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st: RE: How to sample uniformly over a set of specific observations?


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: How to sample uniformly over a set of specific observations?
Date   Mon, 15 Oct 2007 13:27:47 +0100

This is a pretty fuzzy question. How can anyone 
advise precisely and appropriately on how best to 
do "further calculations"? 

Why you do think you _need_ to -drop- variables 
that you also need access to? 

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

tiago.pereira@incor.usp.br
 
> Thank you, Nick.
> 
> Yeah, I thought so before. Thatīs a good solution. however, I need to
> perform further calculations and drop these variables. So, I 
> would like to
> maintain those values in a vector or something like that...to 
> pick up an
> observation from it in the next steps of my calculations. Is 
> it possible?
> 

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