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st: Re: list [if] [in]


From   Kit Baum <baum@bc.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: Re: list [if] [in]
Date   Sat, 12 Apr 2008 08:07:21 -0400

As Nick Cox ably replied, they actually are of no use nor harm. Such a construct does appear in the prefix

bysort x (y): do something

in which case they do play an important role in defining by-groups. But on the ordinary sort command, no.

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 Apr 12, 2008, at 02:33 , David wrote:


Can you please tell me what the purpose of the parens is in the statement below?

sort nowant (enn)
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