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    1: 2003-06-17    <brouard@BROUARD>
    2: 
    3: 	* timeval.h (Module): Added included file to make use of
    4: 	gettimeofday working on win32 with cygwin.
    5: 
    6: 2003-05-16  Brouard Nicolas  <brouard@brouard>
    7: 
    8: 	* imach.c (Module): Insert of a warning if the delay between two
    9: 	waves is negative.
   10: 
   11: 	* imach.c (Module): 
   12: 
   13: 2003-05-03    <brouard@BROUARD>
   14: 
   15: 	* imach.c: Some cleaning
   16: 2003-03-28    <brouard@BROUARD>
   17: 
   18: 	* imach.c (Module): In version up to 0.92 likelihood was computed
   19: 	as if date of death was unknown. Death was treated as any other
   20: 	health state: the date of the interview describes the actual state
   21: 	and not the date of a change in health state. The former idea was
   22: 	to consider that at each interview the state was recorded
   23: 	(healthy, disable or death) and IMaCh was corrected; but when we
   24: 	introduced the exact date of death then we should have modified
   25: 	the contribution of an exact death to the likelihood. This new
   26: 	contribution is smaller and very dependent of the step unit
   27: 	stepm. It is no more the probability to die between last interview
   28: 	and month of death but the probability to survive from last
   29: 	interview up to one month before death multiplied by the
   30: 	probability to die within a month. Thanks to Chris
   31: 	Jackson for correcting this bug.  Former versions increased
   32: 	mortality artificially. The bad side is that we add another loop
   33: 	which slows down the processing. The difference can be up to 10%
   34: 	lower mortality.
   35: 
   36: 2002-05-30    <brouard@BROUARD>
   37: 
   38: 	* 
   39: 
   40: 	* imach.c (Module): Add correlation matrix of one-step
   41: 	probabilities and covariance matrix
   42: