
+      Sum on j ps[i][j] should equal to 1.
    */
    double s1, lnpijopii;
    /*double t34;*/
- Line 2862  double **pmij(double **ps, double *cov,
+ Line 2906  double **pmij(double **ps, double *cov,
    /*
      for(i=1; i<= npar; i++) printf("%f ",x[i]);
                  goto end;*/
-   return ps;
+   return ps; /* Pointer is unchanged since its call */
  }
  /*************** backward transition probabilities ***************/
- Line 2871  double **pmij(double **ps, double *cov,
+ Line 2915  double **pmij(double **ps, double *cov,
  /* double **bmij(double **ps, double *cov, int ncovmodel, double *x, int nlstate,  double ***prevacurrent, double ***dnewm, double **doldm, double **dsavm, int ij ) */
   double **bmij(double **ps, double *cov, int ncovmodel, double *x, int nlstate,  double ***prevacurrent, int ij )
  {
-   /* Computes the backward probability at age agefin and covariate ij
+   /* Computes the backward probability at age agefin and covariate combination ij. In fact cov is already filled and x too.
-    * and returns in **ps as well as **bmij.
+    * Call to pmij(cov and x), call to cross prevalence, sums and inverses, left multiply, and returns in **ps as well as **bmij.
     */
    int i, ii, j,k;
    double **out, **pmij();
    double sumnew=0.;
    double agefin;
+   double k3=0.; /* constant of the w_x diagonal matrixe (in order for B to sum to 1 even for death state) */
    double **dnewm, **dsavm, **doldm;
    double **bbmij;
- Line 2888  double **pmij(double **ps, double *cov,
+ Line 2932  double **pmij(double **ps, double *cov,
    dsavm=ddsavms;
    agefin=cov[2];
+   /* Bx = Diag(w_x) P_x Diag(Sum_i w^i_x p^ij_x */
    /* bmij *//* age is cov[2], ij is included in cov, but we need for
-      the observed prevalence (with this covariate ij) */
+      the observed prevalence (with this covariate ij) at beginning of transition */
-   dsavm=pmij(pmmij,cov,ncovmodel,x,nlstate);
+   /* dsavm=pmij(pmmij,cov,ncovmodel,x,nlstate); */
-   /* We do have the matrix Px in savm  and we need pij */
+   /* P_x */
+   pmmij=pmij(pmmij,cov,ncovmodel,x,nlstate); /*This is forward probability from agefin to agefin + stepm */
+   /* outputs pmmij which is a stochastic matrix in row */
+   /* Diag(w_x) */
+   /* Problem with prevacurrent which can be zero */
+   sumnew=0.;
+   /*for (ii=1;ii<=nlstate+ndeath;ii++){*/
+   for (ii=1;ii<=nlstate;ii++){ /* Only on live states */
+     /* printf(" agefin=%d, ii=%d, ij=%d, prev=%f\n",(int)agefin,ii, ij, prevacurrent[(int)agefin][ii][ij]);  */
+     sumnew+=prevacurrent[(int)agefin][ii][ij];
+   }
+   if(sumnew >0.01){  /* At least some value in the prevalence */
+     for (ii=1;ii<=nlstate+ndeath;ii++){
+       for (j=1;j<=nlstate+ndeath;j++)
+         doldm[ii][j]=(ii==j ? prevacurrent[(int)agefin][ii][ij]/sumnew : 0.0);
+     }
+   }else{
+     for (ii=1;ii<=nlstate+ndeath;ii++){
+       for (j=1;j<=nlstate+ndeath;j++)
+       doldm[ii][j]=(ii==j ? 1./nlstate : 0.0);
+     }
+     /* if(sumnew <0.9){ */
+     /*   printf("Problem internal bmij B: sum on i wi <0.9: j=%d, sum_i wi=%lf,agefin=%d\n",j,sumnew, (int)agefin); */
+     /* } */
+   }
+   k3=0.0;  /* We put the last diagonal to 0 */
+   for (ii=nlstate+1;ii<=nlstate+ndeath;ii++){
+       doldm[ii][ii]= k3;
+   }
+   /* End doldm, At the end doldm is diag[(w_i)] */
+   /* left Product of this diag matrix by pmmij=Px (dnewm=dsavm*doldm) */
+   bbmij=matprod2(dnewm, doldm,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, pmmij); /* Bug Valgrind */
+   /* Diag(Sum_i w^i_x p^ij_x */
+   /* w1 p11 + w2 p21 only on live states N1./N..*N11/N1. + N2./N..*N21/N2.=(N11+N21)/N..=N.1/N.. */
    for (j=1;j<=nlstate+ndeath;j++){
-     sumnew=0.; /* w1 p11 + w2 p21 only on live states */
+     sumnew=0.;
      for (ii=1;ii<=nlstate;ii++){
-       sumnew+=dsavm[ii][j]*prevacurrent[(int)agefin][ii][ij];
+       /* sumnew+=dsavm[ii][j]*prevacurrent[(int)agefin][ii][ij]; */
+       sumnew+=pmmij[ii][j]*doldm[ii][ii]; /* Yes prevalence at beginning of transition */
      } /* sumnew is (N11+N21)/N..= N.1/N.. = sum on i of w_i pij */
      for (ii=1;ii<=nlstate+ndeath;ii++){
-       if(sumnew >= 1.e-10){
          /* if(agefin >= agemaxpar && agefin <= agemaxpar+stepm/YEARM){ */
-         /*      doldm[ii][j]=(ii==j ? 1./sumnew : 0.0); */
+         /*      dsavm[ii][j]=(ii==j ? 1./sumnew : 0.0); */
          /* }else if(agefin >= agemaxpar+stepm/YEARM){ */
-         /*      doldm[ii][j]=(ii==j ? 1./sumnew : 0.0); */
+         /*      dsavm[ii][j]=(ii==j ? 1./sumnew : 0.0); */
          /* }else */
-         doldm[ii][j]=(ii==j ? 1./sumnew : 0.0);
+       dsavm[ii][j]=(ii==j ? 1./sumnew : 0.0);
-       }else{
-         ;
-         /* printf("ii=%d, i=%d, doldm=%lf dsavm=%lf, probs=%lf, sumnew=%lf,agefin=%d\n",ii,j,doldm[ii][j],dsavm[ii][j],prevacurrent[(int)agefin][ii][ij],sumnew, (int)agefin); */
-       }
      } /*End ii */
-   } /* End j, At the end doldm is diag[1/(w_1p1i+w_2 p2i)] */
+   } /* End j, At the end dsavm is diag[1/(w_1p1i+w_2 p2i)] for ALL states even if the sum is only for live states */
-   /* left Product of this diag matrix by dsavm=Px (newm=dsavm*doldm) */
-   bbmij=matprod2(dnewm, dsavm,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, doldm); /* Bug Valgrind */
+   ps=matprod2(ps, dnewm,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, dsavm); /* Bug Valgrind */
-   /* dsavm=doldm; /\* dsavm is now diag [1/(w_1p1i+w_2 p2i)] but can be overwritten*\/ */
+   /* ps is now diag[w_i] * Px * diag [1/(w_1p1i+w_2 p2i)] */
-   /* doldm=dnewm; /\* doldm is now Px * diag [1/(w_1p1i+w_2 p2i)] *\/ */
-   /* dnewm=dsavm; /\* doldm is now Px * diag [1/(w_1p1i+w_2 p2i)] *\/ */
-   /* left Product of this matrix by diag matrix of prevalences (savm) */
-   for (j=1;j<=nlstate+ndeath;j++){
-     for (ii=1;ii<=nlstate+ndeath;ii++){
-       dsavm[ii][j]=(ii==j ? prevacurrent[(int)agefin][ii][ij] : 0.0);
-     }
-   } /* End j, At the end oldm is diag[1/(w_1p1i+w_2 p2i)] */
-   ps=matprod2(doldm, dsavm,1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, dnewm); /* Bug Valgrind */
-   /* newm or out is now diag[w_i] * Px * diag [1/(w_1p1i+w_2 p2i)] */
    /* end bmij */
-   return ps;
+   return ps; /*pointer is unchanged */
  }
  /*************** transition probabilities ***************/
- Line 3138  double ***hpxij(double ***po, int nhstep
+ Line 3206  double ***hpxij(double ***po, int nhstep
      }
      for(i=1; i<=nlstate+ndeath; i++)
        for(j=1;j<=nlstate+ndeath;j++) {
-                                 po[i][j][h]=newm[i][j];
+         po[i][j][h]=newm[i][j];
-                                 /*if(h==nhstepm) printf("po[%d][%d][%d]=%f ",i,j,h,po[i][j][h]);*/
+         /*if(h==nhstepm) printf("po[%d][%d][%d]=%f ",i,j,h,po[i][j][h]);*/
        }
      /*printf("h=%d ",h);*/
    } /* end h */
-         /*     printf("\n H=%d \n",h); */
+   /*     printf("\n H=%d \n",h); */
    return po;
  }
  /************* Higher Back Matrix Product ***************/
  /* double ***hbxij(double ***po, int nhstepm, double age, int hstepm, double *x, double ***prevacurrent, int nlstate, int stepm, double **oldm, double **savm, double **dnewm, double **doldm, double **dsavm, int ij ) */
- double ***hbxij(double ***po, int nhstepm, double age, int hstepm, double *x, double ***prevacurrent, int nlstate, int stepm, int ij )
+ double ***hbxij(double ***po, int nhstepm, double age, int hstepm, double *x, double ***prevacurrent, int nlstate, int stepm, int ij, int nres )
  {
-   /* Computes the transition matrix starting at age 'age' over
+   /* For a combination of dummy covariate ij, computes the transition matrix starting at age 'age' over
       'nhstepm*hstepm*stepm' months (i.e. until
       age (in years)  age+nhstepm*hstepm*stepm/12) by multiplying
       nhstepm*hstepm matrices.
- Line 3159  double ***hbxij(double ***po, int nhstep
+ Line 3227  double ***hbxij(double ***po, int nhstep
       (typically every 2 years instead of every month which is too big
       for the memory).
       Model is determined by parameters x and covariates have to be
-      included manually here.
+      included manually here. Then we use a call to bmij(x and cov)
+      The addresss of po (p3mat allocated to the dimension of nhstepm) should be stored for output
    */
    int i, j, d, h, k;
-   double **out, cov[NCOVMAX+1];
+   double **out, cov[NCOVMAX+1], **bmij();
-   double **newm;
+   double **newm, ***newmm;
    double agexact;
    double agebegin, ageend;
    double **oldm, **savm;
-   oldm=oldms;savm=savms;
+   newmm=po; /* To be saved */
+   oldm=oldms;savm=savms; /* Global pointers */
    /* Hstepm could be zero and should return the unit matrix */
    for (i=1;i<=nlstate+ndeath;i++)
      for (j=1;j<=nlstate+ndeath;j++){
- Line 3183  double ***hbxij(double ***po, int nhstep
+ Line 3252  double ***hbxij(double ***po, int nhstep
        newm=savm;
        /* Covariates have to be included here again */
        cov[1]=1.;
-       agexact=age-((h-1)*hstepm + (d-1))*stepm/YEARM; /* age just before transition */
+       agexact=age-( (h-1)*hstepm + (d)  )*stepm/YEARM; /* age just before transition, d or d-1? */
        /* agexact=age+((h-1)*hstepm + (d-1))*stepm/YEARM; /\* age just before transition *\/ */
        cov[2]=agexact;
        if(nagesqr==1)
          cov[3]= agexact*agexact;
-       for (k=1; k<=cptcovn;k++)
+       for (k=1; k<=cptcovn;k++){
-         cov[2+nagesqr+k]=nbcode[Tvar[k]][codtabm(ij,k)];
+       /*        cov[2+nagesqr+k]=nbcode[Tvar[k]][codtabm(ij,k)]; */
-       /* cov[2+nagesqr+k]=nbcode[Tvar[k]][codtabm(ij,Tvar[k])]; */
+       /* /\* cov[2+nagesqr+k]=nbcode[Tvar[k]][codtabm(ij,Tvar[k])]; *\/ */
-       for (k=1; k<=cptcovage;k++) /* Should start at cptcovn+1 */
+         cov[2+nagesqr+TvarsDind[k]]=nbcode[TvarsD[k]][codtabm(ij,k)];
-         /* cov[2+Tage[k]]=cov[2+Tage[k]]*cov[2]; */
+         /* printf("hbxij Dummy agexact=%.0f combi=%d k=%d TvarsD[%d]=V%d TvarsDind[%d]=%d nbcode=%d cov[%d]=%lf codtabm(%d,Tvar[%d])=%d \n",agexact,ij,k, k, TvarsD[k],k,TvarsDind[k],nbcode[TvarsD[k]][codtabm(ij,k)],2+nagesqr+TvarsDind[k],cov[2+nagesqr+TvarsDind[k]], ij, k, codtabm(ij,k)); */
-         cov[2+nagesqr+Tage[k]]=nbcode[Tvar[Tage[k]]][codtabm(ij,k)]*cov[2];
+       }
-       /* cov[2+nagesqr+Tage[k]]=nbcode[Tvar[Tage[k]]][codtabm(ij,Tvar[Tage[k]])]*cov[2]; */
+       for (k=1; k<=nsq;k++) { /* For single varying covariates only */
-       for (k=1; k<=cptcovprod;k++) /* Useless because included in cptcovn */
+         /* Here comes the value of quantitative after renumbering k with single quantitative covariates */
+         cov[2+nagesqr+TvarsQind[k]]=Tqresult[nres][k];
+         /* printf("hPxij Quantitative k=%d  TvarsQind[%d]=%d, TvarsQ[%d]=V%d,Tqresult[%d][%d]=%f\n",k,k,TvarsQind[k],k,TvarsQ[k],nres,k,Tqresult[nres][k]); */
+       }
+       for (k=1; k<=cptcovage;k++){ /* Should start at cptcovn+1 */
+         if(Dummy[Tvar[Tage[k]]]){
+           cov[2+nagesqr+Tage[k]]=nbcode[Tvar[Tage[k]]][codtabm(ij,k)]*cov[2];
+         } else{
+           cov[2+nagesqr+Tage[k]]=Tqresult[nres][k];
+         }
+         /* printf("hBxij Age combi=%d k=%d  Tage[%d]=V%d Tqresult[%d][%d]=%f\n",ij,k,k,Tage[k],nres,k,Tqresult[nres][k]); */
+       }
+       for (k=1; k<=cptcovprod;k++){ /* Useless because included in cptcovn */
          cov[2+nagesqr+Tprod[k]]=nbcode[Tvard[k][1]][codtabm(ij,k)]*nbcode[Tvard[k][2]][codtabm(ij,k)];
-       /* cov[2+nagesqr+Tprod[k]]=nbcode[Tvard[k][1]][codtabm(ij,Tvard[k][1])]*nbcode[Tvard[k][2]][codtabm(ij,Tvard[k][2])]; */
+       }
        /*printf("hxi cptcov=%d cptcode=%d\n",cptcov,cptcode);*/
        /*printf("h=%d d=%d age=%f cov=%f\n",h,d,age,cov[2]);*/
        /* Careful transposed matrix */
-       /* age is in cov[2] */
+       /* age is in cov[2], prevacurrent at beginning of transition. */
        /* out=matprod2(newm, bmij(pmmij,cov,ncovmodel,x,nlstate,prevacurrent, dnewm, doldm, dsavm,ij),\ */
        /*                                                 1,nlstate+ndeath,1,nlstate+ndeath,1,nlstate+ndeath, oldm); */
        out=matprod2(newm, bmij(pmmij,cov,ncovmodel,x,nlstate,prevacurrent,ij),\
- Line 3228  double ***hbxij(double ***po, int nhstep
+ Line 3308  double ***hbxij(double ***po, int nhstep
      for(i=1; i<=nlstate+ndeath; i++)
        for(j=1;j<=nlstate+ndeath;j++) {
          po[i][j][h]=newm[i][j];
-         /*if(h==nhstepm) printf("po[%d][%d][%d]=%f ",i,j,h,po[i][j][h]);*/
+         /* if(h==nhstepm) */
+         /*   printf("po[%d][%d][%d]=%f ",i,j,h,po[i][j][h]); */
        }
-     /*printf("h=%d ",h);*/
+     /* printf("h=%d %.1f ",h, agexact); */
    } /* end h */
-   /*     printf("\n H=%d \n",h); */
+   /* printf("\n H=%d nhs=%d \n",h, nhstepm); */
    return po;
  }
- Line 3687  double funcone( double *x)
+ Line 3768  double funcone( double *x)
        s1=s[mw[mi][i]][i];
        s2=s[mw[mi+1][i]][i];
        /* if(s2==-1){ */
-       /*        printf(" s1=%d, s2=%d i=%d \n", s1, s2, i); */
+       /*        printf(" ERROR s1=%d, s2=%d i=%d \n", s1, s2, i); */
        /*        /\* exit(1); *\/ */
        /* } */
        bbh=(double)bh[mi][i]/(double)stepm;
- Line 3720  double funcone( double *x)
+ Line 3801  double funcone( double *x)
          fprintf(ficresilk,"%09ld %6.1f %6.1f %6d %2d %2d %2d %2d %3d %15.6f %8.4f %8.3f\
   %11.6f %11.6f %11.6f ", \
                  num[i], agebegin, ageend, i,s1,s2,mi,mw[mi][i],dh[mi][i],exp(lli),weight[i],weight[i]*gipmx/gsw,
-*weight[i]*lli,out[s1][s2],savm[s1][s2]);
+*weight[i]*lli,(s2==-1? -1: out[s1][s2]),(s2==-1? -1: savm[s1][s2]));
          for(k=1,llt=0.,l=0.; k<=nlstate; k++){
            llt +=ll[k]*gipmx/gsw;
            fprintf(ficresilk," %10.6f",-ll[k]*gipmx/gsw);
- Line 4240  void pstamp(FILE *fichier)
+ Line 4321  void pstamp(FILE *fichier)
    fprintf(fichier,"# %s.%s\n#IMaCh version %s, %s\n#%s\n# %s", optionfilefiname,optionfilext,version,copyright, fullversion, strstart);
  }
- int linreg(int ifi, int ila, int *no, const double x[], const double y[], double* a, double* b, double* r, double* sa, double * sb) {
-   /* y=a+bx regression */
-   double   sumx = 0.0;                        /* sum of x                      */
-   double   sumx2 = 0.0;                       /* sum of x**2                   */
-   double   sumxy = 0.0;                       /* sum of x * y                  */
-   double   sumy = 0.0;                        /* sum of y                      */
-   double   sumy2 = 0.0;                       /* sum of y**2                   */
-   double   sume2; /* sum of square or residuals */
-   double yhat;
-   double denom=0;
-   int i;
-   int ne=*no;
-   for ( i=ifi, ne=0;i<=ila;i++) {
-     if(!isfinite(x[i]) || !isfinite(y[i])){
-       /* printf(" x[%d]=%f, y[%d]=%f\n",i,x[i],i,y[i]); */
-       continue;
-     }
-     ne=ne+1;
-     sumx  += x[i];
-     sumx2 += x[i]*x[i];
-     sumxy += x[i] * y[i];
-     sumy  += y[i];
-     sumy2 += y[i]*y[i];
-     denom = (ne * sumx2 - sumx*sumx);
-     /* printf("ne=%d, i=%d,x[%d]=%f, y[%d]=%f sumx=%f, sumx2=%f, sumxy=%f, sumy=%f, sumy2=%f, denom=%f\n",ne,i,i,x[i],i,y[i], sumx, sumx2,sumxy, sumy, sumy2,denom); */
-   }
-   denom = (ne * sumx2 - sumx*sumx);
-   if (denom == 0) {
-     // vertical, slope m is infinity
-     *b = INFINITY;
-     *a = 0;
-     if (r) *r = 0;
-     return 1;
-   }
-   *b = (ne * sumxy  -  sumx * sumy) / denom;
-   *a = (sumy * sumx2  -  sumx * sumxy) / denom;
-   if (r!=NULL) {
-     *r = (sumxy - sumx * sumy / ne) /          /* compute correlation coeff     */
-       sqrt((sumx2 - sumx*sumx/ne) *
-            (sumy2 - sumy*sumy/ne));
-   }
-   *no=ne;
-   for ( i=ifi, ne=0;i<=ila;i++) {
-     if(!isfinite(x[i]) || !isfinite(y[i])){
-       /* printf(" x[%d]=%f, y[%d]=%f\n",i,x[i],i,y[i]); */
-       continue;
-     }
-     ne=ne+1;
-     yhat = y[i] - *a -*b* x[i];
-     sume2  += yhat * yhat ;
-     denom = (ne * sumx2 - sumx*sumx);
-     /* printf("ne=%d, i=%d,x[%d]=%f, y[%d]=%f sumx=%f, sumx2=%f, sumxy=%f, sumy=%f, sumy2=%f, denom=%f\n",ne,i,i,x[i],i,y[i], sumx, sumx2,sumxy, sumy, sumy2,denom); */
-   }
-   *sb = sqrt(sume2/(ne-2)/(sumx2 - sumx * sumx /ne));
-   *sa= *sb * sqrt(sumx2/ne);
-   return 0;
- }
  /************ Frequencies ********************/
  void  freqsummary(char fileres[], double p[], double pstart[], int iagemin, int iagemax, int **s, double **agev, int nlstate, int imx, \
