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version 1.44, 2021/02/20 15:45:47 version 1.54, 2022/07/23 17:43:46
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 2021-02-20  Nicolas Brouard   <brouard@ined.fr>  2022-07-23  Nicolas Brouard   <brouard@ined.fr>
   
         * imach.c (Module): Fix bug on quitting after result lines!          * r29 W and not sqrt(Wald)
         (Module): Version 0.99r21  
   2022-07-22  Nicolas Brouard   <brouard@ined.fr>
 2021-02-12  Nicolas Brouard   <brouard@ined.fr>  
           *  imach.c (Module): Output of Wald test in the htm file and not only in the log. 
         * imach.c (Module): The use of a Windows BOM (huge) file is now an error  
   2022-05-30  Brouard Nicolas  <brouard@brouard.name>
   
 2021-02-11  Nicolas  Brouard   <brouard@ined.fr>          * imach.c: With products of covariates (age or dummies or
           quantitatives), estimates of parameters were good but when
         *  (Module): imach.c Someone entered 'results:' instead of 'result:'. Now it is an error which is printed.          estimating variances the positions of newly created covariates
           were wrongly assigned and results were wrong. Thank to Feinua_Sun!
 2020-02-22  Brouard Nicolas  <brouard@ined.fr>  
   2022-05-24  Nicolas Brouard   <brouard@ined.fr>
         *  (Module): imach.c Update mle=-3 (for computing Life expectancy  
         and life table from the data without any state)          * imach.c (Module): Some attempts to find a bug of wrong estimates
           of confidencce intervals with product in the equation modelC
 2019-05-20  Brouard Nicolas  <brouard@ined.fr>  
   2022-05-15  Nicolas Brouard   <brouard@ined.fr>
         * version.h: Summary: version 0.99.r19  
           * imach.c (Module):  Some minor improvements
         * imach.c: Summary: Projection syntax simplified  
         We can now start projections, forward or backward, from the mean date  2022-04-13  Brouard Nicolas  <brouard@brouard.name>
         of inteviews up to or down to a number of years of projection:  
         prevforecast=1 yearsfproj=15.3 mobil_average=0          * imach.c (Module): Adding link to text data files
         or  
         prevforecast=1 starting-proj-date=1/1/2007 final-proj-date=12/31/2017 mobil_average=0  2022-04-11  Nicolas Brouard   <brouard@ined.fr>
         or  
         prevbackcast=1 yearsbproj=12.3 mobil_average=1          * imach.c (Module): Error in rewriting the 'r' file with yearsfproj or yearsbproj fixed
         or  
         prevbackcast=1 starting-back-date=1/10/1999 final-back-date=1/1/1985 mobil_average=1  2022-04-05  Brouard Nicolas  <brouard@ined.fr>
   
 2019-05-18  Brouard Nicolas  <brouard@ined.fr>          * imach.c (Module): Fixed covariates (dummy or quantitative)
           with missing values have never been allowed but are ERRORS and
         * imach.c: Summary: doxygen tex bug          program quits. Standard deviations of fixed covariates were
           wrongly computed. Mean and standard deviations of time varying
 2019-05-16  Brouard Nicolas  <brouard@ined.fr>          covariates are still not computed.
   
         * imach.c: Summary: There was some wrong lines added  2022-03-17  Brouard Nicolas  <brouard@ined.fr>
   
 2019-05-09  Brouard Nicolas  <brouard@ined.fr>          * 99r25 Improvements in fixing discrepancies between covariates
           missing in result line but in model. 
         * Makefile, imach.c: *** empty log message ***  
   *Wed Mar 31 2021  Nicolas Brouard   <brouard@ined.fr>
         * ChangeLog: Summary: C=          * imach.c (Module): Still bugs in the result loop. Thank to Holly Benett
   
         * imach.c: Summary: Some updates  *2021-03-08  Nicolas Brouard   <brouard@ined.fr>
   
         * imach.c: Summary: Before ncovmax          * ./ (Module): Fixed bug on result:
   
         * version.h: *** empty log message ***  *2021-02-20  Nicolas Brouard   <brouard@ined.fr>
   
         * imach.c: Summary: 0.99r18 unlimited number of individuals          * imach.c (Module): Fix bug on quitting after result lines!
         The number n which was limited to 20,000 cases is now unlimited, from firstobs to lastobs. If the number is too for the virtual memory, probably an error will occur.          (Module): Version 0.99r21
   
 2018-12-13  Brouard Nicolas  <brouard@ined.fr>  2021-02-12  Nicolas Brouard   <brouard@ined.fr>
   
         * imach.c: Summary: Bug for young ages (<-30) will be in r17          * imach.c (Module): The use of a Windows BOM (huge) file is now an error
   
 2018-12-05  Brouard Nicolas  <brouard@ined.fr>  
   2021-02-11  Nicolas  Brouard   <brouard@ined.fr>
         * Makefile: Summary: 0.99r16  
           *  (Module): imach.c Someone entered 'results:' instead of 'result:'. Now it is an error which is printed.
 2018-05-02  Brouard Nicolas  <brouard@ined.fr>  
   2020-02-22  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Some bugs fixed  
           *  (Module): imach.c Update mle=-3 (for computing Life expectancy
 2018-05-02  Brouard Nicolas  <brouard@ined.fr>          and life table from the data without any state)
   
         * imach.c:  Summary: Bug for young ages (<-30) will be in r17  2019-05-20  Brouard Nicolas  <brouard@ined.fr>
   
 2018-05-02  Brouard Nicolas  <brouard@ined.fr>          * version.h: Summary: version 0.99.r19
   
         * imach.c: Summary: Some bugs fixed          * imach.c: Summary: Projection syntax simplified
           We can now start projections, forward or backward, from the mean date
 2018-05-01  Brouard Nicolas  <brouard@ined.fr>          of inteviews up to or down to a number of years of projection:
           prevforecast=1 yearsfproj=15.3 mobil_average=0
         * imach.c:          or
         Summary: Bug fixed by providing frequencies only for non missing covariates          prevforecast=1 starting-proj-date=1/1/2007 final-proj-date=12/31/2017 mobil_average=0
           or
 2018-04-27  Brouard Nicolas  <brouard@ined.fr>          prevbackcast=1 yearsbproj=12.3 mobil_average=1
           or
         * imach.c: Summary: some minor bugs          prevbackcast=1 starting-back-date=1/10/1999 final-back-date=1/1/1985 mobil_average=1
   
