Re: st: RE: model fit comparison for xtgee

[Terry Lum <tlum@umn.edu>]

Thanks a lot.


Terry

Nick Cox wrote:
> This is an FAQ: 
>
> How can I get an R-squared value when a Stata command does not supply one? 
>
> http://www.stata.com/support/faqs/stat/rsquared.html
>
> Nick 
> n.j.cox@durham.ac.uk 
>
> tlum@umn.edu
>
> I am comparing two xtgee models to see how much explanatory power has 
> increased
> by adding a block of variables. I did a hausman test and the null 
> hypothesis
> was rejected. I do want to know how much more variance was explained by the 
> new variables. Can the xtgee generate something like r-square type model 
> fit index. Or is there anyway I can come up with some formal indicators for 
> improvement in model fit under the new model.
>
>
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>   


--
Terry Lum, Ph.D.
Associate Professor
School of Social Work
University of Minnesota
Phone: 612.624.4722
Fax: 621.624.3744

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/