- Line 4316  void  freqsummary(char fileres[], double
+ Line 4334  void  freqsummary(char fileres[], double
    int mi; /* Effective wave */
    int first;
    double ***freq; /* Frequencies */
-   double *x, *y, a,b,r, sa, sb; /* for regression, y=b+m*x and r is the correlation coefficient */
+   double *x, *y, a=0.,b=0.,r=1., sa=0., sb=0.; /* for regression, y=b+m*x and r is the correlation coefficient */
-   int no;
+   int no=0, linreg(int ifi, int ila, int *no, const double x[], const double y[], double* a, double* b, double* r, double* sa, double * sb);
    double *meanq;
    double **meanqt;
    double *pp, **prop, *posprop, *pospropt;
- Line 4755  Title=%s <br>Datafile=%s Firstpass=%d La
+ Line 4773  Title=%s <br>Datafile=%s Firstpass=%d La
                      y[iage]= log(freq[i][k][iage]/freq[i][i][iage]);
                      /* printf("i=%d, k=%d, s1=%d, j1=%d, jj=%d, y[%d]=%f\n",i,k,s1,j1,jj, iage, y[iage]); */
                    }
+                   /* Some are not finite, but linreg will ignore these ages */
+                   no=0;
                    linreg(iagemin,iagemax,&no,x,y,&a,&b,&r, &sa, &sb ); /* y= a+b*x with standard errors */
                    pstart[s1]=b;
                    pstart[s1-1]=a;
- Line 4858  Title=%s <br>Datafile=%s Firstpass=%d La
+ Line 4878  Title=%s <br>Datafile=%s Firstpass=%d La
    /* End of freqsummary */
  }
+ /* Simple linear regression */
+ int linreg(int ifi, int ila, int *no, const double x[], const double y[], double* a, double* b, double* r, double* sa, double * sb) {
+   /* y=a+bx regression */
+   double   sumx = 0.0;                        /* sum of x                      */
+   double   sumx2 = 0.0;                       /* sum of x**2                   */
+   double   sumxy = 0.0;                       /* sum of x * y                  */
+   double   sumy = 0.0;                        /* sum of y                      */
+   double   sumy2 = 0.0;                       /* sum of y**2                   */
+   double   sume2 = 0.0;                       /* sum of square or residuals */
+   double yhat;
+   double denom=0;
+   int i;
+   int ne=*no;
+   for ( i=ifi, ne=0;i<=ila;i++) {
+     if(!isfinite(x[i]) || !isfinite(y[i])){
+       /* printf(" x[%d]=%f, y[%d]=%f\n",i,x[i],i,y[i]); */
+       continue;
+     }
+     ne=ne+1;
+     sumx  += x[i];
+     sumx2 += x[i]*x[i];
+     sumxy += x[i] * y[i];
+     sumy  += y[i];
+     sumy2 += y[i]*y[i];
+     denom = (ne * sumx2 - sumx*sumx);
+     /* printf("ne=%d, i=%d,x[%d]=%f, y[%d]=%f sumx=%f, sumx2=%f, sumxy=%f, sumy=%f, sumy2=%f, denom=%f\n",ne,i,i,x[i],i,y[i], sumx, sumx2,sumxy, sumy, sumy2,denom); */
+   }
+   denom = (ne * sumx2 - sumx*sumx);
+   if (denom == 0) {
+     // vertical, slope m is infinity
+     *b = INFINITY;
+     *a = 0;
+     if (r) *r = 0;
+     return 1;
+   }
+   *b = (ne * sumxy  -  sumx * sumy) / denom;
+   *a = (sumy * sumx2  -  sumx * sumxy) / denom;
+   if (r!=NULL) {
+     *r = (sumxy - sumx * sumy / ne) /          /* compute correlation coeff     */
+       sqrt((sumx2 - sumx*sumx/ne) *
+            (sumy2 - sumy*sumy/ne));
+   }
+   *no=ne;
+   for ( i=ifi, ne=0;i<=ila;i++) {
+     if(!isfinite(x[i]) || !isfinite(y[i])){
+       /* printf(" x[%d]=%f, y[%d]=%f\n",i,x[i],i,y[i]); */
+       continue;
+     }
+     ne=ne+1;
+     yhat = y[i] - *a -*b* x[i];
+     sume2  += yhat * yhat ;
+     denom = (ne * sumx2 - sumx*sumx);
+     /* printf("ne=%d, i=%d,x[%d]=%f, y[%d]=%f sumx=%f, sumx2=%f, sumxy=%f, sumy=%f, sumy2=%f, denom=%f\n",ne,i,i,x[i],i,y[i], sumx, sumx2,sumxy, sumy, sumy2,denom); */
+   }
+   *sb = sqrt(sume2/(double)(ne-2)/(sumx2 - sumx * sumx /(double)ne));
+   *sa= *sb * sqrt(sumx2/ne);
+   return 0;
+ }
  /************ Prevalence ********************/
  void prevalence(double ***probs, double agemin, double agemax, int **s, double **agev, int nlstate, int imx, int *Tvar, int **nbcode, int *ncodemax,double **mint,double **anint, double dateprev1,double dateprev2, int firstpass, int lastpass)
  {
- Line 4947  void prevalence(double ***probs, double
+ Line 5033  void prevalence(double ***probs, double
            } else{
              if(first==1){
                first=0;
-               printf("Warning Observed prevalence probs[%d][%d][%d]=%lf because of lack of cases\nSee others in log file...\n",jk,i,j1,probs[i][jk][j1]);
+               printf("Warning Observed prevalence doesn't sum to 1 for state %d: probs[%d][%d][%d]=%lf because of lack of cases\nSee others in log file...\n",jk,i,jk, j1,probs[i][jk][j1]);
+               fprintf(ficlog,"Warning Observed prevalence doesn't sum to 1 for state %d: probs[%d][%d][%d]=%lf because of lack of cases\nSee others in log file...\n",jk,i,jk, j1,probs[i][jk][j1]);
+             }else{
+               fprintf(ficlog,"Warning Observed prevalence doesn't sum to 1 for state %d: probs[%d][%d][%d]=%lf because of lack of cases\nSee others in log file...\n",jk,i,jk, j1,probs[i][jk][j1]);
              }
            }
          }
- Line 5387  void  concatwav(int wav[], int **dh, int
+ Line 5476  void  concatwav(int wav[], int **dh, int
    /* hstepm beeing the number of stepms, if hstepm=1 the length of hstepm is stepm.
       nhstepm is the number of hstepm from age to agelim
       nstepm is the number of stepm from age to agelin.
-      Look at hpijx to understand the reason of that which relies in memory size
+      Look at hpijx to understand the reason which relies in memory size consideration
       and note for a fixed period like estepm months */
    /* We decided (b) to get a life expectancy respecting the most precise curvature of the
       survival function given by stepm (the optimization length). Unfortunately it
- Line 5618  void  concatwav(int wav[], int **dh, int
+ Line 5707  void  concatwav(int wav[], int **dh, int
            /* if((int)age==70)printf("i=%2d,j=%2d,h=%2d,age=%3d,%9.4f,%9.4f,%9.4f\n",i,j,h,(int)age,p3mat[i][j][h],hf,eij[i][j][(int)age]);*/
          }
+     /* Standard deviation of expectancies ij */
      fprintf(ficresstdeij,"%3.0f",age );
      for(i=1; i<=nlstate;i++){
        eip=0.;
- Line 5633  void  concatwav(int wav[], int **dh, int
+ Line 5723  void  concatwav(int wav[], int **dh, int
      }
      fprintf(ficresstdeij,"\n");
+     /* Variance of expectancies ij */
      fprintf(ficrescveij,"%3.0f",age );
      for(i=1; i<=nlstate;i++)
        for(j=1; j<=nlstate;j++){
- Line 5986  void  concatwav(int wav[], int **dh, int
+ Line 6077  void  concatwav(int wav[], int **dh, int
   }  /* end varevsij */
  /************ Variance of prevlim ******************/
-  void varprevlim(char fileres[], double **varpl, double **matcov, double x[], double delti[], int nlstate, int stepm, double bage, double fage, double **oldm, double **savm, double **prlim, double ftolpl, int *ncvyearp, int ij, char strstart[], int nres)
+  void varprevlim(char fileresvpl[], FILE *ficresvpl, double **varpl, double **matcov, double x[], double delti[], int nlstate, int stepm, double bage, double fage, double **oldm, double **savm, double **prlim, double ftolpl, int *ncvyearp, int ij, char strstart[], int nres)
  {
    /* Variance of prevalence limit  for each state ij using current parameters x[] and estimates of neighbourhood give by delti*/
    /*  double **prevalim(double **prlim, int nlstate, double *xp, double age, double **oldm, double **savm,double ftolpl);*/
-   double **dnewm,**doldm;
+   double **dnewmpar,**doldm;
    int i, j, nhstepm, hstepm;
    double *xp;
    double *gp, *gm;
- Line 6010  void  concatwav(int wav[], int **dh, int
+ Line 6101  void  concatwav(int wav[], int **dh, int
    fprintf(ficresvpl,"\n");
    xp=vector(1,npar);
-   dnewm=matrix(1,nlstate,1,npar);
+   dnewmpar=matrix(1,nlstate,1,npar);
    doldm=matrix(1,nlstate,1,nlstate);
    hstepm=1*YEARM; /* Every year of age */
- Line 6080  void  concatwav(int wav[], int **dh, int
+ Line 6171  void  concatwav(int wav[], int **dh, int
      for(i=1;i<=nlstate;i++)
        varpl[i][(int)age] =0.;
      if((int)age==79 ||(int)age== 80  ||(int)age== 81){
-     matprod2(dnewm,trgradg,1,nlstate,1,npar,1,npar,matcov);
+     matprod2(dnewmpar,trgradg,1,nlstate,1,npar,1,npar,matcov);
-     matprod2(doldm,dnewm,1,nlstate,1,npar,1,nlstate,gradg);
+     matprod2(doldm,dnewmpar,1,nlstate,1,npar,1,nlstate,gradg);
      }else{
-     matprod2(dnewm,trgradg,1,nlstate,1,npar,1,npar,matcov);
+     matprod2(dnewmpar,trgradg,1,nlstate,1,npar,1,npar,matcov);
-     matprod2(doldm,dnewm,1,nlstate,1,npar,1,nlstate,gradg);
+     matprod2(doldm,dnewmpar,1,nlstate,1,npar,1,nlstate,gradg);
      }
      for(i=1;i<=nlstate;i++)
        varpl[i][(int)age] = doldm[i][i]; /* Covariances are useless */
- Line 6105  void  concatwav(int wav[], int **dh, int
+ Line 6196  void  concatwav(int wav[], int **dh, int
    free_vector(xp,1,npar);
    free_matrix(doldm,1,nlstate,1,npar);
-   free_matrix(dnewm,1,nlstate,1,nlstate);
+   free_matrix(dnewmpar,1,nlstate,1,nlstate);
  }
- /************ Variance of one-step probabilities  ******************/
- void varprob(char optionfilefiname[], double **matcov, double x[], double delti[], int nlstate, double bage, double fage, int ij, int *Tvar, int **nbcode, int *ncodemax, char strstart[])
-  {
-    int i, j=0,  k1, l1, tj;
-    int k2, l2, j1,  z1;
-    int k=0, l;
-    int first=1, first1, first2;
-    double cv12, mu1, mu2, lc1, lc2, v12, v21, v11, v22,v1,v2, c12, tnalp;
-    double **dnewm,**doldm;
-    double *xp;
-    double *gp, *gm;
-    double **gradg, **trgradg;
-    double **mu;
-    double age, cov[NCOVMAX+1];
-    double std=2.0; /* Number of standard deviation wide of confidence ellipsoids */
-    int theta;
-    char fileresprob[FILENAMELENGTH];
-    char fileresprobcov[FILENAMELENGTH];
-    char fileresprobcor[FILENAMELENGTH];
-    double ***varpij;
-    strcpy(fileresprob,"PROB_");
-    strcat(fileresprob,fileres);
-    if((ficresprob=fopen(fileresprob,"w"))==NULL) {
-      printf("Problem with resultfile: %s\n", fileresprob);
-      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprob);
-    }
-    strcpy(fileresprobcov,"PROBCOV_");
-    strcat(fileresprobcov,fileresu);
-    if((ficresprobcov=fopen(fileresprobcov,"w"))==NULL) {
-      printf("Problem with resultfile: %s\n", fileresprobcov);
-      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprobcov);
-    }
-    strcpy(fileresprobcor,"PROBCOR_");
-    strcat(fileresprobcor,fileresu);
-    if((ficresprobcor=fopen(fileresprobcor,"w"))==NULL) {
-      printf("Problem with resultfile: %s\n", fileresprobcor);
-      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprobcor);
-    }
-    printf("Computing standard deviation of one-step probabilities: result on file '%s' \n",fileresprob);
-    fprintf(ficlog,"Computing standard deviation of one-step probabilities: result on file '%s' \n",fileresprob);
-    printf("Computing matrix of variance covariance of one-step probabilities: result on file '%s' \n",fileresprobcov);
-    fprintf(ficlog,"Computing matrix of variance covariance of one-step probabilities: result on file '%s' \n",fileresprobcov);
-    printf("and correlation matrix of one-step probabilities: result on file '%s' \n",fileresprobcor);
-    fprintf(ficlog,"and correlation matrix of one-step probabilities: result on file '%s' \n",fileresprobcor);
-    pstamp(ficresprob);
-    fprintf(ficresprob,"#One-step probabilities and stand. devi in ()\n");
-    fprintf(ficresprob,"# Age");
-    pstamp(ficresprobcov);
-    fprintf(ficresprobcov,"#One-step probabilities and covariance matrix\n");
-    fprintf(ficresprobcov,"# Age");
-    pstamp(ficresprobcor);
-    fprintf(ficresprobcor,"#One-step probabilities and correlation matrix\n");
-    fprintf(ficresprobcor,"# Age");
+ /************ Variance of backprevalence limit ******************/
+  void varbrevlim(char fileresvbl[], FILE  *ficresvbl, double **varbpl, double **matcov, double x[], double delti[], int nlstate, int stepm, double bage, double fage, double **oldm, double **savm, double **bprlim, double ftolpl, int mobilavproj, int *ncvyearp, int ij, char strstart[], int nres)
+ {
+   /* Variance of backward prevalence limit  for each state ij using current parameters x[] and estimates of neighbourhood give by delti*/
+   /*  double **prevalim(double **prlim, int nlstate, double *xp, double age, double **oldm, double **savm,double ftolpl);*/
-    for(i=1; i<=nlstate;i++)
+   double **dnewmpar,**doldm;
-      for(j=1; j<=(nlstate+ndeath);j++){
+   int i, j, nhstepm, hstepm;
+   double *xp;
+   double *gp, *gm;
+   double **gradg, **trgradg;
+   double **mgm, **mgp;
+   double age,agelim;
+   int theta;
+   pstamp(ficresvbl);
+   fprintf(ficresvbl,"# Standard deviation of back (stable) prevalences \n");
+   fprintf(ficresvbl,"# Age ");
+   if(nresult >=1)
+     fprintf(ficresvbl," Result# ");
+   for(i=1; i<=nlstate;i++)
+       fprintf(ficresvbl," %1d-%1d",i,i);
+   fprintf(ficresvbl,"\n");
+   xp=vector(1,npar);
+   dnewmpar=matrix(1,nlstate,1,npar);
+   doldm=matrix(1,nlstate,1,nlstate);
+   hstepm=1*YEARM; /* Every year of age */
+   hstepm=hstepm/stepm; /* Typically in stepm units, if j= 2 years, = 2/6 months = 4 */
+   agelim = AGEINF;
+   for (age=fage; age>=bage; age --){ /* If stepm=6 months */
+     nhstepm=(int) rint((age-agelim)*YEARM/stepm); /* Typically 20 years = 20*12/6=40 */
+     if (stepm >= YEARM) hstepm=1;
+     nhstepm = nhstepm/hstepm; /* Typically 40/4=10 */
+     gradg=matrix(1,npar,1,nlstate);
+     mgp=matrix(1,npar,1,nlstate);
+     mgm=matrix(1,npar,1,nlstate);
+     gp=vector(1,nlstate);
+     gm=vector(1,nlstate);
+     for(theta=1; theta <=npar; theta++){
+       for(i=1; i<=npar; i++){ /* Computes gradient */
+         xp[i] = x[i] + (i==theta ?delti[theta]:0);
+       }
+       if(mobilavproj > 0 )
+         bprevalim(bprlim, mobaverage,nlstate,xp,age,ftolpl,ncvyearp,ij,nres);
+       else
+         bprevalim(bprlim, mobaverage,nlstate,xp,age,ftolpl,ncvyearp,ij,nres);
+       for(i=1;i<=nlstate;i++){
+         gp[i] = bprlim[i][i];
+         mgp[theta][i] = bprlim[i][i];
+       }
+      for(i=1; i<=npar; i++) /* Computes gradient */
+         xp[i] = x[i] - (i==theta ?delti[theta]:0);
+        if(mobilavproj > 0 )
+         bprevalim(bprlim, mobaverage,nlstate,xp,age,ftolpl,ncvyearp,ij,nres);
+        else
+         bprevalim(bprlim, mobaverage,nlstate,xp,age,ftolpl,ncvyearp,ij,nres);
+       for(i=1;i<=nlstate;i++){
+         gm[i] = bprlim[i][i];
+         mgm[theta][i] = bprlim[i][i];
+       }
+       for(i=1;i<=nlstate;i++)
+         gradg[theta][i]= (gp[i]-gm[i])/2./delti[theta];
+       /* gradg[theta][2]= -gradg[theta][1]; */ /* For testing if nlstate=2 */
+     } /* End theta */
+     trgradg =matrix(1,nlstate,1,npar);
+     for(j=1; j<=nlstate;j++)
+       for(theta=1; theta <=npar; theta++)
+         trgradg[j][theta]=gradg[theta][j];
+     /* if((int)age==79 ||(int)age== 80 ||(int)age== 81 ){ */
+     /*   printf("\nmgm mgp %d ",(int)age); */
+     /*   for(j=1; j<=nlstate;j++){ */
+     /*  printf(" %d ",j); */
+     /*  for(theta=1; theta <=npar; theta++) */
+     /*    printf(" %d %lf %lf",theta,mgm[theta][j],mgp[theta][j]); */
+     /*  printf("\n "); */
+     /*   } */
+     /* } */
+     /* if((int)age==79 ||(int)age== 80 ||(int)age== 81 ){ */
+     /*   printf("\n gradg %d ",(int)age); */
+     /*   for(j=1; j<=nlstate;j++){ */
+     /*  printf("%d ",j); */
+     /*  for(theta=1; theta <=npar; theta++) */
+     /*    printf("%d %lf ",theta,gradg[theta][j]); */
+     /*  printf("\n "); */
+     /*   } */
+     /* } */
+     for(i=1;i<=nlstate;i++)
+       varbpl[i][(int)age] =0.;
+     if((int)age==79 ||(int)age== 80  ||(int)age== 81){
+     matprod2(dnewmpar,trgradg,1,nlstate,1,npar,1,npar,matcov);
+     matprod2(doldm,dnewmpar,1,nlstate,1,npar,1,nlstate,gradg);
+     }else{
+     matprod2(dnewmpar,trgradg,1,nlstate,1,npar,1,npar,matcov);
+     matprod2(doldm,dnewmpar,1,nlstate,1,npar,1,nlstate,gradg);
+     }
+     for(i=1;i<=nlstate;i++)
+       varbpl[i][(int)age] = doldm[i][i]; /* Covariances are useless */
+     fprintf(ficresvbl,"%.0f ",age );
+     if(nresult >=1)
+       fprintf(ficresvbl,"%d ",nres );
+     for(i=1; i<=nlstate;i++)
+       fprintf(ficresvbl," %.5f (%.5f)",bprlim[i][i],sqrt(varbpl[i][(int)age]));
+     fprintf(ficresvbl,"\n");
+     free_vector(gp,1,nlstate);
+     free_vector(gm,1,nlstate);
+     free_matrix(mgm,1,npar,1,nlstate);
