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Re: Error detected while calling MPFIT_FDJAC2 [message #71506 is a reply to message #71503]

Tue, 22 June 2010 00:48

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

On Jun 21, 3:15 pm, Fermiona Fermiona <fermion...@gmail.com> wrote:
> Hello,
>
> I used MPFIT within a loop and I got the following errors:
>
> % MPFIT: Error detected while calling MPFIT_FDJAC2:
> % MPFIT: Out of range subscript encountered: FJAC.
> % MPFIT: Error condition detected. Returning to MAIN level.
>
> The function carried out "Iter 1", calculated "CHI-SQUARE" and
> "DOF" then found the value of the parameters P(0), P(1), etc ..
> After that, it reported the above errors, and increased the dof by 1
> (and consequently skipped finding the value of one of the Params),
> then carried out the rest of iterations.
>
> What could be wrong?

Well the obvious answer is that there was an error while calling
MPFIT_FDJAC2! That is where the user function and its derivatives are
evaluated.

I suspect you are attempting to compute your own explicit derivatives
and not returning an array with the right dimensions and/or sizes.

Regards,
Craig Markwardt

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[Message index]

		Re: Error detected while calling MPFIT_FDJAC2 By: Craig Markwardt on Wed, 23 June 2010 17:16
		Re: Error detected while calling MPFIT_FDJAC2 By: Fermiona Fermiona on Wed, 23 June 2010 01:39
		Re: Error detected while calling MPFIT_FDJAC2 By: Fermiona Fermiona on Tue, 22 June 2010 23:35
		Re: Error detected while calling MPFIT_FDJAC2 By: Craig Markwardt on Tue, 22 June 2010 21:47
		Re: Error detected while calling MPFIT_FDJAC2 By: Fermiona Fermiona on Tue, 22 June 2010 02:40
		Re: Error detected while calling MPFIT_FDJAC2 By: Craig Markwardt on Tue, 22 June 2010 00:48
		Re: Error detected while calling MPFIT_FDJAC2 By: pete.petrus on Thu, 01 May 2014 07:28
		Re: Error detected while calling MPFIT_FDJAC2 By: Craig Markwardt on Thu, 01 May 2014 10:34

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