 2018-04-21  Brouard Nicolas  <brouard@ined.fr>  2019-05-18  Brouard Nicolas  <brouard@ined.fr>
   
         * README.txt: *** empty log message ***          * imach.c: Summary: doxygen tex bug
   
         * imach.c: Summary: Some bugs fixed, valgrind tested  2019-05-16  Brouard Nicolas  <brouard@ined.fr>
   
 2018-04-20  Brouard Nicolas  <brouard@ined.fr>          * imach.c: Summary: There was some wrong lines added
   
         * Makefile, README.txt, setup.iss: Summary: imach 0.99r16  2019-05-09  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c:          * Makefile, imach.c: *** empty log message ***
         Summary: Computing mean and stdeviation of fixed quantitative variables  
           * ChangeLog: Summary: C=
 2018-04-19  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Some updates
         * imach.c: Summary: Some minor bugs fixed  
           * imach.c: Summary: Before ncovmax
         * version.h: *** empty log message ***  
           * version.h: *** empty log message ***
 2018-02-27  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: 0.99r18 unlimited number of individuals
         * imach.c: *** empty log message ***          The number n which was limited to 20,000 cases is now unlimited, from firstobs to lastobs. If the number is too for the virtual memory, probably an error will occur.
   
         * imach.c: Summary: Adding second argument for quitting  2018-12-13  Brouard Nicolas  <brouard@ined.fr>
   
 2018-02-21  Brouard Nicolas  <brouard@ined.fr>          * imach.c: Summary: Bug for young ages (<-30) will be in r17
   
         * Makefile, README.txt, imach.c: Summary: 0.99r15  2018-12-05  Brouard Nicolas  <brouard@ined.fr>
         New Makefile with recent VirtualBox 5.26. Bug in sqrt negatve in imach.c  
           * Makefile: Summary: 0.99r16
 2017-07-20  Brouard Nicolas  <brouard@ined.fr>  
   2018-05-02  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: temporary working  
           * imach.c: Summary: Some bugs fixed
 2017-07-19  Brouard Nicolas  <brouard@ined.fr>  
   2018-05-02  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Bug for mobil_average=0 and prevforecast fixed(?)  
           * imach.c:  Summary: Bug for young ages (<-30) will be in r17
 2017-07-17  Brouard Nicolas  <brouard@ined.fr>  
   2018-05-02  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: BOM files can be read now  
           * imach.c: Summary: Some bugs fixed
 2017-06-30  Brouard Nicolas  <brouard@ined.fr>  
   2018-05-01  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Graphs improvements  
           * imach.c:
         * imach.c: Summary: Saito's color          Summary: Bug fixed by providing frequencies only for non missing covariates
   
 2017-06-29  Brouard Nicolas  <brouard@ined.fr>  2018-04-27  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: Summary: Version 0.99r14          * imach.c: Summary: some minor bugs
   
 2017-06-27  Brouard Nicolas  <brouard@ined.fr>  2018-04-21  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: Summary: More documentation on projections          * README.txt: *** empty log message ***
   
         * imach.c: Summary: Color of backprojection changed from 6 to 5(yellow)          * imach.c: Summary: Some bugs fixed, valgrind tested
   
         * imach.c: Summary: Some bug with rint  2018-04-20  Brouard Nicolas  <brouard@ined.fr>
   
 2017-05-24  Brouard Nicolas  <brouard@ined.fr>          * Makefile, README.txt, setup.iss: Summary: imach 0.99r16
   
         * imach.c: *** empty log message ***          * imach.c:
           Summary: Computing mean and stdeviation of fixed quantitative variables
 2017-05-23  Brouard Nicolas  <brouard@ined.fr>  
   2018-04-19  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Code into subroutine, cleanings  
           * imach.c: Summary: Some minor bugs fixed
 2017-05-18  Brouard Nicolas  <brouard@ined.fr>  
           * version.h: *** empty log message ***
         * imach.c:  
         Summary: backprojection and confidence intervals of backprevalence  2018-02-27  Brouard Nicolas  <brouard@ined.fr>
   
 2017-05-13  Brouard Nicolas  <brouard@ined.fr>          * imach.c: *** empty log message ***
   
         * imach.c: Summary: temporary save for backprojection          * imach.c: Summary: Adding second argument for quitting
   
         * imach.c: Summary: Version 0.99r13 (improvements and bugs fixed)  2018-02-21  Brouard Nicolas  <brouard@ined.fr>
   
 2017-04-26  Brouard Nicolas  <brouard@ined.fr>          * Makefile, README.txt, imach.c: Summary: 0.99r15
           New Makefile with recent VirtualBox 5.26. Bug in sqrt negatve in imach.c
         * imach.c: Summary: imach 0.99r13 Some bugs fixed  
   2017-07-20  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Labels in graphs  
           * imach.c: Summary: temporary working
 2017-04-24  Brouard Nicolas  <brouard@ined.fr>  
   2017-07-19  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: to save  
           * imach.c: Summary: Bug for mobil_average=0 and prevforecast fixed(?)
 2017-04-18  Brouard Nicolas  <brouard@ined.fr>  
   2017-07-17  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: *** empty log message ***  
           * imach.c: Summary: BOM files can be read now
 2017-04-05  Brouard Nicolas  <brouard@ined.fr>  
   2017-06-30  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Bug in E_ as well as in T_ fixed nres-1 vs k1-1  
           * imach.c: Summary: Graphs improvements
 2017-04-04  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Saito's color
         * imach.c: Summary: Gnuplot indexations fixed (humm)  
   2017-06-29  Brouard Nicolas  <brouard@ined.fr>
         * imach.c:  
         Summary: Some errors to warnings only if date of death is unknown but status is death we could set to pi3          * imach.c: Summary: Version 0.99r14
   
