[18847] in s-news-athena
Re: RE: [S] nls() fails in a loop
daemon@ATHENA.MIT.EDU (Bruce McCullough)
Wed Aug 4 08:42:06 1999
Message-Id: <s7a7fae0.015@fcc.gov>
Date: Wed, 04 Aug 1999 08:32:58 -0400
From: "Bruce McCullough" <BMCCULLO@fcc.gov>
To: internet:internet:s-news@wubios.wustl.edu
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Bill Venables suggested:
>1. Don't begin every cv fit with the original rough initial values. >Always use the best available initial values you have, for >example, from the primary fit using all the data.
As another example, I have bootstrapped a few
nonlinear models, and I have found that using
the solution from the previous iteration can
work well.
Bruce
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