-stdes- will give you that proportion.
-- Maarten
--- Michael McCulloch <[email protected]> wrote:
> Hi,
> I would like to learn how to identify the last observation of each
> individual subject within a longitudinal data set.
>
> I'm using the hip2.dta data set, and have run _stsplit_ to create
> one observation per failure time for each subject. Note that subject
> id==1 observed a failure during observation time, whereas subject
> id==48 did not.
>
> use hip2.dta, clear
> stsplit, at(failures) riskset(riskid)
> sort id time0
> list id time0 time1 protect fracture if id==1 | id==48
>
> In order to estimate a subject's probability of being censored, I
> will create a new variable, C, which is equal to zero for a subject's
>
> last failure time if the subject was not censored, and is equal to
> one subject was censored.
>
> How can I identify the last observation of each individual subject
> within a longitudinal data set, so that I can create my new variable
> without having to manually search for that last observation?
>
>
> --
>
> Best wishes,
> Michael McCulloch
>
>
>
> Pine Street Foundation
> 124 Pine St., San Anselmo, CA 94960-2674
> Tel: (415) 407-1357
> Fax: (415) 485-1065
> [email protected]
> www.pinestreetfoundation.org
> *
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> * 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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