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Re: st: Category sizes in IF statements - how?


From   Alan Neustadtl <alan.neustadtl@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Category sizes in IF statements - how?
Date   Mon, 28 Feb 2011 13:53:29 -0500

Here is one possible solution:

encode author, gen(author1)
bysort author1: egen authorcnt=count(author1)

gen dummieslab=.
replace dummieslab=0 if author<=20
replace dummieslab=1 if author>20

Best,
Alan


On Mon, Feb 28, 2011 at 1:41 PM, Jan Fredrik Hovden <jfh@hivolda.no> wrote:
> Is there a simple way to use the size of a category as a condition of an IF statement?
>
> Take for example the variable AUTHOR, which includes about 1000 different authors. I would like to make a dummy for some of these authors (using either TAB,GEN() or DUMMIESLAB - but not for everyone, only for categories including at least 40 persons.
>
> IN OTHER  WORDS: What I would like is to do something like this (written in English):
>
> . dummieslab AUTHOR if categorysize>20
>
> I would greatly appreciate any idea f.
>
> Jan Fredrik Hovden
> Associate professor, Department of Information and Media Science
> University of Bergen, Norway
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