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st: Re: stset: I can't get rid of a probable error


From   Friedrich Huebler <[email protected]>
To   [email protected]
Subject   st: Re: stset: I can't get rid of a probable error
Date   Fri, 28 Jan 2005 07:47:41 -0800 (PST)

Martin,

Do you have cases where J_Heirat > JScheidung?

Friedrich Huebler

--- Martin Neugebauer <[email protected]> wrote:
> Hopefully somebody can help me out with this:
> 
> I am trying to estimate the average marriage time until divorce.
> When I 
> run the stset command, I always get the following "probable error":
> 
> id:  respid
>       failure event:  failed == 1
> obs. time interval:  (date0, date1]
>   exit on or before:  failure
>      t for analysis:  (time-origin)
>              origin:  time date0
>                  if:  partnr==minpart
> 
>
------------------------------------------------------------------------------
>       7277  total obs.
>         10  overlapping records (date1[_n-1]>date0)  PROBABLE ERROR
>        468  ignored per request (if(), etc.)
>
------------------------------------------------------------------------------
>       6799  obs. remaining, representing
>       6799  subjects
>       1067  failures in single failure-per-subject data
>   116093.5  total analysis time at risk, at risk from t =         0
>                               earliest observed entry t =         0
>                                    last observed exit t =        49
> 
> What does Stata mean by "overlapping records (date1[_n-1]>date0)"?
> How 
> can I solve the probable error?
> 
> (do-file):
> 
> gen failed=1
> replace failed=0 if  JScheidung==.
> replace failed=9 if   JSterbe <=2000
> gen date0= J_Heirat
> gen date1= JScheidung
> replace date1= 2000 if JScheidung==.
> replace date1= JSterbe if JSterbe<=2000
> drop if date0==.
> drop if date1==.
> replace date1=date1+ .5 if date1==date0
> sort respid partnr
> by respid (partnr):  gen minpart=partnr[1]
> stset date1, id(respid) time0(date0) origin (time date0) failure 
> (failed==1) if(partnr==minpart)
> 
> Thank you!



		
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