+     free_matrix(mgp,1,npar,1,nlstate);
+     free_matrix(gradg,1,npar,1,nlstate);
+     free_matrix(trgradg,1,nlstate,1,npar);
+   } /* End age */
+   free_vector(xp,1,npar);
+   free_matrix(doldm,1,nlstate,1,npar);
+   free_matrix(dnewmpar,1,nlstate,1,nlstate);
+ }
+ /************ Variance of one-step probabilities  ******************/
+ void varprob(char optionfilefiname[], double **matcov, double x[], double delti[], int nlstate, double bage, double fage, int ij, int *Tvar, int **nbcode, int *ncodemax, char strstart[])
+  {
+    int i, j=0,  k1, l1, tj;
+    int k2, l2, j1,  z1;
+    int k=0, l;
+    int first=1, first1, first2;
+    double cv12, mu1, mu2, lc1, lc2, v12, v21, v11, v22,v1,v2, c12, tnalp;
+    double **dnewm,**doldm;
+    double *xp;
+    double *gp, *gm;
+    double **gradg, **trgradg;
+    double **mu;
+    double age, cov[NCOVMAX+1];
+    double std=2.0; /* Number of standard deviation wide of confidence ellipsoids */
+    int theta;
+    char fileresprob[FILENAMELENGTH];
+    char fileresprobcov[FILENAMELENGTH];
+    char fileresprobcor[FILENAMELENGTH];
+    double ***varpij;
+    strcpy(fileresprob,"PROB_");
+    strcat(fileresprob,fileres);
+    if((ficresprob=fopen(fileresprob,"w"))==NULL) {
+      printf("Problem with resultfile: %s\n", fileresprob);
+      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprob);
+    }
+    strcpy(fileresprobcov,"PROBCOV_");
+    strcat(fileresprobcov,fileresu);
+    if((ficresprobcov=fopen(fileresprobcov,"w"))==NULL) {
+      printf("Problem with resultfile: %s\n", fileresprobcov);
+      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprobcov);
+    }
+    strcpy(fileresprobcor,"PROBCOR_");
+    strcat(fileresprobcor,fileresu);
+    if((ficresprobcor=fopen(fileresprobcor,"w"))==NULL) {
+      printf("Problem with resultfile: %s\n", fileresprobcor);
+      fprintf(ficlog,"Problem with resultfile: %s\n", fileresprobcor);
+    }
+    printf("Computing standard deviation of one-step probabilities: result on file '%s' \n",fileresprob);
+    fprintf(ficlog,"Computing standard deviation of one-step probabilities: result on file '%s' \n",fileresprob);
+    printf("Computing matrix of variance covariance of one-step probabilities: result on file '%s' \n",fileresprobcov);
+    fprintf(ficlog,"Computing matrix of variance covariance of one-step probabilities: result on file '%s' \n",fileresprobcov);
+    printf("and correlation matrix of one-step probabilities: result on file '%s' \n",fileresprobcor);
+    fprintf(ficlog,"and correlation matrix of one-step probabilities: result on file '%s' \n",fileresprobcor);
+    pstamp(ficresprob);
+    fprintf(ficresprob,"#One-step probabilities and stand. devi in ()\n");
+    fprintf(ficresprob,"# Age");
+    pstamp(ficresprobcov);
+    fprintf(ficresprobcov,"#One-step probabilities and covariance matrix\n");
+    fprintf(ficresprobcov,"# Age");
+    pstamp(ficresprobcor);
+    fprintf(ficresprobcor,"#One-step probabilities and correlation matrix\n");
+    fprintf(ficresprobcor,"# Age");
+    for(i=1; i<=nlstate;i++)
+      for(j=1; j<=(nlstate+ndeath);j++){
         fprintf(ficresprob," p%1d-%1d (SE)",i,j);
         fprintf(ficresprobcov," p%1d-%1d ",i,j);
         fprintf(ficresprobcor," p%1d-%1d ",i,j);
- Line 6185  void varprob(char optionfilefiname[], do
+ Line 6401  void varprob(char optionfilefiname[], do
     fprintf(fichtm,"\n<li><h4> Computing and drawing one step probabilities with their confidence intervals</h4></li>\n");
     fprintf(fichtm,"\n");
-    fprintf(fichtm,"\n<li><h4> <a href=\"%s\">Matrix of variance-covariance of one-step probabilities (drawings)</a></h4> this page is important in order to visualize confidence intervals and especially correlation between disability and recovery, or more generally, way in and way back.</li>\n",optionfilehtmcov);
+    fprintf(fichtm,"\n<li><h4> <a href=\"%s\">Matrix of variance-covariance of one-step probabilities (drawings)</a></h4> this page is important in order to visualize confidence intervals and especially correlation between disability and recovery, or more generally, way in and way back. %s</li>\n",optionfilehtmcov,optionfilehtmcov);
     fprintf(fichtmcov,"Current page is file <a href=\"%s\">%s</a><br>\n\n<h4>Matrix of variance-covariance of pairs of step probabilities</h4>\n",optionfilehtmcov, optionfilehtmcov);
     fprintf(fichtmcov,"\nEllipsoids of confidence centered on point (p<inf>ij</inf>, p<inf>kl</inf>) are estimated \
  and drawn. It helps understanding how is the covariance between two incidences.\
- Line 6402  To be simple, these graphs help to under
+ Line 6618  To be simple, these graphs help to under
                     fprintf(ficgp,"\nset parametric;unset label");
                     fprintf(ficgp,"\nset log y;set log x; set xlabel \"p%1d%1d (year-1)\";set ylabel \"p%1d%1d (year-1)\"",k1,l1,k2,l2);
                     fprintf(ficgp,"\nset ter svg size 640, 480");
-                    fprintf(fichtmcov,"\n<br>Ellipsoids of confidence cov(p%1d%1d,p%1d%1d) expressed in year<sup>-1</sup>\
+                    fprintf(fichtmcov,"\n<p><br>Ellipsoids of confidence cov(p%1d%1d,p%1d%1d) expressed in year<sup>-1</sup>\
   :<a href=\"%s_%d%1d%1d-%1d%1d.svg\">                                                                                                                                           \
  %s_%d%1d%1d-%1d%1d.svg</A>, ",k1,l1,k2,l2,\
                             subdirf2(optionfilefiname,"VARPIJGR_"), j1,k1,l1,k2,l2,      \
- Line 6413  To be simple, these graphs help to under
+ Line 6629  To be simple, these graphs help to under
                     fprintf(ficgp,"\nset label \"%d\" at %11.3e,%11.3e center",(int) age, mu1,mu2);
                     fprintf(ficgp,"\n# Age %d, p%1d%1d - p%1d%1d",(int) age, k1,l1,k2,l2);
                     fprintf(ficgp,"\nplot [-pi:pi] %11.3e+ %.3f*(%11.3e*%11.3e*cos(t)+%11.3e*%11.3e*sin(t)), %11.3e +%.3f*(%11.3e*%11.3e*cos(t)+%11.3e*%11.3e*sin(t)) not",      \
-                            mu1,std,v11,sqrt(lc1),v12,sqrt(lc2),                                                                         \
+                            mu1,std,v11,sqrt(lc1),v12,sqrt(fabs(lc2)),   \
-                            mu2,std,v21,sqrt(lc1),v22,sqrt(lc2));
+                            mu2,std,v21,sqrt(lc1),v22,sqrt(fabs(lc2))); /* For gnuplot only */
                   }else{
                     first=0;
                     fprintf(fichtmcov," %d (%.3f),",(int) age, c12);
                     fprintf(ficgp,"\n# Age %d, p%1d%1d - p%1d%1d",(int) age, k1,l1,k2,l2);
                     fprintf(ficgp,"\nset label \"%d\" at %11.3e,%11.3e center",(int) age, mu1,mu2);
                     fprintf(ficgp,"\nreplot %11.3e+ %.3f*(%11.3e*%11.3e*cos(t)+%11.3e*%11.3e*sin(t)), %11.3e +%.3f*(%11.3e*%11.3e*cos(t)+%11.3e*%11.3e*sin(t)) not", \
-                            mu1,std,v11,sqrt(lc1),v12,sqrt(lc2),                                 \
+                            mu1,std,v11,sqrt(lc1),v12,sqrt(fabs(lc2)),   \
-                            mu2,std,v21,sqrt(lc1),v22,sqrt(lc2));
+                            mu2,std,v21,sqrt(lc1),v22,sqrt(fabs(lc2)));
                   }/* if first */
                 } /* age mod 5 */
               } /* end loop age */
- Line 6451  void printinghtml(char fileresu[], char
+ Line 6667  void printinghtml(char fileresu[], char
                    int lastpass, int stepm, int weightopt, char model[],\
                    int imx,int jmin, int jmax, double jmeanint,char rfileres[],\
                    int popforecast, int mobilav, int prevfcast, int mobilavproj, int backcast, int estepm , \
-                   double jprev1, double mprev1,double anprev1, double dateprev1, \
+                   double jprev1, double mprev1,double anprev1, double dateprev1, double dateproj1, double dateback1, \
-                   double jprev2, double mprev2,double anprev2, double dateprev2){
+                   double jprev2, double mprev2,double anprev2, double dateprev2, double dateproj2, double dateback2){
    int jj1, k1, i1, cpt, k4, nres;
     fprintf(fichtm,"<ul><li><a href='#firstorder'>Result files (first order: no variance)</a>\n \
- Line 6606  divided by h: <sub>h</sub>P<sub>ij</sub>
+ Line 6822  divided by h: <sub>h</sub>P<sub>ij</sub>
       if(prevfcast==1){
         /* Projection of prevalence up to period (stable) prevalence in each health state */
         for(cpt=1; cpt<=nlstate;cpt++){
-          fprintf(fichtm,"<br>\n- Projection of cross-sectional prevalence (estimated with cases observed from %.1f to %.1f and mobil_average=%d) up to period (stable) prevalence in state %d. Or probability to be in state %d being in state (1 to %d) at different ages. <a href=\"%s_%d-%d-%d.svg\">%s_%d-%d-%d.svg</a><br> \
+          fprintf(fichtm,"<br>\n- Projection of cross-sectional prevalence (estimated with cases observed from %.1f to %.1f and mobil_average=%d), from year %.1f up to year %.1f tending to period (stable) prevalence in state %d. Or probability to be in state %d being in an observed weighted state (from 1 to %d). <a href=\"%s_%d-%d-%d.svg\">%s_%d-%d-%d.svg</a><br> \
- <img src=\"%s_%d-%d-%d.svg\">", dateprev1, dateprev2, mobilavproj, cpt, cpt, nlstate, subdirf2(optionfilefiname,"PROJ_"),cpt,k1,nres,subdirf2(optionfilefiname,"PROJ_"),cpt,k1,nres,subdirf2(optionfilefiname,"PROJ_"),cpt,k1,nres);
+ <img src=\"%s_%d-%d-%d.svg\">", dateprev1, dateprev2, mobilavproj, dateproj1, dateproj2, cpt, cpt, nlstate, subdirf2(optionfilefiname,"PROJ_"),cpt,k1,nres,subdirf2(optionfilefiname,"PROJ_"),cpt,k1,nres,subdirf2(optionfilefiname,"PROJ_"),cpt,k1,nres);
+        }
+      }
+      if(backcast==1){
+       /* Back projection of prevalence up to stable (mixed) back-prevalence in each health state */
+        for(cpt=1; cpt<=nlstate;cpt++){
+          fprintf(fichtm,"<br>\n- Back projection of cross-sectional prevalence (estimated with cases observed from %.1f to %.1f and mobil_average=%d), \
+  from year %.1f up to year %.1f (probably close to stable [mixed] back prevalence in state %d (randomness in cross-sectional prevalence is not taken into \
+  account but can visually be appreciated). Or probability to have been in an state %d, knowing that the person was in either state (1 or %d) \
+ with weights corresponding to observed prevalence at different ages. <a href=\"%s_%d-%d-%d.svg\">%s_%d-%d-%d.svg</a><br> \
+  <img src=\"%s_%d-%d-%d.svg\">", dateprev1, dateprev2, mobilavproj, dateback1, dateback2, cpt, cpt, nlstate, subdirf2(optionfilefiname,"PROJB_"),cpt,k1,nres,subdirf2(optionfilefiname,"PROJB_"),cpt,k1,nres,subdirf2(optionfilefiname,"PROJB_"),cpt,k1,nres);
         }
       }
- Line 6713  true period expectancies (those weighted
+ Line 6939  true period expectancies (those weighted
  }
  /******************* Gnuplot file **************/
- void printinggnuplot(char fileresu[], char optionfilefiname[], double ageminpar, double agemaxpar, double fage , int prevfcast, int backcast, char pathc[], double p[]){
+ void printinggnuplot(char fileresu[], char optionfilefiname[], double ageminpar, double agemaxpar, double bage, double fage , int prevfcast, int backcast, char pathc[], double p[], int offyear, int offbyear){
    char dirfileres[132],optfileres[132];
    char gplotcondition[132], gplotlabel[132];
- Line 6722  void printinggnuplot(char fileresu[], ch
+ Line 6948  void printinggnuplot(char fileresu[], ch
    int ng=0;
    int vpopbased;
    int ioffset; /* variable offset for columns */
+   int iyearc=1; /* variable column for year of projection  */
+   int iagec=1; /* variable column for age of projection  */
    int nres=0; /* Index of resultline */
+   int istart=1; /* For starting graphs in projections */
  /*   if((ficgp=fopen(optionfilegnuplot,"a"))==NULL) { */
  /*     printf("Problem with file %s",optionfilegnuplot); */
- Line 6825  void printinggnuplot(char fileresu[], ch
+ Line 7054  void printinggnuplot(char fileresu[], ch
          fprintf(ficgp,"\" t\"\" w l lt 1,\"%s\" u 1:((",subdirf2(fileresu,"P_"));
          if(cptcoveff ==0){
-           fprintf(ficgp,"$%d)) t 'Observed prevalence in state %d' with line lt 3",      2+(cpt-1),  cpt );
+           fprintf(ficgp,"$%d)) t 'Observed prevalence in state %d' with line lt 3",      2+3*(cpt-1),  cpt );
          }else{
            kl=0;
            for (k=1; k<=cptcoveff; k++){    /* For each combination of covariate  */
- Line 6876  void printinggnuplot(char fileresu[], ch
+ Line 7105  void printinggnuplot(char fileresu[], ch
                }
              } /* end covariate */
            } /* end if no covariate */
+           if(backcast == 1){
+             fprintf(ficgp,", \"%s\" every :::%d::%d u 1:($2==%d ? $3:1/0) \"%%lf %%lf",subdirf2(fileresu,"VBL_"),nres-1,nres-1,nres);
+             /* k1-1 error should be nres-1*/
+             for (i=1; i<= nlstate ; i ++) {
+               if (i==cpt) fprintf(ficgp," %%lf (%%lf)");
+               else        fprintf(ficgp," %%*lf (%%*lf)");
+             }
+             fprintf(ficgp,"\" t\"Backward (stable) prevalence\" w l lt 6 dt 3,\"%s\" every :::%d::%d u 1:($2==%d ? $3+1.96*$4 : 1/0) \"%%lf %%lf",subdirf2(fileresu,"VBL_"),nres-1,nres-1,nres);
+             for (i=1; i<= nlstate ; i ++) {
+               if (i==cpt) fprintf(ficgp," %%lf (%%lf)");
+               else fprintf(ficgp," %%*lf (%%*lf)");
+             }
+             fprintf(ficgp,"\" t\"95%% CI\" w l lt 5,\"%s\" every :::%d::%d u 1:($2==%d ? $3-1.96*$4 : 1/0) \"%%lf %%lf",subdirf2(fileresu,"VBL_"),nres-1,nres-1,nres);
+             for (i=1; i<= nlstate ; i ++) {
+               if (i==cpt) fprintf(ficgp," %%lf (%%lf)");
+               else fprintf(ficgp," %%*lf (%%*lf)");
+             }
+             fprintf(ficgp,"\" t\"\" w l lt 5");
+           } /* end if backprojcast */
          } /* end if backcast */
          fprintf(ficgp,"\nset out ;unset label;\n");
        } /* nres */
- Line 7169  set ter svg size 640, 480\nunset log y\n
+ Line 7417  set ter svg size 640, 480\nunset log y\n
      for(nres=1; nres <= nresult; nres++){ /* For each resultline */
        if(m != 1 && TKresult[nres]!= k1)
          continue;
-       for (cpt=1; cpt<=nlstate ; cpt ++) { /* For each life ending state */
+       for (cpt=1; cpt<=nlstate ; cpt ++) { /* For each life origin state */
          strcpy(gplotlabel,"(");
          fprintf(ficgp,"\n#\n#\n#CV Back preval stable (period): 'pijb' files, covariatecombination#=%d state=%d",k1, cpt);
          for (k=1; k<=cptcoveff; k++){    /* For each covariate and each value */
- Line 7193  set ter svg size 640, 480\nunset log y\n
+ Line 7441  set ter svg size 640, 480\nunset log y\n
          }
          fprintf(ficgp,"\nset out \"%s_%d-%d-%d.svg\" \n",subdirf2(optionfilefiname,"PB_"),cpt,k1,nres);
-         fprintf(ficgp,"set label \"Ending alive state %d %s\" at graph 0.98,0.5 center rotate font \"Helvetica,12\"\n",cpt,gplotlabel);
+         fprintf(ficgp,"set label \"Origin alive state %d %s\" at graph 0.98,0.5 center rotate font \"Helvetica,12\"\n",cpt,gplotlabel);
          fprintf(ficgp,"set xlabel \"Age\" \nset ylabel \"Probability\" \n\
  set ter svg size 640, 480\nunset log y\nplot [%.f:%.f]  ", ageminpar, agemaxpar);
          k=3; /* Offset */
-         for (i=1; i<= nlstate ; i ++){ /* State of origin */
+         for (i=1; i<= nlstate ; i ++){ /* State of arrival */
            if(i==1)
              fprintf(ficgp,"\"%s\"",subdirf2(fileresu,"PIJB_"));
            else
- Line 7210  set ter svg size 640, 480\nunset log y\n
+ Line 7458  set ter svg size 640, 480\nunset log y\n
            /* for (j=2; j<= nlstate ; j ++) */
            /*    fprintf(ficgp,"+$%d",k+l+j-1); */
            /*    /\* fprintf(ficgp,"+$%d",k+l+j-1); *\/ */
-           fprintf(ficgp,") t \"bprev(%d,%d)\" w l",i,cpt);
+           fprintf(ficgp,") t \"bprev(%d,%d)\" w l",cpt,i);
          } /* nlstate */
          fprintf(ficgp,"\nset out; unset label;\n");
        } /* end cpt state*/
- Line 7253  set ter svg size 640, 480\nunset log y\n
+ Line 7501  set ter svg size 640, 480\nunset log y\n
          fprintf(ficgp,"set label \"Alive state %d %s\" at graph 0.98,0.5 center rotate font \"Helvetica,12\"\n",cpt,gplotlabel);
          fprintf(ficgp,"set xlabel \"Age\" \nset ylabel \"Prevalence\" \n\
  set ter svg size 640, 480\nunset log y\nplot [%.f:%.f]  ", ageminpar, agemaxpar);
-         for (i=1; i<= nlstate+1 ; i ++){  /* nlstate +1 p11 p21 p.1 */
