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Re: [Bug-gsl] non-linear LS fit example in documentation: bug?

From: Brian Gough
Subject: Re: [Bug-gsl] non-linear LS fit example in documentation: bug?
Date: Thu, 22 Jan 2009 20:17:55 +0000
User-agent: Wanderlust/2.14.0 (Africa) Emacs/22.2 Mule/5.0 (SAKAKI)

At Wed, 21 Jan 2009 16:12:51 -0500,
Mark M. Ito wrote:
> I've enclosed a copy of the program that is returning GSL_CONTINUE from
> the solver. It is basically a fit to a parabola. It is a stand-alone
> program, just needs the gsl linked in.

Thanks for the example.  In this case GSL_CONTINUE is an error code
which indicates that the iterate function could not make any
reasonable progress, although it didn't encounter any fatal errors
(therefore calling the function again is possible).  With the example
program this occurs when it's essentially at the minimum.  In
hindsight, GSL_ENOPROG would have been a better choice--I'll log that
as a bug and put a note in the manual.

Brian Gough
(GSL Maintainer)

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