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re: st: a question about percentiles


From   Christopher Baum <kit.baum@bc.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   re: st: a question about percentiles
Date   Tue, 12 Jul 2011 22:41:29 -0400

<>
      I have a quick question regarding the quintiles. I used the
command xtile listed in the manual under pctile to divide income into
quartiles. What I want to know is the  the highest value in each
quartile. I tried to sort and list, but the data is too big to list
all the values. Anyone has a more convenient way to do it?

sysuse auto,clear
xtile pct = mpg, nq(5)
bys pct (mpg): l mpg if _n==_N
// or
sort pct mpg
by pct: g hival = mpg if _n==_N
l pct hival if !mi(hival)

Kit

Kit Baum   |   Boston College Economics & DIW Berlin   |   http://ideas.repec.org/e/pba1.html
                              An Introduction to Stata Programming  |   http://www.stata-press.com/books/isp.html
   An Introduction to Modern Econometrics Using Stata  |   http://www.stata-press.com/books/imeus.html




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