+         /* for (i=1; i<= nlstate+1 ; i ++){  /\* nlstate +1 p11 p21 p.1 *\/ */
+         istart=nlstate+1; /* Could be one if by state, but nlstate+1 is w.i projection only */
+         /*istart=1;*/ /* Could be one if by state, but nlstate+1 is w.i projection only */
+         for (i=istart; i<= nlstate+1 ; i ++){  /* nlstate +1 p11 p21 p.1 */
            /*#  V1  = 1  V2 =  0 yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
            /*#   1    2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
            /*# yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
            /*#   1       2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
-           if(i==1){
+           if(i==istart){
              fprintf(ficgp,"\"%s\"",subdirf2(fileresu,"F_"));
            }else{
              fprintf(ficgp,",\\\n '' ");
- Line 7270  set ter svg size 640, 480\nunset log y\n
+ Line 7522  set ter svg size 640, 480\nunset log y\n
              /*# V1  = 1 yearproj age p11 p21 p31 p.1 p12 p22 p32 p.2 p13 p23 p33 p.3 p14 p24 p34 p.4*/
              /*#  1    2        3   4   5  6    7  8   9   10  11  12  13  14  15  16  17  18 */
              fprintf(ficgp," u %d:(", ioffset);
-             if(i==nlstate+1)
+             if(i==nlstate+1){
-               fprintf(ficgp," $%d/(1.-$%d)) t 'pw.%d' with line ",      \
+               fprintf(ficgp," $%d/(1.-$%d)):1 t 'pw.%d' with line lc variable ",        \
                        ioffset+(cpt-1)*(nlstate+1)+1+(i-1),  ioffset+1+(i-1)+(nlstate+1)*nlstate,cpt );
-             else
+               fprintf(ficgp,",\\\n '' ");
+               fprintf(ficgp," u %d:(",ioffset);
+               fprintf(ficgp," (($1-$2) == %d ) ? $%d/(1.-$%d) : 1/0):1 with labels center not ", \
+                      offyear,                           \
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1),  ioffset+1+(i-1)+(nlstate+1)*nlstate );
+             }else
                fprintf(ficgp," $%d/(1.-$%d)) t 'p%d%d' with line ",      \
                        ioffset+(cpt-1)*(nlstate+1)+1+(i-1),  ioffset+1+(i-1)+(nlstate+1)*nlstate,i,cpt );
            }else{ /* more than 2 covariates */
-             if(cptcoveff ==1){
+             ioffset=2*cptcoveff+2; /* Age is in 4 or 6 or etc.*/
-               ioffset=4; /* Age is in 4 */
+             /*#  V1  = 1  V2 =  0 yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
-             }else{
+             /*#   1    2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
-               ioffset=6; /* Age is in 6 */
+             iyearc=ioffset-1;
-               /*#  V1  = 1  V2 =  0 yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
+             iagec=ioffset;
-               /*#   1    2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
-             }
              fprintf(ficgp," u %d:(",ioffset);
              kl=0;
              strcpy(gplotcondition,"(");
- Line 7305  set ter svg size 640, 480\nunset log y\n
+ Line 7560  set ter svg size 640, 480\nunset log y\n
              /*6+1+(i-1)+(nlstate+1)*nlstate; 6+1+(1-1) +(2+1)*2=13 */
              /* ''  u 6:(($1==1 && $2==0 && $3==2 && $4==0)? $9/(1.-$15) : 1/0):($5==2000? 3:2) t 'p.1' with line lc variable*/
              if(i==nlstate+1){
-               fprintf(ficgp,"%s ? $%d/(1.-$%d) : 1/0) t 'p.%d' with line ", gplotcondition, \
+               fprintf(ficgp,"%s ? $%d/(1.-$%d) : 1/0):%d t 'p.%d' with line lc variable", gplotcondition, \
-                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1),  ioffset+1+(i-1)+(nlstate+1)*nlstate,cpt );
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1),  ioffset+1+(i-1)+(nlstate+1)*nlstate,iyearc, cpt );
+               fprintf(ficgp,",\\\n '' ");
+               fprintf(ficgp," u %d:(",iagec);
+               fprintf(ficgp,"%s && (($%d-$%d) == %d ) ? $%d/(1.-$%d) : 1/0):%d with labels center not ", gplotcondition, \
+                       iyearc, iagec, offyear,                           \
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1),  ioffset+1+(i-1)+(nlstate+1)*nlstate, iyearc );
+ /*  '' u 6:(($1==1 && $2==0  && $3==2 && $4==0) && (($5-$6) == 1947) ? $10/(1.-$22) : 1/0):5 with labels center boxed not*/
              }else{
                fprintf(ficgp,"%s ? $%d/(1.-$%d) : 1/0) t 'p%d%d' with line ", gplotcondition, \
                        ioffset+(cpt-1)*(nlstate+1)+1+(i-1), ioffset +1+(i-1)+(nlstate+1)*nlstate,i,cpt );
- Line 7318  set ter svg size 640, 480\nunset log y\n
+ Line 7579  set ter svg size 640, 480\nunset log y\n
      } /* end covariate */
    } /* End if prevfcast */
+   if(backcast==1){
+     /* Back projection from cross-sectional to stable (mixed) for each covariate */
+     for (k1=1; k1<= m ; k1 ++) /* For each covariate combination if any */
+     for(nres=1; nres <= nresult; nres++){ /* For each resultline */
+       if(m != 1 && TKresult[nres]!= k1)
+         continue;
+       for (cpt=1; cpt<=nlstate ; cpt ++) { /* For each life state */
+         strcpy(gplotlabel,"(");
+         fprintf(ficgp,"\n#\n#\n#Back projection of prevalence to stable (mixed) back prevalence: 'BPROJ_' files, covariatecombination#=%d originstate=%d",k1, cpt);
+         for (k=1; k<=cptcoveff; k++){    /* For each correspondig covariate value  */
+           lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate value corresponding to k1 combination and kth covariate */
+           /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+           /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+           /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+           vlv= nbcode[Tvaraff[k]][lv];
+           fprintf(ficgp," V%d=%d ",Tvaraff[k],vlv);
+           sprintf(gplotlabel+strlen(gplotlabel)," V%d=%d ",Tvaraff[k],vlv);
+         }
+         for (k4=1; k4<= nsq; k4++){ /* For each selected (single) quantitative value */
+           fprintf(ficgp," V%d=%f ",Tvqresult[nres][k4],Tqresult[nres][k4]);
+           sprintf(gplotlabel+strlen(gplotlabel)," V%d=%f ",Tvqresult[nres][k4],Tqresult[nres][k4]);
+         }
+         strcpy(gplotlabel+strlen(gplotlabel),")");
+         fprintf(ficgp,"\n#\n");
+         if(invalidvarcomb[k1]){
+           fprintf(ficgp,"#Combination (%d) ignored because no cases \n",k1);
+           continue;
+         }
+         fprintf(ficgp,"# hbijx=backprobability over h years, hb.jx is weighted by observed prev at destination state\n ");
+         fprintf(ficgp,"\nset out \"%s_%d-%d-%d.svg\" \n",subdirf2(optionfilefiname,"PROJB_"),cpt,k1,nres);
+         fprintf(ficgp,"set label \"Origin alive state %d %s\" at graph 0.98,0.5 center rotate font \"Helvetica,12\"\n",cpt,gplotlabel);
+         fprintf(ficgp,"set xlabel \"Age\" \nset ylabel \"Prevalence\" \n\
+ set ter svg size 640, 480\nunset log y\nplot [%.f:%.f]  ", ageminpar, agemaxpar);
+         /* for (i=1; i<= nlstate+1 ; i ++){  /\* nlstate +1 p11 p21 p.1 *\/ */
+         istart=nlstate+1; /* Could be one if by state, but nlstate+1 is w.i projection only */
+         /*istart=1;*/ /* Could be one if by state, but nlstate+1 is w.i projection only */
+         for (i=istart; i<= nlstate+1 ; i ++){  /* nlstate +1 p11 p21 p.1 */
+           /*#  V1  = 1  V2 =  0 yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
+           /*#   1    2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
+           /*# yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
+           /*#   1       2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
+           if(i==istart){
+             fprintf(ficgp,"\"%s\"",subdirf2(fileresu,"FB_"));
+           }else{
+             fprintf(ficgp,",\\\n '' ");
+           }
+           if(cptcoveff ==0){ /* No covariate */
+             ioffset=2; /* Age is in 2 */
+             /*# yearproj age p11 p21 p31 p.1 p12 p22 p32 p.2 p13 p23 p33 p.3 p14 p24 p34 p.4*/
+             /*#   1       2   3   4   5  6    7  8   9   10  11  12  13  14  15  16  17  18 */
+             /*# V1  = 1 yearproj age p11 p21 p31 p.1 p12 p22 p32 p.2 p13 p23 p33 p.3 p14 p24 p34 p.4*/
+             /*#  1    2        3   4   5  6    7  8   9   10  11  12  13  14  15  16  17  18 */
+             fprintf(ficgp," u %d:(", ioffset);
+             if(i==nlstate+1){
+               fprintf(ficgp," $%d/(1.-$%d)):1 t 'bw%d' with line lc variable ", \
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1),  ioffset+1+(i-1)+(nlstate+1)*nlstate,cpt );
+               fprintf(ficgp,",\\\n '' ");
+               fprintf(ficgp," u %d:(",ioffset);
+               fprintf(ficgp," (($1-$2) == %d ) ? $%d : 1/0):1 with labels center not ", \
+                      offbyear,                          \
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1) );
+             }else
+               fprintf(ficgp," $%d/(1.-$%d)) t 'b%d%d' with line ",      \
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1),  ioffset+1+(i-1)+(nlstate+1)*nlstate,cpt,i );
+           }else{ /* more than 2 covariates */
+             ioffset=2*cptcoveff+2; /* Age is in 4 or 6 or etc.*/
+             /*#  V1  = 1  V2 =  0 yearproj age p11 p21 p.1 p12 p22 p.2 p13 p23 p.3*/
+             /*#   1    2   3    4    5      6  7   8   9   10   11 12  13   14  15 */
+             iyearc=ioffset-1;
+             iagec=ioffset;
+             fprintf(ficgp," u %d:(",ioffset);
+             kl=0;
+             strcpy(gplotcondition,"(");
+             for (k=1; k<=cptcoveff; k++){    /* For each covariate writing the chain of conditions */
+               lv= decodtabm(k1,k,cptcoveff); /* Should be the covariate value corresponding to combination k1 and covariate k */
+               /* decodtabm(1,1,4) = 1 because h=1  k= (1) 1  1  1 */
+               /* decodtabm(1,2,4) = 1 because h=1  k=  1 (1) 1  1 */
+               /* decodtabm(13,3,4)= 2 because h=13 k=  1  1 (2) 2 */
+               vlv= nbcode[Tvaraff[k]][lv]; /* Value of the modality of Tvaraff[k] */
+               kl++;
+               sprintf(gplotcondition+strlen(gplotcondition),"$%d==%d && $%d==%d " ,kl,Tvaraff[k], kl+1, nbcode[Tvaraff[k]][lv]);
+               kl++;
+               if(k <cptcoveff && cptcoveff>1)
+                 sprintf(gplotcondition+strlen(gplotcondition)," && ");
+             }
+             strcpy(gplotcondition+strlen(gplotcondition),")");
+             /* kl=6+(cpt-1)*(nlstate+1)+1+(i-1); /\* 6+(1-1)*(2+1)+1+(1-1)=7, 6+(2-1)(2+1)+1+(1-1)=10 *\/ */
+             /*6+(cpt-1)*(nlstate+1)+1+(i-1)+(nlstate+1)*nlstate; 6+(1-1)*(2+1)+1+(1-1) +(2+1)*2=13 */
+             /*6+1+(i-1)+(nlstate+1)*nlstate; 6+1+(1-1) +(2+1)*2=13 */
+             /* ''  u 6:(($1==1 && $2==0 && $3==2 && $4==0)? $9/(1.-$15) : 1/0):($5==2000? 3:2) t 'p.1' with line lc variable*/
+             if(i==nlstate+1){
+               fprintf(ficgp,"%s ? $%d : 1/0):%d t 'bw%d' with line lc variable", gplotcondition, \
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1),iyearc,cpt );
+               fprintf(ficgp,",\\\n '' ");
+               fprintf(ficgp," u %d:(",iagec);
+               /* fprintf(ficgp,"%s && (($5-$6) == %d ) ? $%d/(1.-$%d) : 1/0):5 with labels center not ", gplotcondition, \ */
+               fprintf(ficgp,"%s && (($%d-$%d) == %d ) ? $%d : 1/0):%d with labels center not ", gplotcondition, \
+                       iyearc,iagec,offbyear,                            \
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1), iyearc );
+ /*  '' u 6:(($1==1 && $2==0  && $3==2 && $4==0) && (($5-$6) == 1947) ? $10/(1.-$22) : 1/0):5 with labels center boxed not*/
+             }else{
+               /* fprintf(ficgp,"%s ? $%d/(1.-$%d) : 1/0) t 'p%d%d' with line ", gplotcondition, \ */
+               fprintf(ficgp,"%s ? $%d : 1/0) t 'b%d%d' with line ", gplotcondition, \
+                       ioffset+(cpt-1)*(nlstate+1)+1+(i-1), cpt,i );
+             }
+           } /* end if covariate */
+         } /* nlstate */
+         fprintf(ficgp,"\nset out; unset label;\n");
+       } /* end cpt state*/
+     } /* end covariate */
+   } /* End if backcast */
    /* 9eme writing MLE parameters */
    fprintf(ficgp,"\n##############\n#9eme MLE estimated parameters\n#############\n");
- Line 7424  set ter svg size 640, 480\nunset log y\n
+ Line 7800  set ter svg size 640, 480\nunset log y\n
              /* for(j=3; j <=ncovmodel-nagesqr; j++) { */
              for(j=1; j <=cptcovt; j++) { /* For each covariate of the simplified model */
                /* printf("Tage[%d]=%d, j=%d\n", ij, Tage[ij], j); */
-               if(j==Tage[ij]) { /* Product by age */
+               if(cptcovage >0){ /* V5+V4+V3+V4*V3+V5*age+V2+V1*V2+V1*age+V1, 2 V5 and V1 */
-                 if(ij <=cptcovage) { /* V5+V4+V3+V4*V3+V5*age+V2+V1*V2+V1*age+V1, 2 V5 and V1 */
+                 if(j==Tage[ij]) { /* Product by age  To be looked at!!*/
-                   if(DummyV[j]==0){
+                   if(ij <=cptcovage) { /* V5+V4+V3+V4*V3+V5*age+V2+V1*V2+V1*age+V1, 2 V5 and V1 */
-                     fprintf(ficgp,"+p%d*%d*x",i+j+2+nagesqr-1,Tinvresult[nres][Tvar[j]]);;
+                     if(DummyV[j]==0){
-                   }else{ /* quantitative */
+                       fprintf(ficgp,"+p%d*%d*x",i+j+2+nagesqr-1,Tinvresult[nres][Tvar[j]]);;
-                     fprintf(ficgp,"+p%d*%f*x",i+j+2+nagesqr-1,Tqinvresult[nres][Tvar[j]]); /* Tqinvresult in decoderesult */
+                     }else{ /* quantitative */
-                     /* fprintf(ficgp,"+p%d*%d*x",i+j+nagesqr-1,nbcode[Tvar[j-2]][codtabm(k1,Tvar[j-2])]); */
+                       fprintf(ficgp,"+p%d*%f*x",i+j+2+nagesqr-1,Tqinvresult[nres][Tvar[j]]); /* Tqinvresult in decoderesult */
-                   }
+                       /* fprintf(ficgp,"+p%d*%d*x",i+j+nagesqr-1,nbcode[Tvar[j-2]][codtabm(k1,Tvar[j-2])]); */
-                   ij++;
-                 }
-               }else if(j==Tprod[ijp]) { /* */
-                 /* printf("Tprod[%d]=%d, j=%d\n", ij, Tprod[ijp], j); */
-                 if(ijp <=cptcovprod) { /* Product */
-                   if(DummyV[Tvard[ijp][1]]==0){/* Vn is dummy */
-                     if(DummyV[Tvard[ijp][2]]==0){/* Vn and Vm are dummy */
-                       /* fprintf(ficgp,"+p%d*%d*%d",i+j+2+nagesqr-1,nbcode[Tvard[ijp][1]][codtabm(k1,j)],nbcode[Tvard[ijp][2]][codtabm(k1,j)]); */
-                       fprintf(ficgp,"+p%d*%d*%d",i+j+2+nagesqr-1,Tinvresult[nres][Tvard[ijp][1]],Tinvresult[nres][Tvard[ijp][2]]);
-                     }else{ /* Vn is dummy and Vm is quanti */
-                       /* fprintf(ficgp,"+p%d*%d*%f",i+j+2+nagesqr-1,nbcode[Tvard[ijp][1]][codtabm(k1,j)],Tqinvresult[nres][Tvard[ijp][2]]); */
-                       fprintf(ficgp,"+p%d*%d*%f",i+j+2+nagesqr-1,Tinvresult[nres][Tvard[ijp][1]],Tqinvresult[nres][Tvard[ijp][2]]);
                      }
-                   }else{ /* Vn*Vm Vn is quanti */
+                     ij++;
-                     if(DummyV[Tvard[ijp][2]]==0){
+                   }
-                       fprintf(ficgp,"+p%d*%d*%f",i+j+2+nagesqr-1,Tinvresult[nres][Tvard[ijp][2]],Tqinvresult[nres][Tvard[ijp][1]]);
+                 }
-                     }else{ /* Both quanti */
+               }else if(cptcovprod >0){
-                       fprintf(ficgp,"+p%d*%f*%f",i+j+2+nagesqr-1,Tqinvresult[nres][Tvard[ijp][1]],Tqinvresult[nres][Tvard[ijp][2]]);
+                 if(j==Tprod[ijp]) { /* */
+                   /* printf("Tprod[%d]=%d, j=%d\n", ij, Tprod[ijp], j); */
+                   if(ijp <=cptcovprod) { /* Product */
+                     if(DummyV[Tvard[ijp][1]]==0){/* Vn is dummy */
+                       if(DummyV[Tvard[ijp][2]]==0){/* Vn and Vm are dummy */
+                         /* fprintf(ficgp,"+p%d*%d*%d",i+j+2+nagesqr-1,nbcode[Tvard[ijp][1]][codtabm(k1,j)],nbcode[Tvard[ijp][2]][codtabm(k1,j)]); */
+                         fprintf(ficgp,"+p%d*%d*%d",i+j+2+nagesqr-1,Tinvresult[nres][Tvard[ijp][1]],Tinvresult[nres][Tvard[ijp][2]]);
+                       }else{ /* Vn is dummy and Vm is quanti */
+                         /* fprintf(ficgp,"+p%d*%d*%f",i+j+2+nagesqr-1,nbcode[Tvard[ijp][1]][codtabm(k1,j)],Tqinvresult[nres][Tvard[ijp][2]]); */
+                         fprintf(ficgp,"+p%d*%d*%f",i+j+2+nagesqr-1,Tinvresult[nres][Tvard[ijp][1]],Tqinvresult[nres][Tvard[ijp][2]]);
+                       }
+                     }else{ /* Vn*Vm Vn is quanti */
+                       if(DummyV[Tvard[ijp][2]]==0){
