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Re: st: Standard normal Depvar

From   Maarten buis <>
Subject   Re: st: Standard normal Depvar
Date   Thu, 6 Aug 2009 03:34:46 +0000 (GMT)

--- On Wed, 5/8/09, Evans Jadotte wrote:
> I am trying to run a regression where the dependent
> variable has a standard normal distribution (those of you
> familiar with the "wealth index based on the PCA analysis",
> this is my Depvar).  However, I need to have the 
> prediction  to be all positive to use for transforming.
> How can I transform  the Depvar in order  to
> force  xb^ to take on positive values?

Here is one option:

reg y x1 x2
predict yhat
sum yhat, meanonly
gen yhatprime = yhat + abs(r(min))

Hope this helps,

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


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