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Re: st: predicting consumption
From
Maarten buis <[email protected]>
To
[email protected]
Subject
Re: st: predicting consumption
Date
Wed, 9 Mar 2011 17:29:35 +0000 (GMT)
--- On Wed, 9/3/11, gemini mtei wrote:
> I have tried the glm-gamma option but the estimated
> coefficient am getting a almost similar to the one i get
> using OLS. These give similar prediction as OLS.
This is what you would expect. The problem is that you are
ignoring the random variation around the regression line,
so the predicted values are more compact than the actual
observations, regardless of whether your predictions are
comming from linear regression or glm.
-- Maarten
--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://www.maartenbuis.nl
--------------------------
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