 2017-04-03  Brouard Nicolas  <brouard@ined.fr>  2017-06-27  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: Summary: Version 0.99r12          * imach.c: Summary: More documentation on projections
         Some cleanings, conformed with updated documentation.  
           * imach.c: Summary: Color of backprojection changed from 6 to 5(yellow)
 2017-03-30  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Some bug with rint
         * version.h: *** empty log message ***  
   2017-05-24  Brouard Nicolas  <brouard@ined.fr>
         * version.h: Summary:0.99r11  
           * imach.c: *** empty log message ***
 2017-03-29  Brouard Nicolas  <brouard@ined.fr>  
   2017-05-23  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Temp  
           * imach.c: Summary: Code into subroutine, cleanings
 2017-03-27  Brouard Nicolas  <brouard@ined.fr>  
   2017-05-18  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Temporary  
           * imach.c:
 2017-03-08  Brouard Nicolas  <brouard@ined.fr>          Summary: backprojection and confidence intervals of backprevalence
   
         * imach.c: Summary: IMaCh version 0.99r10 bugs in gnuplot fixed  2017-05-13  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: Summary: Fixing data parameter line          * imach.c: Summary: temporary save for backprojection
   
 2016-12-15  Brouard Nicolas  <brouard@ined.fr>          * imach.c: Summary: Version 0.99r13 (improvements and bugs fixed)
   
         * imach.c: Summary: 0.99 in progress  2017-04-26  Brouard Nicolas  <brouard@ined.fr>
   
 2016-09-15  Brouard Nicolas  <brouard@ined.fr>          * imach.c: Summary: imach 0.99r13 Some bugs fixed
   
         * imach.c: *** empty log message ***          * imach.c: Summary: Labels in graphs
   
         * imach.c: Summary: not working  2017-04-24  Brouard Nicolas  <brouard@ined.fr>
   
 2016-09-08  Brouard Nicolas  <brouard@ined.fr>          * imach.c: Summary: to save
   
         * imach.c: Summary: continue  2017-04-18  Brouard Nicolas  <brouard@ined.fr>
   
 2016-09-07  Brouard Nicolas  <brouard@ined.fr>          * imach.c: *** empty log message ***
   
         * imach.c: Summary: Starting values from frequencies  2017-04-05  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: *** empty log message ***          * imach.c: Summary: Bug in E_ as well as in T_ fixed nres-1 vs k1-1
   
 2016-09-02  Brouard Nicolas  <brouard@ined.fr>  2017-04-04  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: *** empty log message ***          * imach.c: Summary: Gnuplot indexations fixed (humm)
   
 2016-08-30  Brouard Nicolas  <brouard@ined.fr>          * imach.c:
           Summary: Some errors to warnings only if date of death is unknown but status is death we could set to pi3
         * imach.c: Summary: Fixing a lots  
   2017-04-03  Brouard Nicolas  <brouard@ined.fr>
 2016-08-29  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Version 0.99r12
         * imach.c: Summary: gnuplot problem in Back projection to fix          Some cleanings, conformed with updated documentation.
   
         * imach.c: Summary: Better  2017-03-30  Brouard Nicolas  <brouard@ined.fr>
   
 2016-08-26  Brouard Nicolas  <brouard@ined.fr>          * version.h: *** empty log message ***
   
         * imach.c:          * version.h: Summary:0.99r11
         Summary: Improvement in Powell output in order to copy and paste  
   2017-03-29  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Starting tests of 0.99  
           * imach.c: Summary: Temp
         * imach.c: Summary: to valgrind  
   2017-03-27  Brouard Nicolas  <brouard@ined.fr>
 2016-08-25  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Temporary
         * imach.c: *** empty log message ***  
   2017-03-08  Brouard Nicolas  <brouard@ined.fr>
 2016-08-23  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: IMaCh version 0.99r10 bugs in gnuplot fixed
         * imach.c: *** empty log message ***  
           * imach.c: Summary: Fixing data parameter line
         * imach.c: Summary: not working  
   2016-12-15  Brouard Nicolas  <brouard@ined.fr>
 2016-08-22  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: 0.99 in progress
         * imach.c: Summary: not working  
   2016-09-15  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: Not working  
           * imach.c: *** empty log message ***
 2016-07-23  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: not working
         * imach.c: Summary: Completing for func too  
   2016-09-08  Brouard Nicolas  <brouard@ined.fr>
 2016-07-22  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: continue
         * imach.c: Summary: Fixing some arrays, still debugging  
   2016-09-07  Brouard Nicolas  <brouard@ined.fr>
 2016-07-21  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Starting values from frequencies
         * imach.c:  
         Summary: 0.99 working (more or less) for Asian Workshop on multitate methods          * imach.c: *** empty log message ***
   
 2016-07-12  Brouard Nicolas  <brouard@ined.fr>  2016-09-02  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: Summary: temp          * imach.c: *** empty log message ***
   
         * imach.c: Summary: saving but not running  2016-08-30  Brouard Nicolas  <brouard@ined.fr>
   
 2016-07-01  Brouard Nicolas  <brouard@ined.fr>          * imach.c: Summary: Fixing a lots
   
         * imach.c: Summary: Fixes  2016-08-29  Brouard Nicolas  <brouard@ined.fr>
   
 2016-02-19  Brouard Nicolas  <brouard@ined.fr>          * imach.c: Summary: gnuplot problem in Back projection to fix
   
         * imach-0.98r.c: Summary: Kind of 0.98r? series, starting with r7          * imach.c: Summary: Better
   
