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Re: st: -xtlogit- produces different results under different versions
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From |
[email protected] (Roberto G. Gutierrez, StataCorp) |
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To |
[email protected] |
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Subject |
Re: st: -xtlogit- produces different results under different versions |
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Date |
Fri, 26 Sep 2008 10:16:10 -0500 |
Zhiqiang Wang <[email protected]> writes:
> While trying to update on an old ado file to include -xtlogit- command for
> my Australian colleague, we noticed that using the same data, -xtlogit-
> produces different results.
and then goes on to demonstrate the differences between Stata 8, 9, and 10.
Vince Wiggins <[email protected]> posted on this issue a few weeks ago:
http://www.stata.com/statalist/archive/2008-09/msg00244.html
His post is in reference to -xttobit-, but what is stated there holds true for
-xtlogit- as well. To summarize, over the last two versions of Stata we have
twice improved the way we approximate the log-likelihood through numerical
integration.
--Bobby
[email protected]
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