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Re: st: need little help


From   Edwin Leuven <e.leuven@uva.nl>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: need little help
Date   Wed, 23 Apr 2003 13:41:10 +0200

by id, sort: g abmed = ((sum(amed)>0) + (sum(bmed)>0))>1 

On Wed Apr 23 2003 13:20, Giulio Rizzoli wrote:
> I have several records per id: At subsequent times my patient
> have received the medication amed or bmed
> In the last record within id I woul'd like to generate
> a variable abmed wich will be 1 (or some value x) only if the  patient
> has in the prior records experinced the use of both amed and bmed or will
> be 0 otherwise.
>
> id time amed bmed abmed
> 10  81  1	  0     .
> 10  87  0	  1     .
> 10  83  0	  1     1
> 11  70  0	  1     .
> 11  76  0	  1	  .
> 11  84  1	  0     .
> 11  99  1	  0     1
> 12  88  1     0	  .
> 12  98  1	  0     0
>
> thank you
>       Giulio Rizzoli
>
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