         * setup.iss, Makefile, version.h: *** empty log message ***  2016-08-26  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: Summary: temporary          * imach.c:
           Summary: Improvement in Powell output in order to copy and paste
 2016-02-17  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Starting tests of 0.99
         * imach.c: Summary: Probably last 0.98 stable version 0.98r6  
           * imach.c: Summary: to valgrind
 2016-02-16  Brouard Nicolas  <brouard@ined.fr>  
   2016-08-25  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: minor bug  
           * imach.c: *** empty log message ***
         * imach.c: Summary: 0.99r2  
   2016-08-23  Brouard Nicolas  <brouard@ined.fr>
 2016-02-15  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: *** empty log message ***
         * imach.c: *** empty log message ***  
           * imach.c: Summary: not working
 2016-02-12  Brouard Nicolas  <brouard@ined.fr>  
   2016-08-22  Brouard Nicolas  <brouard@ined.fr>
         * imach.c: Summary: 0.99 Back projections  
           * imach.c: Summary: not working
 2015-12-23  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Not working
         * imach.c: Summary: Experimental backcast  
   2016-07-23  Brouard Nicolas  <brouard@ined.fr>
 2015-12-18  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Completing for func too
         * imach.c: Summary: 0.98r4 Warning and status=-2  
   2016-07-22  Brouard Nicolas  <brouard@ined.fr>
         Version 0.98r4 is now:  
          - displaying an error when status is -1, date of interview unknown and date of death known;          * imach.c: Summary: Fixing some arrays, still debugging
          - permitting a status -2 when the vital status is unknown at a known date of right truncation.  
         Older changes concerning s=-2, dating from 2005 have been supersed.  2016-07-21  Brouard Nicolas  <brouard@ined.fr>
   
         * Makefile: *** empty log message ***          * imach.c:
           Summary: 0.99 working (more or less) for Asian Workshop on multitate methods
 2015-12-16  Brouard Nicolas  <brouard@ined.fr>  
   2016-07-12  Brouard Nicolas  <brouard@ined.fr>
         * Makefile: *** empty log message ***  
           * imach.c: Summary: temp
         * imach.c: Summary: 0.98r4 working  
           * imach.c: Summary: saving but not running
         * Makefile: Summary: linuxrpm added  
   2016-07-01  Brouard Nicolas  <brouard@ined.fr>
         * Makefile: *** empty log message ***  
           * imach.c: Summary: Fixes
         * imach.c: Summary: temporary not working  
   2016-02-19  Brouard Nicolas  <brouard@ined.fr>
 2015-12-11  Brouard Nicolas  <brouard@ined.fr>  
           * imach-0.98r.c: Summary: Kind of 0.98r? series, starting with r7
         * imach.c: Summary: 0.98r4  
           * setup.iss, Makefile, version.h: *** empty log message ***
 2015-12-08  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: temporary
         * Makefile: *** empty log message ***  
   2016-02-17  Brouard Nicolas  <brouard@ined.fr>
 2015-11-21  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: Probably last 0.98 stable version 0.98r6
         * Makefile:  
         Summary: VBoxManage change from execute --image to run --exe and --wait-exit doesn't exist any more  2016-02-16  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c: Summary: minor typo          * imach.c: Summary: minor bug
   
         * imach.c: Summary: 0.98r3 with some graph of projected cross-sectional          * imach.c: Summary: 0.99r2
   
         Author: Nicolas Brouard  2016-02-15  Brouard Nicolas  <brouard@ined.fr>
   
 2015-11-18  Brouard Nicolas  <brouard@ined.fr>          * imach.c: *** empty log message ***
   
         * imach.c: Summary: Start working on projected prevalences  2016-02-12  Brouard Nicolas  <brouard@ined.fr>
   
 2015-11-17  Brouard Nicolas  <brouard@ined.fr>          * imach.c: Summary: 0.99 Back projections
   
         * imach.c: Summary: Adding ftolpl parameter  2015-12-23  Brouard Nicolas  <brouard@ined.fr>
         Author: N Brouard  
           * imach.c: Summary: Experimental backcast
         We had difficulties to get smoothed confidence intervals. It was due  
         to the period prevalence which wasn't computed accurately. The inner  2015-12-18  Brouard Nicolas  <brouard@ined.fr>
         parameter ftolpl is now an outer parameter of the .imach parameter  
         file after estepm. If ftolpl is small 1.e-4 and estepm too,          * imach.c: Summary: 0.98r4 Warning and status=-2
         computation are long.  
           Version 0.98r4 is now:
         * version.h: *** empty log message ***           - displaying an error when status is -1, date of interview unknown and date of death known;
            - permitting a status -2 when the vital status is unknown at a known date of right truncation.
         * imach.c: Summary: temporary          Older changes concerning s=-2, dating from 2005 have been supersed.
   
 2015-10-27  Brouard Nicolas  <brouard@ined.fr>          * Makefile: *** empty log message ***
   
         * Makefile: *** empty log message ***  2015-12-16  Brouard Nicolas  <brouard@ined.fr>
   
         * setup.iss.in: Summary: some new subdirs          * Makefile: *** empty log message ***
   
         * imach.c: *** empty log message ***          * imach.c: Summary: 0.98r4 working
   
         * setup.iss.in:          * Makefile: Summary: linuxrpm added
         Summary: Adding gnuplot 5.1 with bin and etc for pango fonts  
           * Makefile: *** empty log message ***
 2015-10-24  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: temporary not working
         * imach.c: *** empty log message ***  
   2015-12-11  Brouard Nicolas  <brouard@ined.fr>
 2015-10-23  Brouard Nicolas  <brouard@ined.fr>  
           * imach.c: Summary: 0.98r4
         * imach.c:  
         Summary: 0.98r3 some clarification for graphs on likelihood contributions  2015-12-08  Brouard Nicolas  <brouard@ined.fr>
   
 2015-10-01  Brouard Nicolas  <brouard@ined.fr>          * Makefile: *** empty log message ***
   
         * imach.c: Summary: Some new graphs of contribution to likelihood  2015-11-21  Brouard Nicolas  <brouard@ined.fr>
   
 2015-09-30  Brouard Nicolas  <brouard@ined.fr>          * Makefile:
           Summary: VBoxManage change from execute --image to run --exe and --wait-exit doesn't exist any more
         * Makefile:  
         Summary: Version read from version.h, itself read with cmake          * imach.c: Summary: minor typo
   
         * imach.c: Summary: looking at better estimation of the hessian          * imach.c: Summary: 0.98r3 with some graph of projected cross-sectional
   
