--- Ziad El-Khatib <[email protected]> wrote:
> Scoring = to have sum of n pills at week 24.
> Week 24 data is included, i.e.
> 4,8,12,16,20 & 24
*----------------- begin example -------------
drop _all
input studyid week npill1 npill2
1001 4 1 1
1001 8 0 1
1001 12 0 0
1001 16 0 0
1001 20 0 0
1001 24 0 0
1002 4 1 1
1002 8 0 1
1002 12 0 0
1002 16 0 0
1002 20 1 0
1002 24 1 0
end
gen npill1_2 = npill1 + npill2
egen tpill1 = total(npill1), by(studyid)
egen tpill2 = total(npill2), by(studyid)
egen tpill1_2 = total(npill1_2), by(studyid)
list, clean
*------------------- end example ---------------
(For more on how to use examples I sent to the Statalist, see
http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )
Hope this helps,
Maarten
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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