Re: st: pseudo r square

[Paul Millar <paul.millar@shaw.ca>]

Eric,

You could just run the nbreg with only the depvar, then with the full
model.  After each do the following command:
di "log likelihood=" e(ll)

The pseudo R2 is just the proportional improvement in the -2ll

You can do this in one command after the nbreg:
di "pseudo R2="
(e(ll_0)-e(ll))/e(ll_0)


- Paul

At 05:20 AM 08/03/2005, you wrote:
> Hi all,
>
> Does anybody know how to generate a Pseudo R-Square using the negative
> binomial model with the cluster option in Stata?
>
> Any help on this would be much appreciated.
>
> Thanks,
>
> Eric


*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/