--- 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
-----------------------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
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