Hi,
I suppose you want to count for each patient how many t's are greater than
zero ?? The proposed solution
. count if t >0 & t<.
(saved in r(N))
works only if there is one observation per patient.
The following will give you how many t>0 for each patient
tabstat patient if t>0, statistics( count ) by(patient) columns(variables)
hope this helps
Rajesh
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Johannes Geyer
Sent: 26 March 2008 16:05
To: [email protected]
Subject: Re: st: Re: Loop syntax
I have some results on 236 patients and each patient has 57 recordings
stored in a single variable t. I am trying to count how many of these
patients have a score of t>0. I tried the following code:
gen tcount=0
forvalues i=1/236{
forvalues j=1/57{
if patient==`i' & t>0 {
then tcount==tcount+1
continue
}
I think a loop is unnecessary here - you just want to count, right? There
are many solutions, e.g.
count if t >0 & t<.
(saved in r(N))
Johannes
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