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Re: st: Changes to Maximize and Newton-Raphson in Stata 11?


From   jpitblado@stata.com (Jeff Pitblado, StataCorp LP)
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Changes to Maximize and Newton-Raphson in Stata 11?
Date   Thu, 17 Dec 2009 10:49:10 -0600

Taggert Brooks <brooks.tagg@uwlax.edu> wrote in about having some trouble
with -slogit- under version control.  In Stata 10 his model would not
converge whereas it did converge in Stata 11.

He sent me a do-file and dataset that represented the problem he was
experiencing.  It turns out that, for Taggert's dataset, -slogit- is computing
better starting values in Stata 11 than in Stata 10.

-slogit- uses -mlogit- to compute starting values, so the better starting
values are due to improvements made to -mlogit- for Stata 11.

--Jeff
jpitblado@stata.com
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