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st: Re: saving memory local vs usual variable


From   Christopher Baum <baum@bc.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: Re: saving memory local vs usual variable
Date   Tue, 7 Oct 2008 14:47:11 -0400

< >
Wrong again.

sysuse auto
egen hip = max(price), by(rep78)

returns six distinct values of hip.

It would make no sense for this to work when egen returns a single number but break when egen returns several distinct values, as it often does.

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

On Oct 4, 2008, at 2:33 AM, Ashim wrote:

egen j=max(x) DOES NOT take more than one variable.

It is gen which can do the max of 2 or more variables.

So since egen returns a variable with ONE constant value, it would
seem that it should be allowed to be stored in a scalar / local macro.

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