Re: st: Standard normal Depvar

[Nick Cox <n.j.cox@stata.com>]

This produces zero or positive values.

Less pedantically, if the variable is already standard normal, why does 
it need transforming?

Nick

Maarten buis wrote:

> --- 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))

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