+                         fprintf(ficgp,"+p%d*%d*%f",i+j+2+nagesqr-1,Tinvresult[nres][Tvard[ijp][2]],Tqinvresult[nres][Tvard[ijp][1]]);
+                       }else{ /* Both quanti */
+                         fprintf(ficgp,"+p%d*%f*%f",i+j+2+nagesqr-1,Tqinvresult[nres][Tvard[ijp][1]],Tqinvresult[nres][Tvard[ijp][2]]);
+                       }
                      }
+                     ijp++;
                    }
-                   ijp++;
+                 } /* end Tprod */
-                 }
                } else{  /* simple covariate */
                  /* fprintf(ficgp,"+p%d*%d",i+j+2+nagesqr-1,nbcode[Tvar[j]][codtabm(k1,j)]); /\* Valgrind bug nbcode *\/ */
                  if(Dummy[j]==0){
- Line 7481  set ter svg size 640, 480\nunset log y\n
+ Line 7861  set ter svg size 640, 480\nunset log y\n
                ij=1;
                for(j=3; j <=ncovmodel-nagesqr; j++){
-                 if((j-2)==Tage[ij]) { /* Bug valgrind */
+                  if(cptcovage >0){
-                   if(ij <=cptcovage) { /* Bug valgrind */
+                    if((j-2)==Tage[ij]) { /* Bug valgrind */
-                     fprintf(ficgp,"+p%d*%d*x",k3+(cpt-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(k1,j-2)]);
+                      if(ij <=cptcovage) { /* Bug valgrind */
-                     /* fprintf(ficgp,"+p%d*%d*x",k3+(cpt-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(k1,Tvar[j-2])]); */
+                        fprintf(ficgp,"+p%d*%d*x",k3+(cpt-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(k1,j-2)]);
-                     ij++;
+                        /* fprintf(ficgp,"+p%d*%d*x",k3+(cpt-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(k1,Tvar[j-2])]); */
-                   }
+                        ij++;
-                 }
+                      }
-                 else
+                    }
-                   fprintf(ficgp,"+p%d*%d",k3+(cpt-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(k1,j-2)]);/* Valgrind bug nbcode */
+                  }else
+                    fprintf(ficgp,"+p%d*%d",k3+(cpt-1)*ncovmodel+1+j-2+nagesqr,nbcode[Tvar[j-2]][codtabm(k1,j-2)]);/* Valgrind bug nbcode */
                }
                fprintf(ficgp,")");
              }
- Line 7526  set ter svg size 640, 480\nunset log y\n
+ Line 7907  set ter svg size 640, 480\nunset log y\n
     int mobilavrange, mob;
     int iage=0;
-    double sum=0.;
+    double sum=0., sumr=0.;
     double age;
-    double *sumnewp, *sumnewm;
+    double *sumnewp, *sumnewm, *sumnewmr;
-    double *agemingood, *agemaxgood; /* Currently identical for all covariates */
+    double *agemingood, *agemaxgood;
+    double *agemingoodr, *agemaxgoodr;
     /* modcovmax=2*cptcoveff;/\* Max number of modalities. We suppose  */
- Line 7537  set ter svg size 640, 480\nunset log y\n
+ Line 7919  set ter svg size 640, 480\nunset log y\n
     sumnewp = vector(1,ncovcombmax);
     sumnewm = vector(1,ncovcombmax);
+    sumnewmr = vector(1,ncovcombmax);
     agemingood = vector(1,ncovcombmax);
+    agemingoodr = vector(1,ncovcombmax);
     agemaxgood = vector(1,ncovcombmax);
+    agemaxgoodr = vector(1,ncovcombmax);
     for (cptcod=1;cptcod<=ncovcombmax;cptcod++){
-      sumnewm[cptcod]=0.;
+      sumnewm[cptcod]=0.; sumnewmr[cptcod]=0.;
       sumnewp[cptcod]=0.;
-      agemingood[cptcod]=0;
+      agemingood[cptcod]=0, agemingoodr[cptcod]=0;
-      agemaxgood[cptcod]=0;
+      agemaxgood[cptcod]=0, agemaxgoodr[cptcod]=0;
     }
     if (cptcovn<1) ncovcombmax=1; /* At least 1 pass */
-    if(mobilav==1||mobilav ==3 ||mobilav==5 ||mobilav== 7){
+    if(mobilav==-1 || mobilav==1||mobilav ==3 ||mobilav==5 ||mobilav== 7){
-      if(mobilav==1) mobilavrange=5; /* default */
+      if(mobilav==1 || mobilav==-1) mobilavrange=5; /* default */
       else mobilavrange=mobilav;
       for (age=bage; age<=fage; age++)
         for (i=1; i<=nlstate;i++)
- Line 7561  set ter svg size 640, 480\nunset log y\n
+ Line 7946  set ter svg size 640, 480\nunset log y\n
       */
       for (mob=3;mob <=mobilavrange;mob=mob+2){
         for (age=bage+(mob-1)/2; age<=fage-(mob-1)/2; age++){
-          for (i=1; i<=nlstate;i++){
+          for (cptcod=1;cptcod<=ncovcombmax;cptcod++){
-            for (cptcod=1;cptcod<=ncovcombmax;cptcod++){
+            sumnewm[cptcod]=0.;
+            for (i=1; i<=nlstate;i++){
               mobaverage[(int)age][i][cptcod] =probs[(int)age][i][cptcod];
               for (cpt=1;cpt<=(mob-1)/2;cpt++){
                 mobaverage[(int)age][i][cptcod] +=probs[(int)age-cpt][i][cptcod];
                 mobaverage[(int)age][i][cptcod] +=probs[(int)age+cpt][i][cptcod];
               }
               mobaverage[(int)age][i][cptcod]=mobaverage[(int)age][i][cptcod]/mob;
-            }
+              sumnewm[cptcod]+=mobaverage[(int)age][i][cptcod];
-          }
+            } /* end i */
+            if(sumnewm[cptcod] >1.e-3) mobaverage[(int)age][i][cptcod]=mobaverage[(int)age][i][cptcod]/sumnewm[cptcod]; /* Rescaling to sum one */
+          } /* end cptcod */
         }/* end age */
       }/* end mob */
-    }else
+    }else{
+      printf("Error internal in movingaverage, mobilav=%d.\n",mobilav);
       return -1;
-    for (cptcod=1;cptcod<=ncovcombmax;cptcod++){
+    }
+    for (cptcod=1;cptcod<=ncovcombmax;cptcod++){ /* for each combination */
       /* for (age=bage+(mob-1)/2; age<=fage-(mob-1)/2; age++){ */
       if(invalidvarcomb[cptcod]){
         printf("\nCombination (%d) ignored because no cases \n",cptcod);
         continue;
       }
-      agemingood[cptcod]=fage-(mob-1)/2;
+      for (age=fage-(mob-1)/2; age>=bage+(mob-1)/2; age--){ /*looking for the youngest and oldest good age */
-      for (age=fage-(mob-1)/2; age>=bage; age--){/* From oldest to youngest, finding the youngest wrong */
         sumnewm[cptcod]=0.;
+        sumnewmr[cptcod]=0.;
         for (i=1; i<=nlstate;i++){
           sumnewm[cptcod]+=mobaverage[(int)age][i][cptcod];
+          sumnewmr[cptcod]+=probs[(int)age][i][cptcod];
+        }
+        if(fabs(sumnewmr[cptcod] - 1.) <= 1.e-3) { /* good without smoothing */
+          agemingoodr[cptcod]=age;
         }
         if(fabs(sumnewm[cptcod] - 1.) <= 1.e-3) { /* good */
-          agemingood[cptcod]=age;
+            agemingood[cptcod]=age;
-        }else{ /* bad */
+        }
-          for (i=1; i<=nlstate;i++){
+      } /* age */
-            mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemingood[cptcod]][i][cptcod];
+      for (age=bage+(mob-1)/2; age<=fage-(mob-1)/2; age++){ /*looking for the youngest and oldest good age */
-          } /* i */
-        } /* end bad */
-      }/* age */
-      sum=0.;
-      for (i=1; i<=nlstate;i++){
-        sum+=mobaverage[(int)agemingood[cptcod]][i][cptcod];
-      }
-      if(fabs(sum - 1.) > 1.e-3) { /* bad */
-        printf("For this combination of covariate cptcod=%d, we can't get a smoothed prevalence which sums to one at any descending age!\n",cptcod);
-        /* for (i=1; i<=nlstate;i++){ */
-        /*   mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemingood[cptcod]][i][cptcod]; */
-        /* } /\* i *\/ */
-      } /* end bad */
-      /* else{ /\* We found some ages summing to one, we will smooth the oldest *\/ */
-      /* From youngest, finding the oldest wrong */
-      agemaxgood[cptcod]=bage+(mob-1)/2;
-      for (age=bage+(mob-1)/2; age<=fage; age++){
         sumnewm[cptcod]=0.;
+        sumnewmr[cptcod]=0.;
         for (i=1; i<=nlstate;i++){
           sumnewm[cptcod]+=mobaverage[(int)age][i][cptcod];
+          sumnewmr[cptcod]+=probs[(int)age][i][cptcod];
+        }
+        if(fabs(sumnewmr[cptcod] - 1.) <= 1.e-3) { /* good without smoothing */
+          agemaxgoodr[cptcod]=age;
         }
         if(fabs(sumnewm[cptcod] - 1.) <= 1.e-3) { /* good */
           agemaxgood[cptcod]=age;
-        }else{ /* bad */
+        }
-          for (i=1; i<=nlstate;i++){
+      } /* age */
-            mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemaxgood[cptcod]][i][cptcod];
+      /* Thus we have agemingood and agemaxgood as well as goodr for raw (preobs) */
-          } /* i */
+      /* but they will change */
+      for (age=fage-(mob-1)/2; age>=bage; age--){/* From oldest to youngest, filling up to the youngest */
+        sumnewm[cptcod]=0.;
+        sumnewmr[cptcod]=0.;
+        for (i=1; i<=nlstate;i++){
+          sumnewm[cptcod]+=mobaverage[(int)age][i][cptcod];
+          sumnewmr[cptcod]+=probs[(int)age][i][cptcod];
+        }
+        if(mobilav==-1){ /* Forcing raw ages if good else agemingood */
+          if(fabs(sumnewmr[cptcod] - 1.) <= 1.e-3) { /* good without smoothing */
+            agemaxgoodr[cptcod]=age;  /* age min */
+            for (i=1; i<=nlstate;i++)
+              mobaverage[(int)age][i][cptcod]=probs[(int)age][i][cptcod];
+          }else{ /* bad we change the value with the values of good ages */
+            for (i=1; i<=nlstate;i++){
+              mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemaxgoodr[cptcod]][i][cptcod];
+            } /* i */
+          } /* end bad */
+        }else{
+          if(fabs(sumnewm[cptcod] - 1.) <= 1.e-3) { /* good */
+            agemaxgood[cptcod]=age;
+          }else{ /* bad we change the value with the values of good ages */
+            for (i=1; i<=nlstate;i++){
+              mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemaxgood[cptcod]][i][cptcod];
+            } /* i */
+          } /* end bad */
+        }/* end else */
+        sum=0.;sumr=0.;
+        for (i=1; i<=nlstate;i++){
+          sum+=mobaverage[(int)age][i][cptcod];
+          sumr+=probs[(int)age][i][cptcod];
+        }
+        if(fabs(sum - 1.) > 1.e-3) { /* bad */
+          printf("Moving average A1: For this combination of covariate cptcod=%d, we can't get a smoothed prevalence which sums to one (%f) at any descending age! age=%d, could you increase bage=%d\n",cptcod,sumr, (int)age, (int)bage);
+        } /* end bad */
+        /* else{ /\* We found some ages summing to one, we will smooth the oldest *\/ */
+        if(fabs(sumr - 1.) > 1.e-3) { /* bad */
+          printf("Moving average A2: For this combination of covariate cptcod=%d, the raw prevalence doesn't sums to one (%f) even with smoothed values at young ages! age=%d, could you increase bage=%d\n",cptcod,sumr, (int)age, (int)bage);
         } /* end bad */
       }/* age */
-      sum=0.;
-      for (i=1; i<=nlstate;i++){
+      for (age=bage+(mob-1)/2; age<=fage; age++){/* From youngest, finding the oldest wrong */
-        sum+=mobaverage[(int)agemaxgood[cptcod]][i][cptcod];
+        sumnewm[cptcod]=0.;
-      }
+        sumnewmr[cptcod]=0.;
-      if(fabs(sum - 1.) > 1.e-3) { /* bad */
+        for (i=1; i<=nlstate;i++){
-        printf("For this combination of covariate cptcod=%d, we can't get a smoothed prevalence which sums to one at any ascending age!\n",cptcod);
+          sumnewm[cptcod]+=mobaverage[(int)age][i][cptcod];
-        /* for (i=1; i<=nlstate;i++){ */
+          sumnewmr[cptcod]+=probs[(int)age][i][cptcod];
-        /*   mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemingood[cptcod]][i][cptcod]; */
+        }
-        /* } /\* i *\/ */
+        if(mobilav==-1){ /* Forcing raw ages if good else agemingood */
-      } /* end bad */
+          if(fabs(sumnewmr[cptcod] - 1.) <= 1.e-3) { /* good */
+            agemingoodr[cptcod]=age;
+            for (i=1; i<=nlstate;i++)
+              mobaverage[(int)age][i][cptcod]=probs[(int)age][i][cptcod];
+          }else{ /* bad we change the value with the values of good ages */
+            for (i=1; i<=nlstate;i++){
+              mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemingoodr[cptcod]][i][cptcod];
+            } /* i */
+          } /* end bad */
+        }else{
+          if(fabs(sumnewm[cptcod] - 1.) <= 1.e-3) { /* good */
+            agemingood[cptcod]=age;
+          }else{ /* bad */
+            for (i=1; i<=nlstate;i++){
+              mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemingood[cptcod]][i][cptcod];
+            } /* i */
+          } /* end bad */
+        }/* end else */
+        sum=0.;sumr=0.;
+        for (i=1; i<=nlstate;i++){
+          sum+=mobaverage[(int)age][i][cptcod];
+          sumr+=mobaverage[(int)age][i][cptcod];
+        }
+        if(fabs(sum - 1.) > 1.e-3) { /* bad */
+          printf("Moving average B1: For this combination of covariate cptcod=%d, we can't get a smoothed prevalence which sums to one (%f) at any descending age! age=%d, could you decrease fage=%d?\n",cptcod, sum, (int) age, (int)fage);
+        } /* end bad */
+        /* else{ /\* We found some ages summing to one, we will smooth the oldest *\/ */
+        if(fabs(sumr - 1.) > 1.e-3) { /* bad */
+          printf("Moving average B2: For this combination of covariate cptcod=%d, the raw prevalence doesn't sums to one (%f) even with smoothed values at young ages! age=%d, could you increase fage=%d\n",cptcod,sumr, (int)age, (int)fage);
+        } /* end bad */
+      }/* age */
       for (age=bage; age<=fage; age++){
         /* printf("%d %d ", cptcod, (int)age); */
- Line 7646  set ter svg size 640, 480\nunset log y\n
+ Line 8097  set ter svg size 640, 480\nunset log y\n
       }
       /* printf("\n"); */
       /* } */
       /* brutal averaging */
-      for (i=1; i<=nlstate;i++){
+      /* for (i=1; i<=nlstate;i++){ */
-        for (age=1; age<=bage; age++){
+      /*   for (age=1; age<=bage; age++){ */
-          mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemingood[cptcod]][i][cptcod];
+      /*          mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemingood[cptcod]][i][cptcod]; */
-          /* printf("age=%d i=%d cptcod=%d mobaverage=%.4f \n",(int)age,i, cptcod, mobaverage[(int)age][i][cptcod]); */
+      /*          /\* printf("age=%d i=%d cptcod=%d mobaverage=%.4f \n",(int)age,i, cptcod, mobaverage[(int)age][i][cptcod]); *\/ */
-        }
+      /*   }      */
-        for (age=fage; age<=AGESUP; age++){
+      /*   for (age=fage; age<=AGESUP; age++){ */
-          mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemaxgood[cptcod]][i][cptcod];
+      /*          mobaverage[(int)age][i][cptcod]=mobaverage[(int)agemaxgood[cptcod]][i][cptcod]; */
-          /* printf("age=%d i=%d cptcod=%d mobaverage=%.4f \n",(int)age,i, cptcod, mobaverage[(int)age][i][cptcod]); */
+      /*          /\* printf("age=%d i=%d cptcod=%d mobaverage=%.4f \n",(int)age,i, cptcod, mobaverage[(int)age][i][cptcod]); *\/ */
-        }
+      /*   } */
-      } /* end i status */
+      /* } /\* end i status *\/ */
-      for (i=nlstate+1; i<=nlstate+ndeath;i++){
+      /* for (i=nlstate+1; i<=nlstate+ndeath;i++){ */
-        for (age=1; age<=AGESUP; age++){
+      /*   for (age=1; age<=AGESUP; age++){ */
-          /*printf("i=%d, age=%d, cptcod=%d\n",i, (int)age, cptcod);*/
+      /*          /\*printf("i=%d, age=%d, cptcod=%d\n",i, (int)age, cptcod);*\/ */
-          mobaverage[(int)age][i][cptcod]=0.;
+      /*          mobaverage[(int)age][i][cptcod]=0.; */
-        }
+      /*   } */
-      }
+      /* } */
     }/* end cptcod */
-    free_vector(sumnewm,1, ncovcombmax);
+    free_vector(agemaxgoodr,1, ncovcombmax);
-    free_vector(sumnewp,1, ncovcombmax);
     free_vector(agemaxgood,1, ncovcombmax);
     free_vector(agemingood,1, ncovcombmax);
+    free_vector(agemingoodr,1, ncovcombmax);
+    free_vector(sumnewmr,1, ncovcombmax);
+    free_vector(sumnewm,1, ncovcombmax);
+    free_vector(sumnewp,1, ncovcombmax);
     return 0;
   }/* End movingaverage */
  /************** Forecasting ******************/
-  void prevforecast(char fileres[], double anproj1, double mproj1, double jproj1, double ageminpar, double agemax, double dateprev1, double dateprev2, int mobilav, double bage, double fage, int firstpass, int lastpass, double anproj2, double p[], int cptcoveff){
+  void prevforecast(char fileres[], double anproj1, double mproj1, double jproj1, double ageminpar, double agemax, double dateprev1, double dateprev2, int mobilav, double ***prev, double bage, double fage, int firstpass, int lastpass, double anproj2, double p[], int cptcoveff){
    /* proj1, year, month, day of starting projection
       agemin, agemax range of age
       dateprev1 dateprev2 range of dates during which prevalence is computed
       anproj2 year of en of projection (same day and month as proj1).
