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Re: st: collinearity adjustment


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: collinearity adjustment
Date   Mon, 15 Mar 2010 01:56:58 -0700 (PDT)

--- On Mon, 15/3/10, Fabio Zona wrote:
> I tried to center my variables, but, after centering,
> -collin- commands tell VIF values are still very high.

You might want to look at -help orthog-, as these kind of
centering tricks are often attempts at approximating what 
-orthog- does.

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

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