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st: Re: computation of R-squared with a non-linear model


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: computation of R-squared with a non-linear model
Date   Tue, 19 May 2009 23:01:13 +0200

<>

Which command did you use for your estimation? If it was non-linear, -nl-? Show us what you typed and what the reply was...


HTH
Martin
_______________________
----- Original Message ----- From: "marcel spijkerman" <marcel_spijkerman@hotmail.com>
To: "stata stata" <statalist@hsphsun2.harvard.edu>
Sent: Tuesday, May 19, 2009 8:54 PM
Subject: st: computation of R-squared with a non-linear model


Dear statalisters,

I estimate a weighted non-linear model of the following form:

y^0.5 = (a1 + a2*X)^0.5 weighted by some other variable z.

Stata reports an adjusted R-squared of 1.000. I suspect this is not correct. How can compute the correct adjusted R-squared using untransformed variables?

Best regards,

Marcel Spijkerman



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