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


From   Eric Booth <[email protected]>
To   "<[email protected]>" <[email protected]>
Subject   Re: st: Category sizes in IF statements - how?
Date   Mon, 28 Feb 2011 18:49:56 +0000

<>

********!
//setup//
sysuse census, clear
expand 50 in 20/40 
count if state== "Oregon"
count if state== "Alabama"

//gen catsize//
bys state: g catsize = _N
ta state catsize

//create dummies//
ta state if catsize >40, g(s_)

desc   s_*
**********!

- Eric
__
Eric A. Booth
Public Policy Research Institute
Texas A&M University
[email protected]
Office: +979.845.6754
Fax: +979.845.0249
http://ppri.tamu.edu

On Feb 28, 2011, at 12:41 PM, Jan Fredrik Hovden 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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