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Re: st: predicted values, different p-weights


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: predicted values, different p-weights
Date   Tue, 7 Jul 2009 18:15:28 +0000 (GMT)


--- On Tue, 7/7/09, Kyle Caswell wrote:
> Hello. I would like to retrieve
> predicted values after running a glm model that uses
> probability weights. However, I would like to use different
> weights than those used in estimating the origional model
> for the predicted values. I don’t see such an option using
> the “predict” command. Can anyone tell me how this can
> be done? 

The weight influences the estimated coefficients but not the 
predicted value. You can think of the weight as determining
how much value is attached to an observation's deviation of 
the predicted value from the observed value. So once you 
have estimated a model with a given set of weights, any
alternative set of weights will not influence the predicted
values. 

Hope this helps,
Maarten

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

http://home.fsw.vu.nl/m.buis/
-----------------------------------------




      

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