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st: RE: Questiion: for with by


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Questiion: for with by
Date   Wed, 19 Apr 2006 17:56:08 +0100

There is no intrinsic incompatibility between -for- 
and -by:-. 

However, I assume, by Statalist convention, that
you are using Stata 9.2. If you are not, then you 
should have said so. 

In your situation, there is absolutely no reason 
to use -for- when -foreach- and -forvalues- are 
available. 

As several (very (experienced)) posters in recent threads
have emphasised, and also myself, 

trying to use -for- really is a very bad idea. 

Even the experts will find it difficult to help 
you if you go wrong. 

Nick 
n.j.cox@durham.ac.uk 

Andrea Mascotto
> Sent: 19 April 2006 17:38
> To: statalist@hsphsun2.harvard.edu
> Subject: st: Questiion: for with by
> 
> 
> Hi all,
> 
> As far as I know, with panel data, the command "for" does not 
> allow the use 
> of "by".
> How can I work with many variables using something like "for" 
> and, at the 
> same time, get things done by each cross section? Is there a way?
> 
> Thanks,
> Andrea 
> 
> 
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