*------------------- begin example -------------------------------
drop _all
input id time died TREAT1 TREAT2 TREAT3 TREAT4
1 42 0 5 17 23 8
2 56 1 9 3 22 16
3 12 1 7 11 6 .
end
stset time, failure(died) id(id)
stsplit period, at(6 12 24)
bys id (period): gen treat = TREAT1 if _n == 1
forvalues i = 2/4 {
bys id (period): replace treat = TREAT`i' if _n == `i'
}
list
*----------------------- 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 )
In the code above I made a variable treat, in subsequent analysis you
use the variable treat instead of TREAT1-TREAT4.
Hope this helps,
Maarten
--- Allan Garland <[email protected]> wrote:
> Salah,
>
> Thanks for your answer. The problem with that solution is that I
> need to separately assess the impact of each treatment. Any other
> ideas?
>
> Allan
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
-----------------------------------------
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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*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