    */
-    int yearp, stepsize, hstepm, nhstepm, j, k, cptcod, i, h, i1, k4, nres=0;
+   int yearp, stepsize, hstepm, nhstepm, j, k, cptcod, i, h, i1, k4, nres=0;
    double agec; /* generic age */
    double agelim, ppij, yp,yp1,yp2,jprojmean,mprojmean,anprojmean;
    double *popeffectif,*popcount;
- Line 7712  set ter svg size 640, 480\nunset log y\n
+ Line 8167  set ter svg size 640, 480\nunset log y\n
    if(estepm < stepm){
      printf ("Problem %d lower than %d\n",estepm, stepm);
    }
-   else  hstepm=estepm;
+   else{
+     hstepm=estepm;
+   }
+   if(estepm > stepm){ /* Yes every two year */
+     stepsize=2;
+   }
    hstepm=hstepm/stepm;
    yp1=modf(dateintmean,&yp);/* extracts integral of datemean in yp  and
- Line 7757  set ter svg size 640, 480\nunset log y\n
+ Line 8217  set ter svg size 640, 480\nunset log y\n
      for (yearp=0; yearp<=(anproj2-anproj1);yearp +=stepsize) {
        fprintf(ficresf,"\n");
        fprintf(ficresf,"\n# Forecasting at date %.lf/%.lf/%.lf ",jproj1,mproj1,anproj1+yearp);
-       for (agec=fage; agec>=(ageminpar-1); agec--){
+       /* for (agec=fage; agec>=(ageminpar-1); agec--){  */
+       for (agec=fage; agec>=(bage); agec--){
          nhstepm=(int) rint((agelim-agec)*YEARM/stepm);
          nhstepm = nhstepm/hstepm;
          p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
          oldm=oldms;savm=savms;
+         /* We compute pii at age agec over nhstepm);*/
          hpxij(p3mat,nhstepm,agec,hstepm,p,nlstate,stepm,oldm,savm, k,nres);
+         /* Then we print p3mat for h corresponding to the right agec+h*stepms=yearp */
          for (h=0; h<=nhstepm; h++){
            if (h*hstepm/YEARM*stepm ==yearp) {
-             fprintf(ficresf,"\n");
+             break;
-             for(j=1;j<=cptcoveff;j++)
+           }
-               fprintf(ficresf,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         }
-             fprintf(ficresf,"%.f %.f ",anproj1+yearp,agec+h*hstepm/YEARM*stepm);
+         fprintf(ficresf,"\n");
-           }
+         for(j=1;j<=cptcoveff;j++)
-           for(j=1; j<=nlstate+ndeath;j++) {
+           fprintf(ficresf,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-             ppij=0.;
+         fprintf(ficresf,"%.f %.f ",anproj1+yearp,agec+h*hstepm/YEARM*stepm);
-             for(i=1; i<=nlstate;i++) {
-               if (mobilav==1)
+         for(j=1; j<=nlstate+ndeath;j++) {
-                 ppij=ppij+p3mat[i][j][h]*mobaverage[(int)agec][i][k];
+           ppij=0.;
-               else {
+           for(i=1; i<=nlstate;i++) {
-                 ppij=ppij+p3mat[i][j][h]*probs[(int)(agec)][i][k];
+             /* if (mobilav>=1)  */
-               }
+             ppij=ppij+p3mat[i][j][h]*prev[(int)agec][i][k];
-               if (h*hstepm/YEARM*stepm== yearp) {
+             /* else { */ /* even if mobilav==-1 we use mobaverage */
-                 fprintf(ficresf," %.3f", p3mat[i][j][h]);
+             /*  ppij=ppij+p3mat[i][j][h]*probs[(int)(agec)][i][k]; */
-               }
+             /* } */
-             } /* end i */
+             fprintf(ficresf," %.3f", p3mat[i][j][h]);
-             if (h*hstepm/YEARM*stepm==yearp) {
+           } /* end i */
-               fprintf(ficresf," %.3f", ppij);
+           fprintf(ficresf," %.3f", ppij);
-             }
+         }/* end j */
-           }/* end j */
-         } /* end h */
          free_ma3x(p3mat,1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
        } /* end agec */
+       /* diffyear=(int) anproj1+yearp-ageminpar-1; */
+       /*printf("Prevforecast %d+%d-%d=diffyear=%d\n",(int) anproj1, (int)yearp,(int)ageminpar,(int) anproj1-(int)ageminpar);*/
      } /* end yearp */
    } /* end  k */
- Line 7799  set ter svg size 640, 480\nunset log y\n
+ Line 8261  set ter svg size 640, 480\nunset log y\n
  }
- /* /\************** Back Forecasting ******************\/ */
+ /************** Back Forecasting ******************/
- /* void prevbackforecast(char fileres[], double anback1, double mback1, double jback1, double ageminpar, double agemax, double dateprev1, double dateprev2, int mobilav, double bage, double fage, int firstpass, int lastpass, double anback2, double p[], int cptcoveff){ */
+  void prevbackforecast(char fileres[], double ***prevacurrent, double anback1, double mback1, double jback1, double ageminpar, double agemax, double dateprev1, double dateprev2, int mobilav, double bage, double fage, int firstpass, int lastpass, double anback2, double p[], int cptcoveff){
- /*   /\* back1, year, month, day of starting backection  */
+   /* back1, year, month, day of starting backection
- /*      agemin, agemax range of age */
+      agemin, agemax range of age
- /*      dateprev1 dateprev2 range of dates during which prevalence is computed */
+      dateprev1 dateprev2 range of dates during which prevalence is computed
- /*      anback2 year of en of backection (same day and month as back1). */
+      anback2 year of end of backprojection (same day and month as back1).
- /*   *\/ */
+      prevacurrent and prev are prevalences.
- /*   int yearp, stepsize, hstepm, nhstepm, j, k, cptcod, i, h, i1; */
+   */
- /*   double agec; /\* generic age *\/ */
+   int yearp, stepsize, hstepm, nhstepm, j, k, cptcod, i, h, i1, k4, nres=0;
- /*   double agelim, ppij, yp,yp1,yp2,jprojmean,mprojmean,anprojmean; */
+   double agec; /* generic age */
- /*   double *popeffectif,*popcount; */
+   double agelim, ppij, ppi, yp,yp1,yp2,jprojmean,mprojmean,anprojmean;
- /*   double ***p3mat; */
+   double *popeffectif,*popcount;
- /*   /\* double ***mobaverage; *\/ */
+   double ***p3mat;
- /*   char fileresfb[FILENAMELENGTH]; */
+   /* double ***mobaverage; */
+   char fileresfb[FILENAMELENGTH];
- /*   agelim=AGESUP; */
- /*   /\* Compute observed prevalence between dateprev1 and dateprev2 by counting the number of people */
+   agelim=AGEINF;
- /*      in each health status at the date of interview (if between dateprev1 and dateprev2). */
+   /* Compute observed prevalence between dateprev1 and dateprev2 by counting the number of people
- /*      We still use firstpass and lastpass as another selection. */
+      in each health status at the date of interview (if between dateprev1 and dateprev2).
- /*   *\/ */
+      We still use firstpass and lastpass as another selection.
- /*   /\* freqsummary(fileres, agemin, agemax, s, agev, nlstate, imx,Tvaraff,nbcode, ncodemax,mint,anint,strstart,\ *\/ */
+   */
- /*   /\*              firstpass, lastpass,  stepm,  weightopt, model); *\/ */
+   /* freqsummary(fileres, agemin, agemax, s, agev, nlstate, imx,Tvaraff,nbcode, ncodemax,mint,anint,strstart,\ */
- /*   prevalence(probs, ageminpar, agemax, s, agev, nlstate, imx, Tvar, nbcode, ncodemax, mint, anint, dateprev1, dateprev2, firstpass, lastpass); */
+   /*          firstpass, lastpass,  stepm,  weightopt, model); */
- /*   strcpy(fileresfb,"FB_");  */
+   /*Do we need to compute prevalence again?*/
- /*   strcat(fileresfb,fileresu); */
- /*   if((ficresfb=fopen(fileresfb,"w"))==NULL) { */
+   /* prevalence(probs, ageminpar, agemax, s, agev, nlstate, imx, Tvar, nbcode, ncodemax, mint, anint, dateprev1, dateprev2, firstpass, lastpass); */
- /*     printf("Problem with back forecast resultfile: %s\n", fileresfb); */
- /*     fprintf(ficlog,"Problem with back forecast resultfile: %s\n", fileresfb); */
- /*   } */
- /*   printf("Computing back forecasting: result on file '%s', please wait... \n", fileresfb); */
- /*   fprintf(ficlog,"Computing back forecasting: result on file '%s', please wait... \n", fileresfb); */
- /*   if (cptcoveff==0) ncodemax[cptcoveff]=1; */
- /*   /\* if (mobilav!=0) { *\/ */
- /*   /\*   mobaverage= ma3x(1, AGESUP,1,NCOVMAX, 1,NCOVMAX); *\/ */
- /*   /\*   if (movingaverage(probs, ageminpar, fage, mobaverage,mobilav)!=0){ *\/ */
- /*   /\*     fprintf(ficlog," Error in movingaverage mobilav=%d\n",mobilav); *\/ */
- /*   /\*     printf(" Error in movingaverage mobilav=%d\n",mobilav); *\/ */
- /*   /\*   } *\/ */
- /*   /\* } *\/ */
- /*   stepsize=(int) (stepm+YEARM-1)/YEARM; */
- /*   if (stepm<=12) stepsize=1; */
- /*   if(estepm < stepm){ */
- /*     printf ("Problem %d lower than %d\n",estepm, stepm); */
- /*   } */
- /*   else  hstepm=estepm;    */
- /*   hstepm=hstepm/stepm;  */
- /*   yp1=modf(dateintmean,&yp);/\* extracts integral of datemean in yp  and */
- /*                                fractional in yp1 *\/ */
- /*   anprojmean=yp; */
- /*   yp2=modf((yp1*12),&yp); */
- /*   mprojmean=yp; */
- /*   yp1=modf((yp2*30.5),&yp); */
- /*   jprojmean=yp; */
- /*   if(jprojmean==0) jprojmean=1; */
- /*   if(mprojmean==0) jprojmean=1; */
- /*   i1=cptcoveff; */
- /*   if (cptcovn < 1){i1=1;} */
- /*   fprintf(ficresfb,"# Mean day of interviews %.lf/%.lf/%.lf (%.2f) between %.2f and %.2f \n",jprojmean,mprojmean,anprojmean,dateintmean,dateprev1,dateprev2);  */
+   strcpy(fileresfb,"FB_");
+   strcat(fileresfb,fileresu);
+   if((ficresfb=fopen(fileresfb,"w"))==NULL) {
+     printf("Problem with back forecast resultfile: %s\n", fileresfb);
+     fprintf(ficlog,"Problem with back forecast resultfile: %s\n", fileresfb);
+   }
+   printf("\nComputing back forecasting: result on file '%s', please wait... \n", fileresfb);
+   fprintf(ficlog,"\nComputing back forecasting: result on file '%s', please wait... \n", fileresfb);
- /*   fprintf(ficresfb,"#****** Routine prevbackforecast **\n"); */
+   if (cptcoveff==0) ncodemax[cptcoveff]=1;
- /*      /\*           if (h==(int)(YEARM*yearp)){ *\/ */
- /*   for(cptcov=1, k=0;cptcov<=i1;cptcov++){ */
+   stepsize=(int) (stepm+YEARM-1)/YEARM;
- /*     for(cptcod=1;cptcod<=ncodemax[cptcoveff];cptcod++){ */
+   if (stepm<=12) stepsize=1;
- /*       k=k+1; */
+   if(estepm < stepm){
- /*       fprintf(ficresfb,"\n#****** hbijx=probability over h years, hp.jx is weighted by observed prev \n#"); */
+     printf ("Problem %d lower than %d\n",estepm, stepm);
- /*       for(j=1;j<=cptcoveff;j++) { */
+   }
- /*                              fprintf(ficresfb," V%d (=) %d",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]); */
+   else{
- /*       } */
+     hstepm=estepm;
- /*       fprintf(ficresfb," yearbproj age"); */
+   }
- /*       for(j=1; j<=nlstate+ndeath;j++){  */
+   if(estepm >= stepm){ /* Yes every two year */
- /*                              for(i=1; i<=nlstate;i++)               */
+     stepsize=2;
- /*           fprintf(ficresfb," p%d%d",i,j); */
+   }
- /*                              fprintf(ficresfb," p.%d",j); */
- /*       } */
+   hstepm=hstepm/stepm;
- /*       for (yearp=0; yearp>=(anback2-anback1);yearp -=stepsize) {  */
+   yp1=modf(dateintmean,&yp);/* extracts integral of datemean in yp  and
- /*                              /\* for (yearp=0; yearp<=(anproj2-anproj1);yearp +=stepsize) {  *\/ */
+                                fractional in yp1 */
- /*                              fprintf(ficresfb,"\n"); */
+   anprojmean=yp;
- /*                              fprintf(ficresfb,"\n# Back Forecasting at date %.lf/%.lf/%.lf ",jback1,mback1,anback1+yearp);    */
+   yp2=modf((yp1*12),&yp);
- /*                              for (agec=fage; agec>=(ageminpar-1); agec--){  */
+   mprojmean=yp;
- /*                                      nhstepm=(int) rint((agelim-agec)*YEARM/stepm);  */
+   yp1=modf((yp2*30.5),&yp);
- /*                                      nhstepm = nhstepm/hstepm;  */
+   jprojmean=yp;
- /*                                      p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm); */
+   if(jprojmean==0) jprojmean=1;
- /*                                      oldm=oldms;savm=savms; */
+   if(mprojmean==0) jprojmean=1;
- /*                                      hbxij(p3mat,nhstepm,agec,hstepm,p,prevacurrent,nlstate,stepm,oldm,savm,oldm,savm, dnewm, doldm, dsavm, k);       */
- /*                                      for (h=0; h<=nhstepm; h++){ */
+   i1=pow(2,cptcoveff);
- /*                                              if (h*hstepm/YEARM*stepm ==yearp) { */
+   if (cptcovn < 1){i1=1;}
- /*               fprintf(ficresfb,"\n"); */
- /*               for(j=1;j<=cptcoveff;j++)  */
+   fprintf(ficresfb,"# Mean day of interviews %.lf/%.lf/%.lf (%.2f) between %.2f and %.2f \n",jprojmean,mprojmean,anprojmean,dateintmean,dateprev1,dateprev2);
- /*                 fprintf(ficresfb,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]); */
+   printf("# Mean day of interviews %.lf/%.lf/%.lf (%.2f) between %.2f and %.2f \n",jprojmean,mprojmean,anprojmean,dateintmean,dateprev1,dateprev2);
- /*                                                      fprintf(ficresfb,"%.f %.f ",anback1+yearp,agec+h*hstepm/YEARM*stepm); */
- /*                                              }  */
+   fprintf(ficresfb,"#****** Routine prevbackforecast **\n");
- /*                                              for(j=1; j<=nlstate+ndeath;j++) { */
- /*                                                      ppij=0.; */
+   for(nres=1; nres <= nresult; nres++) /* For each resultline */
- /*                                                      for(i=1; i<=nlstate;i++) { */
+   for(k=1; k<=i1;k++){
- /*                                                              if (mobilav==1)  */
+     if(i1 != 1 && TKresult[nres]!= k)
- /*                                                                      ppij=ppij+p3mat[i][j][h]*mobaverage[(int)agec][i][cptcod]; */
+       continue;
- /*                                                              else { */
+     if(invalidvarcomb[k]){
- /*                                                                      ppij=ppij+p3mat[i][j][h]*probs[(int)(agec)][i][cptcod]; */
+       printf("\nCombination (%d) projection ignored because no cases \n",k);
- /*                                                              } */