         Also a better criteria for convergence to the period prevalence And          Author: Nicolas Brouard
         therefore adding the number of years needed to converge. (The  
         prevalence in any alive state shold sum to one  2015-11-18  Brouard Nicolas  <brouard@ined.fr>
   
         * Makefile: *** empty log message ***          * imach.c: Summary: Start working on projected prevalences
   
 2015-09-22  Brouard Nicolas  <brouard@ined.fr>  2015-11-17  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c:          * imach.c: Summary: Adding ftolpl parameter
         Summary: Adding some overall graph on contribution to likelihood. Might change          Author: N Brouard
   
 2015-09-15  Brouard Nicolas  <brouard@ined.fr>          We had difficulties to get smoothed confidence intervals. It was due
           to the period prevalence which wasn't computed accurately. The inner
         * Makefile: *** empty log message ***          parameter ftolpl is now an outer parameter of the .imach parameter
           file after estepm. If ftolpl is small 1.e-4 and estepm too,
         * imach.c: Summary: 0.98r0          computation are long.
   
         - Some new graphs like suvival functions          * version.h: *** empty log message ***
         - Some bugs fixed like model=1+age+V2.  
           * imach.c: Summary: temporary
         * ChangeLog, Makefile: Summary: 0.98r0  
   2015-10-27  Brouard Nicolas  <brouard@ined.fr>
         * CMakeLists.txt: Summary: Some tests for setup.iss  
           * Makefile: *** empty log message ***
 2015-09-15  Nicolas J Brouard   <nbrouard@tugault.ined.fr>  
           * setup.iss.in: Summary: some new subdirs
         *  (Module): 0.98r0 Some new graphs, some bugs fixed: model=1+age+V2. etc  
           * imach.c: *** empty log message ***
 2015-08-18  Nicolas J Brouard   <nbrouard@tugault.local>  
           * setup.iss.in:
         *  (Module): Adding error when the covariance matrix doesn't contain the exact number of lines required by the model line.          Summary: Adding gnuplot 5.1 with bin and etc for pango fonts
   
 2015-08-03  Nicolas J Brouard   <nbrouard@tugault.ined.fr>  2015-10-24  Brouard Nicolas  <brouard@ined.fr>
   
         *  (Module): Changing Variance of one-step probabilities into Standard deviation (thanks to Yao-Chi Shih)          * imach.c: *** empty log message ***
   
 2014-12-16  Nicolas J Brouard   <nbrouard@tugault.local>  2015-10-23  Brouard Nicolas  <brouard@ined.fr>
   
         * imach.c (Module): Merging 1.61 to 1.162          * imach.c:
           Summary: 0.98r3 some clarification for graphs on likelihood contributions
 2014-09-02  Nicolas J Brouard   <nbrouard@njbrouard.ined.fr>  
   2015-10-01  Brouard Nicolas  <brouard@ined.fr>
         * prevlim.h (Module):  
           * imach.c: Summary: Some new graphs of contribution to likelihood
 2014-01-26  Nicolas J Brouard   <nbrouard@ledermann-2.local>  
   2015-09-30  Brouard Nicolas  <brouard@ined.fr>
         * imach.c (Module): Trying to merge old staffs together while being at Tokyo. Not tested...  
         (Module): Version 0.98nR Running ok, but output format still only works for three covariates.          * Makefile:
           Summary: Version read from version.h, itself read with cmake
 2010-04-29  brouard  <brouard@ined.fr>  
           * imach.c: Summary: looking at better estimation of the hessian
         * imach.c (Module): Checking covariates for more complex models  
         than V1+V2. A lot of change to be done. Unstable.          Also a better criteria for convergence to the period prevalence And
           therefore adding the number of years needed to converge. (The
 2010-04-26  brouard  <brouard@ined.fr>          prevalence in any alive state shold sum to one
   
         * imach.c (Module): merging some libgsl code. Fixing computation          * Makefile: *** empty log message ***
         of likelione (using inter/intrapolation if mle = 0) in order to  
         get same likelihood as if mle=1.  2015-09-22  Brouard Nicolas  <brouard@ined.fr>
         Some cleaning of code and comments added.  
           * imach.c:
 2009-10-29  brouard  <brouard@ined.fr>          Summary: Adding some overall graph on contribution to likelihood. Might change
   
         * imach.c (Module): Now imach stops if date of birth, at least year of birth, is not given. Some cleaning of the code.  2015-09-15  Brouard Nicolas  <brouard@ined.fr>
   
 2006-06-30  Brouard Nicolas  <brouard@localhost>          * Makefile: *** empty log message ***
   
         * imach.c (Module): Clarifications on computing e.j          * imach.c: Summary: 0.98r0
   
 2006-04-28  Brouard Nicolas  <brouard@localhost>          - Some new graphs like survival functions
           - Some bugs fixed like model=1+age+V2.
         * imach.c (Module): Yes the sum of survivors was wrong since  
         imach-114 because nhstepm was no more computed in the age          * ChangeLog, Makefile: Summary: 0.98r0
         loop. Now we define nhstepma in the age loop.  
         (Module): In order to speed up (in case of numerous covariates) we          * CMakeLists.txt: Summary: Some tests for setup.iss
         compute health expectancies (without variances) in a first step  
         and then all the health expectancies with variances or standard  2015-09-15  Nicolas J Brouard   <nbrouard@tugault.ined.fr>
         deviation (needs data from the Hessian matrices) which slows the  
         computation.          *  (Module): 0.98r0 Some new graphs, some bugs fixed: model=1+age+V2. etc
         In the future we should be able to stop the program is only health  
         expectancies and graph are needed without standard deviations.  2015-08-18  Nicolas J Brouard   <nbrouard@tugault.local>
   
 2006-04-04  LIEVRE Agnes  <lievre@PC_00697.ined.fr>          *  (Module): Adding error when the covariance matrix doesn't contain the exact number of lines required by the model line.
   
