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st: problems convering maximum likelihood in Stata 11


From   Jon Schwabish <jschwabi@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: problems convering maximum likelihood in Stata 11
Date   Thu, 11 Mar 2010 11:24:48 -0800 (PST)

In running a simple logit model (albeit on a very big data set) in Stata 11, my likelihood function won't converge; in running the same model on the same data set in Stata 10, the function converges in about 5 iterations. 

Is there something inherently different in Stata 11 about the likelihood process? I have tried adding all sorts of options in Stata 11 (nrtolerance, difficult, etc) all to little effect.

Thanks,
Jon
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