+       continue;
- /*                                                              if (h*hstepm/YEARM*stepm== yearp) { */
+     }
- /*                                                                      fprintf(ficresfb," %.3f", p3mat[i][j][h]); */
+     fprintf(ficresfb,"\n#****** hbijx=probability over h years, hb.jx is weighted by observed prev \n#");
- /*                                                              } */
+     for(j=1;j<=cptcoveff;j++) {
- /*                                                      } /\* end i *\/ */
+       fprintf(ficresfb," V%d (=) %d",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
- /*                                                      if (h*hstepm/YEARM*stepm==yearp) { */
+     }
- /*                                                              fprintf(ficresfb," %.3f", ppij); */
+     for (k4=1; k4<= nsq; k4++){ /* For each selected (single) quantitative value */
- /*                                                      } */
+       fprintf(ficresf," V%d=%f ",Tvqresult[nres][k4],Tqresult[nres][k4]);
- /*                                              }/\* end j *\/ */
+     }
- /*                                      } /\* end h *\/ */
+     fprintf(ficresfb," yearbproj age");
- /*                                      free_ma3x(p3mat,1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm); */
+     for(j=1; j<=nlstate+ndeath;j++){
- /*                              } /\* end agec *\/ */
+       for(i=1; i<=nlstate;i++)
- /*       } /\* end yearp *\/ */
+         fprintf(ficresfb," b%d%d",i,j);
- /*     } /\* end cptcod *\/ */
+       fprintf(ficresfb," b.%d",j);
- /*   } /\* end  cptcov *\/ */
+     }
+     for (yearp=0; yearp>=(anback2-anback1);yearp -=stepsize) {
- /*   /\* if (mobilav!=0) free_ma3x(mobaverage,1, AGESUP,1,NCOVMAX, 1,NCOVMAX); *\/ */
+       /* for (yearp=0; yearp<=(anproj2-anproj1);yearp +=stepsize) {  */
+       fprintf(ficresfb,"\n");
- /*   fclose(ficresfb); */
+       fprintf(ficresfb,"\n# Back Forecasting at date %.lf/%.lf/%.lf ",jback1,mback1,anback1+yearp);
- /*   printf("End of Computing Back forecasting \n"); */
+       /* printf("\n# Back Forecasting at date %.lf/%.lf/%.lf ",jback1,mback1,anback1+yearp); */
- /*   fprintf(ficlog,"End of Computing Back forecasting\n"); */
+       /* for (agec=bage; agec<=agemax-1; agec++){  /\* testing *\/ */
+       for (agec=bage; agec<=fage; agec++){  /* testing */
+         /* We compute bij at age agec over nhstepm, nhstepm decreases when agec increases because of agemax;*/
+         nhstepm=(int) (agec-agelim) *YEARM/stepm;/*     nhstepm=(int) rint((agec-agelim)*YEARM/stepm);*/
+         nhstepm = nhstepm/hstepm;
+         p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
+         oldm=oldms;savm=savms;
+         /* computes hbxij at age agec over 1 to nhstepm */
+         /* printf("####prevbackforecast debug  agec=%.2f nhstepm=%d\n",agec, nhstepm);fflush(stdout); */
+         hbxij(p3mat,nhstepm,agec,hstepm,p,prevacurrent,nlstate,stepm, k, nres);
+         /* hpxij(p3mat,nhstepm,agec,hstepm,p,             nlstate,stepm,oldm,savm, k,nres); */
+         /* Then we print p3mat for h corresponding to the right agec+h*stepms=yearp */
+         /* printf(" agec=%.2f\n",agec);fflush(stdout); */
+         for (h=0; h<=nhstepm; h++){
+           if (h*hstepm/YEARM*stepm ==-yearp) {
+             break;
+           }
+         }
+         fprintf(ficresfb,"\n");
+         for(j=1;j<=cptcoveff;j++)
+           fprintf(ficresfb,"%d %d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         fprintf(ficresfb,"%.f %.f ",anback1+yearp,agec-h*hstepm/YEARM*stepm);
+         for(i=1; i<=nlstate+ndeath;i++) {
+           ppij=0.;ppi=0.;
+           for(j=1; j<=nlstate;j++) {
+             /* if (mobilav==1) */
+             ppij=ppij+p3mat[i][j][h]*prevacurrent[(int)agec][j][k];
+             ppi=ppi+prevacurrent[(int)agec][j][k];
+             /* ppij=ppij+p3mat[i][j][h]*mobaverage[(int)agec][j][k]; */
+             /* ppi=ppi+mobaverage[(int)agec][j][k]; */
+               /* else { */
+               /*        ppij=ppij+p3mat[i][j][h]*probs[(int)(agec)][i][k]; */
+               /* } */
+             fprintf(ficresfb," %.3f", p3mat[i][j][h]);
+           } /* end j */
+           if(ppi <0.99){
+             printf("Error in prevbackforecast, prevalence doesn't sum to 1 for state %d: %3f\n",i, ppi);
+             fprintf(ficlog,"Error in prevbackforecast, prevalence doesn't sum to 1 for state %d: %3f\n",i, ppi);
+           }
+           fprintf(ficresfb," %.3f", ppij);
+         }/* end j */
+         free_ma3x(p3mat,1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
+       } /* end agec */
+     } /* end yearp */
+   } /* end k */
+   /* if (mobilav!=0) free_ma3x(mobaverage,1, AGESUP,1,NCOVMAX, 1,NCOVMAX); */
+   fclose(ficresfb);
+   printf("End of Computing Back forecasting \n");
+   fprintf(ficlog,"End of Computing Back forecasting\n");
- /* } */
+ }
+ /* Variance of prevalence limit: varprlim */
+  void varprlim(char fileresu[], int nresult, double ***prevacurrent, int mobilavproj, double bage, double fage, double **prlim, int *ncvyearp, double ftolpl, double p[], double **matcov, double *delti, int stepm, int cptcoveff){
+     /*------- Variance of period (stable) prevalence------*/
+    char fileresvpl[FILENAMELENGTH];
+    FILE *ficresvpl;
+    double **oldm, **savm;
+    double **varpl; /* Variances of prevalence limits by age */
+    int i1, k, nres, j ;
+     strcpy(fileresvpl,"VPL_");
+     strcat(fileresvpl,fileresu);
+     if((ficresvpl=fopen(fileresvpl,"w"))==NULL) {
+       printf("Problem with variance of period (stable) prevalence  resultfile: %s\n", fileresvpl);
+       exit(0);
+     }
+     printf("Computing Variance-covariance of period (stable) prevalence: file '%s' ...", fileresvpl);fflush(stdout);
+     fprintf(ficlog, "Computing Variance-covariance of period (stable) prevalence: file '%s' ...", fileresvpl);fflush(ficlog);
+     /*for(cptcov=1,k=0;cptcov<=i1;cptcov++){
+       for(cptcod=1;cptcod<=ncodemax[cptcov];cptcod++){*/
+     i1=pow(2,cptcoveff);
+     if (cptcovn < 1){i1=1;}
+     for(nres=1; nres <= nresult; nres++) /* For each resultline */
+     for(k=1; k<=i1;k++){
+       if(i1 != 1 && TKresult[nres]!= k)
+         continue;
+       fprintf(ficresvpl,"\n#****** ");
+       printf("\n#****** ");
+       fprintf(ficlog,"\n#****** ");
+       for(j=1;j<=cptcoveff;j++) {
+         fprintf(ficresvpl,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         fprintf(ficlog,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+         printf("V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+       }
+       for (j=1; j<= nsq; j++){ /* For each selected (single) quantitative value */
+         printf(" V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
+         fprintf(ficresvpl," V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
+         fprintf(ficlog," V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
+       }
+       fprintf(ficresvpl,"******\n");
+       printf("******\n");
+       fprintf(ficlog,"******\n");
+       varpl=matrix(1,nlstate,(int) bage, (int) fage);
+       oldm=oldms;savm=savms;
+       varprevlim(fileresvpl, ficresvpl, varpl, matcov, p, delti, nlstate, stepm, (int) bage, (int) fage, oldm, savm, prlim, ftolpl, ncvyearp, k, strstart, nres);
+       free_matrix(varpl,1,nlstate,(int) bage, (int)fage);
+       /*}*/
+     }
+     fclose(ficresvpl);
+     printf("done variance-covariance of period prevalence\n");fflush(stdout);
+     fprintf(ficlog,"done variance-covariance of period prevalence\n");fflush(ficlog);
+  }
+ /* Variance of back prevalence: varbprlim */
+  void varbprlim(char fileresu[], int nresult, double ***prevacurrent, int mobilavproj, double bage, double fage, double **bprlim, int *ncvyearp, double ftolpl, double p[], double **matcov, double *delti, int stepm, int cptcoveff){
+       /*------- Variance of back (stable) prevalence------*/
+    char fileresvbl[FILENAMELENGTH];
+    FILE  *ficresvbl;
+    double **oldm, **savm;
+    double **varbpl; /* Variances of back prevalence limits by age */
+    int i1, k, nres, j ;
+    strcpy(fileresvbl,"VBL_");
+    strcat(fileresvbl,fileresu);
+    if((ficresvbl=fopen(fileresvbl,"w"))==NULL) {
+      printf("Problem with variance of back (stable) prevalence  resultfile: %s\n", fileresvbl);
+      exit(0);
+    }
+    printf("Computing Variance-covariance of back (stable) prevalence: file '%s' ...", fileresvbl);fflush(stdout);
+    fprintf(ficlog, "Computing Variance-covariance of back (stable) prevalence: file '%s' ...", fileresvbl);fflush(ficlog);
+    i1=pow(2,cptcoveff);
+    if (cptcovn < 1){i1=1;}
+    for(nres=1; nres <= nresult; nres++) /* For each resultline */
+      for(k=1; k<=i1;k++){
+        if(i1 != 1 && TKresult[nres]!= k)
+          continue;
+        fprintf(ficresvbl,"\n#****** ");
+        printf("\n#****** ");
+        fprintf(ficlog,"\n#****** ");
+        for(j=1;j<=cptcoveff;j++) {
+          fprintf(ficresvbl,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+          fprintf(ficlog,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+          printf("V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
+        }
+        for (j=1; j<= nsq; j++){ /* For each selected (single) quantitative value */
+          printf(" V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
+          fprintf(ficresvbl," V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
+          fprintf(ficlog," V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
+        }
+        fprintf(ficresvbl,"******\n");
+        printf("******\n");
+        fprintf(ficlog,"******\n");
+        varbpl=matrix(1,nlstate,(int) bage, (int) fage);
+        oldm=oldms;savm=savms;
+        varbrevlim(fileresvbl, ficresvbl, varbpl, matcov, p, delti, nlstate, stepm, (int) bage, (int) fage, oldm, savm, bprlim, ftolpl, mobilavproj, ncvyearp, k, strstart, nres);
+        free_matrix(varbpl,1,nlstate,(int) bage, (int)fage);
+        /*}*/
+      }
+    fclose(ficresvbl);
+    printf("done variance-covariance of back prevalence\n");fflush(stdout);
+    fprintf(ficlog,"done variance-covariance of back prevalence\n");fflush(ficlog);
+  } /* End of varbprlim */
  /************** Forecasting *****not tested NB*************/
  /* void populforecast(char fileres[], double anpyram,double mpyram,double jpyram,double ageminpar, double agemax,double dateprev1, double dateprev2s, int mobilav, double agedeb, double fage, int popforecast, char popfile[], double anpyram1,double p[], int i2){ */
- Line 9771  int back_prevalence_limit(double *p, dou
+ Line 10371  int back_prevalence_limit(double *p, dou
          }else{
            /* bprevalim(bprlim, probs, nlstate, p, age, oldm, savm, dnewm, doldm, dsavm, ftolpl, ncvyearp, k); */
            bprevalim(bprlim, probs, nlstate, p, age, ftolpl, ncvyearp, k,nres);
+           /* printf("TOTOT\n"); */
+           /* exit(1); */
          }
          fprintf(ficresplb,"%.0f ",age );
          for(j=1;j<=cptcoveff;j++)
- Line 9929  int hPijx(double *p, int bage, int fage)
+ Line 10531  int hPijx(double *p, int bage, int fage)
          /*        nhstepm=nhstepm*YEARM; aff par mois*/
-         p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm);
+         p3mat=ma3x(1,nlstate+ndeath,1, nlstate+ndeath, 0,nhstepm); /* We can't have it at an upper level because of nhstepm */
+         /* and memory limitations if stepm is small */
          /* oldm=oldms;savm=savms; */
          /* hbxij(p3mat,nhstepm,agedeb,hstepm,p,nlstate,stepm,oldm,savm, k);   */
-         hbxij(p3mat,nhstepm,agedeb,hstepm,p,prevacurrent,nlstate,stepm, k);
+         hbxij(p3mat,nhstepm,agedeb,hstepm,p,prevacurrent,nlstate,stepm, k, nres);
          /* hbxij(p3mat,nhstepm,agedeb,hstepm,p,prevacurrent,nlstate,stepm,oldm,savm, dnewm, doldm, dsavm, k); */
          fprintf(ficrespijb,"# Cov Agex agex-h hbijx with i,j=");
          for(i=1; i<=nlstate;i++)
- Line 10033  int main(int argc, char *argv[])
+ Line 10637  int main(int argc, char *argv[])
    double *delti; /* Scale */
    double ***eij, ***vareij;
    double **varpl; /* Variances of prevalence limits by age */
    double *epj, vepp;
-   double dateprev1, dateprev2,jproj1=1,mproj1=1,anproj1=2000,jproj2=1,mproj2=1,anproj2=2000;
+   double dateprev1, dateprev2;
-   double jback1=1,mback1=1,anback1=2000,jback2=1,mback2=1,anback2=2000;
+   double jproj1=1,mproj1=1,anproj1=2000,jproj2=1,mproj2=1,anproj2=2000, dateproj1=0, dateproj2=0;
+   double jback1=1,mback1=1,anback1=2000,jback2=1,mback2=1,anback2=2000, dateback1=0, dateback2=0;
    double **ximort;
    char *alph[]={"a","a","b","c","d","e"}, str[4]="1234";
- Line 10316  int main(int argc, char *argv[])
+ Line 10922  int main(int argc, char *argv[])
    covar=matrix(0,NCOVMAX,1,n);  /**< used in readdata */
-   coqvar=matrix(1,nqv,1,n);  /**< Fixed quantitative covariate */
+   if(nqv>=1)coqvar=matrix(1,nqv,1,n);  /**< Fixed quantitative covariate */
-   cotvar=ma3x(1,maxwav,1,ntv+nqtv,1,n);  /**< Time varying covariate (dummy and quantitative)*/
+   if(nqtv>=1)cotqvar=ma3x(1,maxwav,1,nqtv,1,n);  /**< Time varying quantitative covariate */
-   cotqvar=ma3x(1,maxwav,1,nqtv,1,n);  /**< Time varying quantitative covariate */
+   if(ntv+nqtv>=1)cotvar=ma3x(1,maxwav,1,ntv+nqtv,1,n);  /**< Time varying covariate (dummy and quantitative)*/
    cptcovn=0; /*Number of covariates, i.e. number of '+' in model statement plus one, indepently of n in Vn*/
    /* v1+v2+v3+v2*v4+v5*age makes cptcovn = 5
       v1+v2*age+v2*v3 makes cptcovn = 3
- Line 10869  Youngest age at first (selected) pass %.
+ Line 11475  Youngest age at first (selected) pass %.