         * imach.iss (Module):  2015-08-03  Nicolas J Brouard   <nbrouard@tugault.ined.fr>
   
         * imach.c (Module): bugs in evsi + population file added in htm output file          *  (Module): Changing Variance of one-step probabilities into Standard deviation (thanks to Yao-Chi Shih)
   
 2006-03-22  LIEVRE Agnes  <lievre@PC_00697.ined.fr>  2014-12-16  Nicolas J Brouard   <nbrouard@tugault.local>
   
         * imach.c (Module):          * imach.c (Module): Merging 1.61 to 1.162
   
 2006-03-20  Brouard Nicolas  <brouard@localhost>  2014-09-02  Nicolas J Brouard   <nbrouard@njbrouard.ined.fr>
   
         * imach.c (Module): <title> changed, corresponds to .htm file          * prevlim.h (Module): 
         name. <head> headers where missing.  
   2014-01-26  Nicolas J Brouard   <nbrouard@ledermann-2.local>
         * Makefile (Module): 0.98g  
           * imach.c (Module): Trying to merge old staffs together while being at Tokyo. Not tested...
         * imach.c (Module): Weights can have a decimal point as for          (Module): Version 0.98nR Running ok, but output format still only works for three covariates.
         English (a comma might work with a correct LC_NUMERIC environment,  
         otherwise the weight is truncated).  2010-04-29  brouard  <brouard@ined.fr>
         Modification of warning when the covariates values are not 0 or  
         1.          * imach.c (Module): Checking covariates for more complex models
         Version 0.98g          than V1+V2. A lot of change to be done. Unstable.
   
 2006-03-16  LIEVRE Agnes  <lievre@PC_00697.ined.fr>  2010-04-26  brouard  <brouard@ined.fr>
   
         * imach.c (Module): Comments concerning covariates added          * imach.c (Module): merging some libgsl code. Fixing computation
           of likelione (using inter/intrapolation if mle = 0) in order to
         * noreg-setup.iss (Module): Version 0.98f          get same likelihood as if mle=1.
           Some cleaning of code and comments added.
         * Makefile (Module): Version 0.98f make _windows=1 imachcyg-setup  
   2009-10-29  brouard  <brouard@ined.fr>
         * imach.c (Module): refinements in the computation of lli if  
         status=-2 in order to have more reliable computation if stepm is          * imach.c (Module): Now imach stops if date of birth, at least year of birth, is not given. Some cleaning of the code.
         not 1 month. Version 0.98f  
   2006-06-30  Brouard Nicolas  <brouard@localhost>
 2006-03-15  Brouard Nicolas  <brouard@localhost>  
           * imach.c (Module): Clarifications on computing e.j
         * imach.c (Module): Bug if status = -2, the loglikelihood was  
         computed as likelihood omitting the logarithm. Version O.98e  2006-04-28  Brouard Nicolas  <brouard@localhost>
   
 2006-03-14  Brouard Nicolas  <brouard@localhost>          * imach.c (Module): Yes the sum of survivors was wrong since
           imach-114 because nhstepm was no more computed in the age
         * imach.c (Module): varevsij Comments added explaining the second          loop. Now we define nhstepma in the age loop.
         table of variances if popbased=1 .          (Module): In order to speed up (in case of numerous covariates) we
         (Module): Covariances of eij, ekl added, graphs fixed, new html link.          compute health expectancies (without variances) in a first step
         (Module): Function pstamp added          and then all the health expectancies with variances or standard
         (Module): Version 0.98d          deviation (needs data from the Hessian matrices) which slows the
           computation.
 2006-03-06  Brouard Nicolas  <brouard@localhost>          In the future we should be able to stop the program is only health
           expectancies and graph are needed without standard deviations.
         * imach.c (Module): Variance-covariance wrong links and  
         varian-covariance of ej. is needed (Saito).  2006-04-04  LIEVRE Agnes  <lievre@PC_00697.ined.fr>
   
 2006-02-27  Brouard Nicolas  <brouard@localhost>          * imach.iss (Module): 
   
         * imach.c (Module): One freematrix added in mlikeli!          * imach.c (Module): bugs in evsi + population file added in htm output file
   
 2006-02-26  Brouard Nicolas  <brouard@localhost>  2006-03-22  LIEVRE Agnes  <lievre@PC_00697.ined.fr>
   
         * imach.c (Module): Some improvements in processing parameter          * imach.c (Module): 
         filename with strsep.  
   2006-03-20  Brouard Nicolas  <brouard@localhost>
 2006-02-24  Brouard Nicolas  <brouard@localhost>  
           * imach.c (Module): <title> changed, corresponds to .htm file
         * imach.c (Module): Memory leaks checks with valgrind and:          name. <head> headers where missing.
         datafile was not closed, some imatrix were not freed and on matrix  
         allocation too.          * Makefile (Module): 0.98g
   
 2006-02-09  LIEVRE Agnes  <lievre@PC_00697.ined.fr>          * imach.c (Module): Weights can have a decimal point as for
           English (a comma might work with a correct LC_NUMERIC environment,
         * strsep.c (Module): Inclusion because not in mingw32!!!          otherwise the weight is truncated).
           Modification of warning when the covariates values are not 0 or
         * setup.iss.in (Module): IMACHSETUPVERSION added          1. 
           Version 0.98g
         * noreg-setup.iss (Module): added to cvs tree  
   2006-03-16  LIEVRE Agnes  <lievre@PC_00697.ined.fr>
         * Makefile (Module): IMACHSETUPVERSION added  
           * imach.c (Module): Comments concerning covariates added
 2006-01-30  BROUARD Nicolas  <brouard@localhost>  
           * noreg-setup.iss (Module): Version 0.98f
         * Makefile (Module, Module): Latest Makefile  
           * Makefile (Module): Version 0.98f make _windows=1 imachcyg-setup
         * imach.c (Module): Back to gnuplot.exe instead of wgnuplot.exe  
           * imach.c (Module): refinements in the computation of lli if
 2006-01-27  BROUARD Nicolas  <brouard@localhost>          status=-2 in order to have more reliable computation if stepm is
           not 1 month. Version 0.98f
         * noreg-setup.iss (Module): ADDED  
   2006-03-15  Brouard Nicolas  <brouard@localhost>
 2006-01-24  BROUARD Nicolas  <brouard@localhost>  
           * imach.c (Module): Bug if status = -2, the loglikelihood was
         * imach.c (Module): Comments (lines starting with a #) are allowed in data.          computed as likelihood omitting the logarithm. Version O.98e
   
