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st: stsplit according to percentiles of a variable


From   Serguei Kaniovski <Serguei.Kaniovski@wifo.ac.at>
To   statalist@hsphsun2.harvard.edu
Subject   st: stsplit according to percentiles of a variable
Date   Wed, 20 Feb 2008 11:01:54 +0100

Hello All,

After "stset" I have the time-elapsed variable "_t". I would like to
"stsplit" data according to the percentiles of "_t", but dont know how to
put the percentile value in the numlist. Something which does not work (but
hopefully shows what I am aiming at) is

egen pmin=min(_t)
egen p25=pctile(_t), p(25)
egen pmax=max(_t)

stsplit age, at(`pmin'(1)`p25' `p25'(5)`pmax')

How can I make it work?

Thanks in advance,
Serguei Kaniovski

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