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Re: RE: st: AW: Create a flag variable for 10 most frequent values


From   gjhxmu@sina.com
To   statalist<statalist@hsphsun2.harvard.edu>
Subject   Re: RE: st: AW: Create a flag variable for 10 most frequent values
Date   Tue, 17 Nov 2009 22:27:45 +0800

Suppose we need to flag the 5 most frequent values, how about the following typings?

sysuse auto, clear
keep mpg
bys mpg: egen mycount=count(mpg)
bys mycount: g num=_n
gsort num -mycount
g tag=_n<=5
bys mycount: egen rank5=max(tag)


Hope it helps!

Rose



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