 2005-10-25  Nicolas Brouard  <brouard@dhcp171.recherche.ined.fr>  2006-03-14  Brouard Nicolas  <brouard@localhost>
   
         * Makefile (Module): Added Imach98.pmsp and howto crete a dmg          * imach.c (Module): varevsij Comments added explaining the second
           table of variances if popbased=1 .
         * createdmg.sh (Module): Creates a dmg disk for MaC OS/X          (Module): Covariances of eij, ekl added, graphs fixed, new html link.
           (Module): Function pstamp added
 2005-09-30    <lievre@PC_00595>          (Module): Version 0.98d 
   
         * imach.c (Module): sump fixed, loop imx fixed, and simplifications.  2006-03-06  Brouard Nicolas  <brouard@localhost>
         (Module): If the status is missing at the last wave but we know  
         that the person is alive, then we can code his/her status as -2          * imach.c (Module): Variance-covariance wrong links and
         (instead of missing=-1 in earlier versions) and his/her          varian-covariance of ej. is needed (Saito).
         contributions to the likelihood is 1 - Prob of dying from last  
         health status (= 1-p13= p11+p12 in the easiest case of somebody in  2006-02-27  Brouard Nicolas  <brouard@localhost>
         the healthy state at last known wave). Version is 0.98  
           * imach.c (Module): One freematrix added in mlikeli!
 2004-05-20  Brouard Nicolas  <brouard@localhost>  
   2006-02-26  Brouard Nicolas  <brouard@localhost>
         * imach.c (Repository):  
         Agnes added a direct estimation of mortality (without the need of          * imach.c (Module): Some improvements in processing parameter
         computing period prevalence and differential mortality). Thus here          filename with strsep.
         is version 0.97a which has been distributed to some people at  
         REVES 16 in Brugge using an Inno setup.exe for PCs. Estimates of  2006-02-24  Brouard Nicolas  <brouard@localhost>
         mortality using covariates is not done today. Estimating direct  
         mortality is a very different process because it doesn't need          * imach.c (Module): Memory leaks checks with valgrind and:
         interpolation because it is easy to get the lx from the force of          datafile was not closed, some imatrix were not freed and on matrix
         the mortality mux in the simplest case as for a Gompertz (log mux          allocation too.
         = a + b*x . But we have been able to incorporate the new code  
         within former imach program (0.96d) without deteriorating too much  2006-02-09  LIEVRE Agnes  <lievre@PC_00697.ined.fr>
         the understanding of the program.  
           * strsep.c (Module): Inclusion because not in mingw32!!!
 2003-06-25    <brouard@BROUARD>  
           * setup.iss.in (Module): IMACHSETUPVERSION added
         * imach.c (Module): On windows (cygwin) function asctime_r doesn't  
         exist so I changed back to asctime which exists.          * noreg-setup.iss (Module): added to cvs tree
         (Module): Version 0.96b  
           * Makefile (Module): IMACHSETUPVERSION added
 2003-06-24    <brouard@BROUARD>  
   2006-01-30  BROUARD Nicolas  <brouard@localhost>
         * imach.c (Module): Some bugs corrected for windows. Also, when  
         mle=-1 a template is output in file "or"mypar.txt with the design          * Makefile (Module, Module): Latest Makefile
         of the covariance matrix to be input.  
           * imach.c (Module): Back to gnuplot.exe instead of wgnuplot.exe
 2003-06-25  Brouard Nicolas  <brouard@homebrou>  
   2006-01-27  BROUARD Nicolas  <brouard@localhost>
         * imach.c (Repository): Duplicated warning errors corrected.  
         (Repository): Elapsed time after each iteration is now output. It          * noreg-setup.iss (Module): ADDED
         helps to forecast when convergence will be reached. Elapsed time  
         is stamped in powell.  We created a new html file for the graphs  2006-01-24  BROUARD Nicolas  <brouard@localhost>
         concerning matrix of covariance. It has extension -cov.htm.  
           * imach.c (Module): Comments (lines starting with a #) are allowed in data.
 2003-06-23  Brouard Nicolas  <brouard@homebrou>  
   2005-10-25  Nicolas Brouard  <brouard@dhcp171.recherche.ined.fr>
         * imach.c (Repository): Create a sub-directory where all the secondary files are. Only imach, htm, gp and r(imach) are on the main directory. Correct time and other things.  
           * Makefile (Module): Added Imach98.pmsp and howto crete a dmg
 2003-06-18  Brouard Nicolas  <brouard@homebrou>  
           * createdmg.sh (Module): Creates a dmg disk for MaC OS/X
         * imach.c (Repository): Suppress abusive calls to append to file html (solution was to put fichtm as a global variable. Version 0.96  
   2005-09-30    <lievre@PC_00595>
 2003-06-17  Brouard Nicolas  <brouard@homebrou>  
           * imach.c (Module): sump fixed, loop imx fixed, and simplifications.
           (Module): If the status is missing at the last wave but we know
         * imach.c (Repository): Check when date of death was earlier that          that the person is alive, then we can code his/her status as -2
         current date of interview. It may happen when the death was just          (instead of missing=-1 in earlier versions) and his/her
         prior to the death. In this case, dh was negative and likelihood          contributions to the likelihood is 1 - Prob of dying from last
         was wrong (infinity). We still send an "Error" but patch by          health status (= 1-p13= p11+p12 in the easiest case of somebody in
         assuming that the date of death was just one stepm after the          the healthy state at last known wave). Version is 0.98 
         interview.  
         (Repository): Because some people have very long ID (first column)  2004-05-20  Brouard Nicolas  <brouard@localhost>
         we changed int to long in num[] and we added a new lvector for  
         memory allocation. But we also truncated to 8 characters (left          * imach.c (Repository): 
         truncation)          Agnes added a direct estimation of mortality (without the need of
           computing period prevalence and differential mortality). Thus here
         (Repository): No more line truncation errors.          is version 0.97a which has been distributed to some people at
           REVES 16 in Brugge using an Inno setup.exe for PCs. Estimates of
 2003-06-14  Brouard Nicolas  <brouard@homebrou>          mortality using covariates is not done today. Estimating direct
           mortality is a very different process because it doesn't need
         * imach.c (Repository): Add of a routine likelione (likelihood          interpolation because it is easy to get the lx from the force of
         only once) which prints on a text file          the mortality mux in the simplest case as for a Gompertz (log mux
         (ilk) the contributions to the likelihood for each          = a + b*x . But we have been able to incorporate the new code
         individual/wave.          within former imach program (0.96d) without deteriorating too much
           the understanding of the program. 
 2003-06-13  Brouard Nicolas  <brouard@homebrou>  
         * imach.c (Repository): Replace "freqsummary" at a correct  2003-06-25    <brouard@BROUARD>
         place. It differs from routine "prevalence" which may be called  
         many times. Probs is memory consuming and must be used with          * imach.c (Module): On windows (cygwin) function asctime_r doesn't
         parcimony.          exist so I changed back to asctime which exists.
           (Module): Version 0.96b
 2003-06-17    <brouard@BROUARD>  
   2003-06-24    <brouard@BROUARD>
         * timeval.h (Module): Added included file to make use of  
         gettimeofday working on win32 with cygwin.          * imach.c (Module): Some bugs corrected for windows. Also, when
           mle=-1 a template is output in file "or"mypar.txt with the design
 2003-05-16  Brouard Nicolas  <brouard@brouard>          of the covariance matrix to be input.
         * imach.c (Module): Insert of a warning if the delay between two  
         waves is negative.  2003-06-25  Brouard Nicolas  <brouard@homebrou>
   
