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Re: mpfit: meaning of status flag [message #53645]

Fri, 27 April 2007 11:32

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Maarten <maarten.sneep@knmi.nl> writes:
> Hi,
>
> I'm using mpfit (actually mpfitfun) to do some fitting. Even though
> the fit seems to converge properly, for all fits I get the message:
> improper input perameters. Is this a problem? I must admit that I
> thoughly abuse the X variable, to pass some extra information around,
> but as far as I know, mpfit does not touch this variable. On the other
> hand, looking at the list of possible status values, I wouldn't know
> exactly what's good, and what isn't.

As you suspect, neither MPFIT nor MPFITFUN touches the "X" values. As
I note on my FAQ, check the ERRMSG keyword for a text description of
the problem. Usually you have specified a model parameter outside of
its limits or something like that.

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: mpfit: meaning of status flag By: Craig Markwardt on Fri, 27 April 2007 11:32
		Re: mpfit: meaning of status flag By: Vince Hradil on Thu, 26 April 2007 07:55
		Re: mpfit: meaning of status flag By: Vince Hradil on Thu, 26 April 2007 07:50
		Re: mpfit: meaning of status flag By: Maarten[1] on Tue, 01 May 2007 03:03

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