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Re: st: help with pctile


From   Jeph Herrin <junk@spandrel.net>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: help with pctile
Date   Thu, 19 Feb 2009 10:08:05 -0500


I think what you want is -xtile-:

 . xtile percentile = cmpce[pweight=weight], nq(100)

will create a variable -percentile- which categorizes
every value of cmpce according which percentile (1-100)
it falls in.

hth,
Jeph



Janneke Pieters wrote:
Dear users,

I want to generate 100 percentiles for a variable called cmpce. These
will be used later to calculate the mean of cmpce for each percentile.
In Stata10 I type:

pctile percentile = cmpce [pweight = weight], nquantiles(100) genp(pctile)

The new variables percentile and pctile only have a value for the first
100 observations in my data, and a missing value for the other 102257
observations. Is something wrong with my command?

Thanks in advance,
Janneke Pieters

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