         * imach.c (Module):          * imach.c (Repository): Duplicated warning errors corrected.
           (Repository): Elapsed time after each iteration is now output. It
 2003-05-03    <brouard@BROUARD>          helps to forecast when convergence will be reached. Elapsed time
           is stamped in powell.  We created a new html file for the graphs
         * imach.c: Some cleaning          concerning matrix of covariance. It has extension -cov.htm.
   
 2003-03-28    <brouard@BROUARD>  2003-06-23  Brouard Nicolas  <brouard@homebrou>
         * imach.c (Module): In version up to 0.92 likelihood was computed  
         as if date of death was unknown. Death was treated as any other          * imach.c (Repository): Create a sub-directory where all the secondary files are. Only imach, htm, gp and r(imach) are on the main directory. Correct time and other things.
         health state: the date of the interview describes the actual state  
         and not the date of a change in health state. The former idea was  2003-06-18  Brouard Nicolas  <brouard@homebrou>
         to consider that at each interview the state was recorded  
         (healthy, disable or death) and IMaCh was corrected; but when we          * imach.c (Repository): Suppress abusive calls to append to file html (solution was to put fichtm as a global variable. Version 0.96
         introduced the exact date of death then we should have modified  
         the contribution of an exact death to the likelihood. This new  2003-06-17  Brouard Nicolas  <brouard@homebrou>
         contribution is smaller and very dependent of the step unit  
         stepm. It is no more the probability to die between last interview  
         and month of death but the probability to survive from last          * imach.c (Repository): Check when date of death was earlier that
         interview up to one month before death multiplied by the          current date of interview. It may happen when the death was just
         probability to die within a month. Thanks to Chris          prior to the death. In this case, dh was negative and likelihood
         Jackson for correcting this bug.  Former versions increased          was wrong (infinity). We still send an "Error" but patch by
         mortality artificially. The bad side is that we add another loop          assuming that the date of death was just one stepm after the
           interview.
           (Repository): Because some people have very long ID (first column)
         which slows down the processing. The difference can be up to 10%          we changed int to long in num[] and we added a new lvector for
           memory allocation. But we also truncated to 8 characters (left
           truncation)
         lower mortality.  
           (Repository): No more line truncation errors.
   
   2003-06-14  Brouard Nicolas  <brouard@homebrou>
   
           * imach.c (Repository): Add of a routine likelione (likelihood
 2002-05-30    <brouard@BROUARD>          only once) which prints on a text file
           (ilk) the contributions to the likelihood for each
           individual/wave.
   
   2003-06-13  Brouard Nicolas  <brouard@homebrou>
           * imach.c (Repository): Replace "freqsummary" at a correct
         *          place. It differs from routine "prevalence" which may be called
           many times. Probs is memory consuming and must be used with
           parcimony.
   
   2003-06-17    <brouard@BROUARD>
   
         * imach.c (Module): Add correlation matrix of one-step          * timeval.h (Module): Added included file to make use of
           gettimeofday working on win32 with cygwin.
   
         probabilities and covariance matrix  2003-05-16  Brouard Nicolas  <brouard@brouard>
           * imach.c (Module): Insert of a warning if the delay between two
           waves is negative.
   
           * imach.c (Module): 
   
   2003-05-03    <brouard@BROUARD>
   
           * imach.c: Some cleaning
   
   2003-03-28    <brouard@BROUARD>
           * imach.c (Module): In version up to 0.92 likelihood was computed
           as if date of death was unknown. Death was treated as any other
           health state: the date of the interview describes the actual state
           and not the date of a change in health state. The former idea was
           to consider that at each interview the state was recorded
           (healthy, disable or death) and IMaCh was corrected; but when we
           introduced the exact date of death then we should have modified
           the contribution of an exact death to the likelihood. This new
           contribution is smaller and very dependent of the step unit
           stepm. It is no more the probability to die between last interview
           and month of death but the probability to survive from last
           interview up to one month before death multiplied by the
           probability to die within a month. Thanks to Chris
           Jackson for correcting this bug.  Former versions increased
           mortality artificially. The bad side is that we add another loop
           which slows down the processing. The difference can be up to 10%
           lower mortality.
   
   2002-05-30    <brouard@BROUARD>
           * 
           * imach.c (Module): Add correlation matrix of one-step
           probabilities and covariance matrix
   
   
   
   
   
Removed from v.1.44  
changed lines
  Added in v.1.54

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