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Re: st: pseudo R-squared for median regression
From
Mari Mari <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: pseudo R-squared for median regression
Date
Sat, 19 May 2012 09:56:06 +0100 (BST)
Thank you both very much!
Mari
----- Original Message -----
From: Cameron McIntosh <[email protected]>
To: STATA LIST <[email protected]>
Cc:
Sent: Saturday, 19 May 2012, 1:25
Subject: RE: st: pseudo R-squared for median regression
Mari,
You should also look at:
Koenker, R., & Machado, J. (1999). Goodness of fit and related inference processes for quantile regression. Journal of the American Statistical Association, 94(448),1296–1310.http://isc.temple.edu/economics/Econ616/Quantile/JASA1999.pdf
Just never forget that the index is quantile-specific rather than global over the whole conditional distribution, thus not analogous to the conventional R-square.
Cam
> Subject: Re: st: pseudo R-squared for median regression
> From: [email protected]
> Date: Fri, 18 May 2012 15:30:04 -0400
> To: [email protected]
>
>
> The answer is contained in the manual entry for -qreg- both in the discussion of Example 1 and in the Methods and Formulas.
>
> Steve
> [email protected]
>
> On May 18, 2012, at 1:51 PM, Mari Mari wrote:
>
> Hi,
> How could I interpret the pseudo R-squared from a median regression?
> I understand it does not have the same interpretation as the non-pseudo R-squared (i.e. the proportion of the total variability explained by the model).
> Thanks
>
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