  Interval (in months) between two waves: Min=%d Max=%d Mean=%.2lf<br>\n",\
            imx,agemin,agemax,jmin,jmax,jmean);
    pmmij= matrix(1,nlstate+ndeath,1,nlstate+ndeath); /* creation */
-         oldms= matrix(1,nlstate+ndeath,1,nlstate+ndeath); /* creation */
+   oldms= matrix(1,nlstate+ndeath,1,nlstate+ndeath); /* creation */
-         newms= matrix(1,nlstate+ndeath,1,nlstate+ndeath); /* creation */
+   newms= matrix(1,nlstate+ndeath,1,nlstate+ndeath); /* creation */
-         savms= matrix(1,nlstate+ndeath,1,nlstate+ndeath); /* creation */
+   savms= matrix(1,nlstate+ndeath,1,nlstate+ndeath); /* creation */
-         oldm=oldms; newm=newms; savm=savms; /* Keeps fixed addresses to free */
+   oldm=oldms; newm=newms; savm=savms; /* Keeps fixed addresses to free */
    /* For Powell, parameters are in a vector p[] starting at p[1]
       so we point p on param[1][1] so that p[1] maps on param[1][1][1] */
- Line 11427  Please run with mle=-1 to get a correct
+ Line 12033  Please run with mle=-1 to get a correct
            fprintf(ficlog,"prevforecast=%d starting-proj-date=%.lf/%.lf/%.lf final-proj-date=%.lf/%.lf/%.lf mobil_average=%d\n",prevfcast,jproj1,mproj1,anproj1,jproj2,mproj2,anproj2,mobilavproj);
            fprintf(ficres,"prevforecast=%d starting-proj-date=%.lf/%.lf/%.lf final-proj-date=%.lf/%.lf/%.lf mobil_average=%d\n",prevfcast,jproj1,mproj1,anproj1,jproj2,mproj2,anproj2,mobilavproj);
            /* day and month of proj2 are not used but only year anproj2.*/
+           dateproj1=anproj1+(mproj1-1)/12.+(jproj1-1)/365.;
+           dateproj2=anproj2+(mproj2-1)/12.+(jproj2-1)/365.;
          }
          break;
        case 12:
- Line 11442  Please run with mle=-1 to get a correct
+ Line 12051  Please run with mle=-1 to get a correct
            fprintf(ficlog,"backcast=%d starting-back-date=%.lf/%.lf/%.lf final-back-date=%.lf/%.lf/%.lf mobil_average=%d\n",backcast,jback1,mback1,anback1,jback2,mback2,anback2,mobilavproj);
            fprintf(ficres,"backcast=%d starting-back-date=%.lf/%.lf/%.lf final-back-date=%.lf/%.lf/%.lf mobil_average=%d\n",backcast,jback1,mback1,anback1,jback2,mback2,anback2,mobilavproj);
            /* day and month of proj2 are not used but only year anproj2.*/
+           dateback1=anback1+(mback1-1)/12.+(jback1-1)/365.;
+           dateback2=anback2+(mback2-1)/12.+(jback2-1)/365.;
          }
          break;
        case 13:
- Line 11492  Please run with mle=-1 to get a correct
+ Line 12103  Please run with mle=-1 to get a correct
  This is probably because your parameter file doesn't \n  contain the exact number of lines (or columns) corresponding to your model line.\n\
  Please run with mle=-1 to get a correct covariance matrix.\n",ageminpar,agemaxpar);
      }else{
-       printinggnuplot(fileresu, optionfilefiname,ageminpar,agemaxpar,fage, prevfcast, backcast, pathc,p);
+       /* printinggnuplot(fileresu, optionfilefiname,ageminpar,agemaxpar,fage, prevfcast, backcast, pathc,p, (int)anproj1-(int)agemin, (int)anback1-(int)agemax+1); */
+       printinggnuplot(fileresu, optionfilefiname,ageminpar,agemaxpar,bage, fage, prevfcast, backcast, pathc,p, (int)anproj1-bage, (int)anback1-fage);
      }
      printinghtml(fileresu,title,datafile, firstpass, lastpass, stepm, weightopt, \
                   model,imx,jmin,jmax,jmean,rfileres,popforecast,mobilav,prevfcast,mobilavproj,backcast, estepm, \
-                  jprev1,mprev1,anprev1,dateprev1,jprev2,mprev2,anprev2,dateprev2);
+                  jprev1,mprev1,anprev1,dateprev1, dateproj1, dateback1,jprev2,mprev2,anprev2,dateprev2,dateproj2, dateback2);
      /*------------ free_vector  -------------*/
      /*  chdir(path); */
- Line 11532  Please run with mle=-1 to get a correct
+ Line 12144  Please run with mle=-1 to get a correct
      k=1;
      varprob(optionfilefiname, matcov, p, delti, nlstate, bage, fage,k,Tvar,nbcode, ncodemax,strstart);
-     /* Prevalence for each covariates in probs[age][status][cov] */
+     /* Prevalence for each covariate combination in probs[age][status][cov] */
-     probs= ma3x(1,AGESUP,1,nlstate+ndeath, 1,ncovcombmax);
+     probs= ma3x(AGEINF,AGESUP,1,nlstate+ndeath, 1,ncovcombmax);
-     for(i=1;i<=AGESUP;i++)
+     for(i=AGEINF;i<=AGESUP;i++)
        for(j=1;j<=nlstate+ndeath;j++) /* ndeath is useless but a necessity to be compared with mobaverages */
          for(k=1;k<=ncovcombmax;k++)
            probs[i][j][k]=0.;
-     prevalence(probs, ageminpar, agemaxpar, s, agev, nlstate, imx, Tvar, nbcode, ncodemax, mint, anint, dateprev1, dateprev2, firstpass, lastpass);
+     prevalence(probs, ageminpar, agemaxpar, s, agev, nlstate, imx, Tvar, nbcode,
+                ncodemax, mint, anint, dateprev1, dateprev2, firstpass, lastpass);
      if (mobilav!=0 ||mobilavproj !=0 ) {
-       mobaverages= ma3x(1, AGESUP,1,nlstate+ndeath, 1,ncovcombmax);
+       mobaverages= ma3x(AGEINF, AGESUP,1,nlstate+ndeath, 1,ncovcombmax);
-       for(i=1;i<=AGESUP;i++)
+       for(i=AGEINF;i<=AGESUP;i++)
-         for(j=1;j<=nlstate;j++)
+         for(j=1;j<=nlstate+ndeath;j++)
            for(k=1;k<=ncovcombmax;k++)
              mobaverages[i][j][k]=0.;
        mobaverage=mobaverages;
- Line 11553  Please run with mle=-1 to get a correct
+ Line 12166  Please run with mle=-1 to get a correct
            fprintf(ficlog," Error in movingaverage mobilav=%d\n",mobilav);
            printf(" Error in movingaverage mobilav=%d\n",mobilav);
          }
-       }
+       } else if (mobilavproj !=0) {
-       /* /\* Prevalence for each covariates in probs[age][status][cov] *\/ */
-       /* prevalence(probs, ageminpar, agemaxpar, s, agev, nlstate, imx, Tvar, nbcode, ncodemax, mint, anint, dateprev1, dateprev2, firstpass, lastpass); */
-       else if (mobilavproj !=0) {
          printf("Movingaveraging projected observed prevalence\n");
          fprintf(ficlog,"Movingaveraging projected observed prevalence\n");
          if (movingaverage(probs, ageminpar, agemaxpar, mobaverage, mobilavproj)!=0){
            fprintf(ficlog," Error in movingaverage mobilavproj=%d\n",mobilavproj);
            printf(" Error in movingaverage mobilavproj=%d\n",mobilavproj);
          }
+       }else{
+         printf("Internal error moving average\n");
+         fflush(stdout);
+         exit(1);
        }
      }/* end if moving average */
      /*---------- Forecasting ------------------*/
-     /*if((stepm == 1) && (strcmp(model,".")==0)){*/
      if(prevfcast==1){
        /*    if(stepm ==1){*/
-       prevforecast(fileresu, anproj1, mproj1, jproj1, agemin, agemax, dateprev1, dateprev2, mobilavproj, bage, fage, firstpass, lastpass, anproj2, p, cptcoveff);
+       prevforecast(fileresu, anproj1, mproj1, jproj1, agemin, agemax, dateprev1, dateprev2, mobilavproj, mobaverage, bage, fage, firstpass, lastpass, anproj2, p, cptcoveff);
      }
+     /* Backcasting */
      if(backcast==1){
        ddnewms=matrix(1,nlstate+ndeath,1,nlstate+ndeath);
        ddoldms=matrix(1,nlstate+ndeath,1,nlstate+ndeath);
- Line 11580  Please run with mle=-1 to get a correct
+ Line 12195  Please run with mle=-1 to get a correct
        /*--------------- Back Prevalence limit  (period or stable prevalence) --------------*/
        bprlim=matrix(1,nlstate,1,nlstate);
        back_prevalence_limit(p, bprlim,  ageminpar, agemaxpar, ftolpl, &ncvyear, dateprev1, dateprev2, firstpass, lastpass, mobilavproj);
        fclose(ficresplb);
        hBijx(p, bage, fage, mobaverage);
        fclose(ficrespijb);
-       free_matrix(bprlim,1,nlstate,1,nlstate); /*here or after loop ? */
-       /* prevbackforecast(fileresu, anback1, mback1, jback1, agemin, agemax, dateprev1, dateprev2, mobilavproj,
+       prevbackforecast(fileresu, mobaverage, anback1, mback1, jback1, agemin, agemax, dateprev1, dateprev2,
-          bage, fage, firstpass, lastpass, anback2, p, cptcoveff); */
+                        mobilavproj, bage, fage, firstpass, lastpass, anback2, p, cptcoveff);
+       varbprlim(fileresu, nresult, mobaverage, mobilavproj, bage, fage, bprlim, &ncvyear, ftolpl, p, matcov, delti, stepm, cptcoveff);
+       free_matrix(bprlim,1,nlstate,1,nlstate); /*here or after loop ? */
        free_matrix(ddnewms, 1, nlstate+ndeath, 1, nlstate+ndeath);
        free_matrix(ddsavms, 1, nlstate+ndeath, 1, nlstate+ndeath);
        free_matrix(ddoldms, 1, nlstate+ndeath, 1, nlstate+ndeath);
-     }
+     }    /* end  Backcasting */
      /* ------ Other prevalence ratios------------ */
- Line 11645  Please run with mle=-1 to get a correct
+ Line 12264  Please run with mle=-1 to get a correct
      fclose(ficreseij);
      printf("done evsij\n");fflush(stdout);
      fprintf(ficlog,"done evsij\n");fflush(ficlog);
      /*---------- State-specific expectancies and variances ------------*/
      strcpy(filerest,"T_");
      strcat(filerest,fileresu);
      if((ficrest=fopen(filerest,"w"))==NULL) {
- Line 11657  Please run with mle=-1 to get a correct
+ Line 12276  Please run with mle=-1 to get a correct
      }
      printf("Computing Total Life expectancies with their standard errors: file '%s' ...\n", filerest); fflush(stdout);
      fprintf(ficlog,"Computing Total Life expectancies with their standard errors: file '%s' ...\n", filerest); fflush(ficlog);
      strcpy(fileresstde,"STDE_");
      strcat(fileresstde,fileresu);
      if((ficresstdeij=fopen(fileresstde,"w"))==NULL) {
- Line 11686  Please run with mle=-1 to get a correct
+ Line 12303  Please run with mle=-1 to get a correct
      printf("      Computing Variance-covariance of State-specific Expectancies: file '%s' ... ", fileresv);fflush(stdout);
      fprintf(ficlog,"      Computing Variance-covariance of State-specific Expectancies: file '%s' ... ", fileresv);fflush(ficlog);
-     /*for(cptcov=1,k=0;cptcov<=i1;cptcov++){
-       for(cptcod=1;cptcod<=ncodemax[cptcov];cptcod++){*/
      i1=pow(2,cptcoveff); /* Number of combination of dummy covariates */
      if (cptcovn < 1){i1=1;}
- Line 11750  Please run with mle=-1 to get a correct
+ Line 12364  Please run with mle=-1 to get a correct
        vareij=ma3x(1,nlstate,1,nlstate,(int) bage, (int) fage);
        pstamp(ficrest);
+       epj=vector(1,nlstate+1);
        for(vpopbased=0; vpopbased <= popbased; vpopbased++){ /* Done for vpopbased=0 and vpopbased=1 if popbased==1*/
          oldm=oldms;savm=savms; /* ZZ Segmentation fault */
          cptcod= 0; /* To be deleted */
- Line 11766  Please run with mle=-1 to get a correct
+ Line 12380  Please run with mle=-1 to get a correct
          for (i=1;i<=nlstate;i++) fprintf(ficrest,"e.%d (std) ",i);
          fprintf(ficrest,"\n");
          /* printf("Which p?\n"); for(i=1;i<=npar;i++)printf("p[i=%d]=%lf,",i,p[i]);printf("\n"); */
-         epj=vector(1,nlstate+1);
          printf("Computing age specific period (stable) prevalences in each health state \n");
          fprintf(ficlog,"Computing age specific period (stable) prevalences in each health state \n");
          for(age=bage; age <=fage ;age++){
- Line 11804  Please run with mle=-1 to get a correct
+ Line 12417  Please run with mle=-1 to get a correct
            fprintf(ficrest,"\n");
          }
        } /* End vpopbased */
+       free_vector(epj,1,nlstate+1);
        free_ma3x(eij,1,nlstate,1,nlstate,(int) bage, (int)fage);
        free_ma3x(vareij,1,nlstate,1,nlstate,(int) bage, (int)fage);
-       free_vector(epj,1,nlstate+1);
        printf("done selection\n");fflush(stdout);
        fprintf(ficlog,"done selection\n");fflush(ficlog);
-       /*}*/
      } /* End k selection */
      printf("done State-specific expectancies\n");fflush(stdout);
      fprintf(ficlog,"done State-specific expectancies\n");fflush(ficlog);
-     /*------- Variance of period (stable) prevalence------*/
+     /* variance-covariance of period prevalence*/
+     varprlim(fileresu, nresult, mobaverage, mobilavproj, bage, fage, prlim, &ncvyear, ftolpl, p, matcov, delti, stepm, cptcoveff);
-     strcpy(fileresvpl,"VPL_");
-     strcat(fileresvpl,fileresu);
-     if((ficresvpl=fopen(fileresvpl,"w"))==NULL) {
-       printf("Problem with variance of period (stable) prevalence  resultfile: %s\n", fileresvpl);
-       exit(0);
-     }
-     printf("Computing Variance-covariance of period (stable) prevalence: file '%s' ...", fileresvpl);fflush(stdout);
-     fprintf(ficlog, "Computing Variance-covariance of period (stable) prevalence: file '%s' ...", fileresvpl);fflush(ficlog);
-     /*for(cptcov=1,k=0;cptcov<=i1;cptcov++){
-       for(cptcod=1;cptcod<=ncodemax[cptcov];cptcod++){*/
-     i1=pow(2,cptcoveff);
-     if (cptcovn < 1){i1=1;}
-     for(nres=1; nres <= nresult; nres++) /* For each resultline */
-     for(k=1; k<=i1;k++){
-       if(i1 != 1 && TKresult[nres]!= k)
-         continue;
-       fprintf(ficresvpl,"\n#****** ");
-       printf("\n#****** ");
-       fprintf(ficlog,"\n#****** ");
-       for(j=1;j<=cptcoveff;j++) {
-         fprintf(ficresvpl,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-         fprintf(ficlog,"V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-         printf("V%d=%d ",Tvaraff[j],nbcode[Tvaraff[j]][codtabm(k,j)]);
-       }
-       for (j=1; j<= nsq; j++){ /* For each selected (single) quantitative value */
-         printf(" V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
-         fprintf(ficresvpl," V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
-         fprintf(ficlog," V%d=%f ",Tvqresult[nres][j],Tqresult[nres][j]);
-       }
-       fprintf(ficresvpl,"******\n");
-       printf("******\n");
-       fprintf(ficlog,"******\n");
-       varpl=matrix(1,nlstate,(int) bage, (int) fage);
-       oldm=oldms;savm=savms;
-       varprevlim(fileres, varpl, matcov, p, delti, nlstate, stepm, (int) bage, (int) fage, oldm, savm, prlim, ftolpl, &ncvyear, k, strstart, nres);
-       free_matrix(varpl,1,nlstate,(int) bage, (int)fage);
-       /*}*/
-     }
-     fclose(ficresvpl);
-     printf("done variance-covariance of period prevalence\n");fflush(stdout);
-     fprintf(ficlog,"done variance-covariance of period prevalence\n");fflush(ficlog);
      free_vector(weight,1,n);
      free_imatrix(Tvard,1,NCOVMAX,1,2);
- Line 11881  Please run with mle=-1 to get a correct
+ Line 12448  Please run with mle=-1 to get a correct
      /*---------- End : free ----------------*/
      if (mobilav!=0 ||mobilavproj !=0)
-       free_ma3x(mobaverages,1, AGESUP,1,nlstate+ndeath, 1,ncovcombmax); /* We need to have a squared matrix with prevalence of the dead! */
+       free_ma3x(mobaverages,AGEINF, AGESUP,1,nlstate+ndeath, 1,ncovcombmax); /* We need to have a squared matrix with prevalence of the dead! */
-     free_ma3x(probs,1,AGESUP,1,nlstate+ndeath, 1,ncovcombmax);
+     free_ma3x(probs,AGEINF,AGESUP,1,nlstate+ndeath, 1,ncovcombmax);
      free_matrix(prlim,1,nlstate,1,nlstate); /*here or after loop ? */
      free_matrix(pmmij,1,nlstate+ndeath,1,nlstate+ndeath);
    }  /* mle==-3 arrives here for freeing */
- Line 11890  Please run with mle=-1 to get a correct
+ Line 12457  Please run with mle=-1 to get a correct
    free_matrix(oldms, 1,nlstate+ndeath,1,nlstate+ndeath);
    free_matrix(newms, 1,nlstate+ndeath,1,nlstate+ndeath);
    free_matrix(savms, 1,nlstate+ndeath,1,nlstate+ndeath);
-   free_ma3x(cotqvar,1,maxwav,1,nqtv,1,n);
+   if(ntv+nqtv>=1)free_ma3x(cotvar,1,maxwav,1,ntv+nqtv,1,n);
-   free_ma3x(cotvar,1,maxwav,1,ntv+nqtv,1,n);
+   if(nqtv>=1)free_ma3x(cotqvar,1,maxwav,1,nqtv,1,n);
-   free_matrix(coqvar,1,maxwav,1,n);
+   if(nqv>=1)free_matrix(coqvar,1,nqv,1,n);
    free_matrix(covar,0,NCOVMAX,1,n);
    free_matrix(matcov,1,npar,1,npar);
    free_matrix(hess,1,npar,1,npar);
    /*free_vector(delti,1,npar);*/
    free_ma3x(delti3,1,nlstate,1, nlstate+ndeath-1,1,ncovmodel);
    free_matrix(agev,1,maxwav,1,imx);
+   free_ma3x(paramstart,1,nlstate,1, nlstate+ndeath-1,1,ncovmodel);
    free_ma3x(param,1,nlstate,1, nlstate+ndeath-1,1,ncovmodel);
    free_ivector(ncodemax,1,NCOVMAX);

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	Added in v.1.273