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Re: st: where next after nl?


From   Maarten buis <[email protected]>
To   [email protected]
Subject   Re: st: where next after nl?
Date   Mon, 17 Jan 2011 08:06:37 +0000 (GMT)

--- On Mon, 17/1/11, Keith Dear wrote:
> I've been trying to fit nonlinear models using -nl-, and
> finding that it often fails to find a good solution. 

My experience with -nl- is that often it needs user specified
starting values in order to achieve reasonable convergence.
But when I specified these starting values, it tends to work
quite well. An example of how to specify starting values is
given in this post (and ofcourse in the documentation of -nl-):
<http://www.stata.com/statalist/archive/2008-01/msg01006.html>

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

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