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Re: Robust curve fitting [message #12452 is a reply to message #12449]

Tue, 04 August 1998 00:00

Mark Elliott
Messages: 10
Registered: February 1998

Junior Member

Thanks so much Craig!

Do you or anyone reading this know if there are similar IDL (or
MINPACK) routines which perform Levenberg-Marquardt fitting to COMPLEX
functions?

Thanks again.

Craig Markwardt wrote:
>
> There has been some recent discussion on this newgroup about curve
> fitting. Specifically, people wanted a faster system with more
> features. I also wanted a curve fitting routine that didn't cause IDL
> to crash.
>
> I recently had an opportunity to translate the MINPACK-1 curve-fitting
> package into IDL. MINPACK is a minimization package available from
> netlib, and has an excellent reputation. I have found that it is much
> more robust, able to cope with singular matrices, etc. Since people
> have been requesting, I polished it up a little bit, and am making it
> available via my IDL web page:
>
> http://astrog.physics.wisc.edu/~craigm/idl/idl.html
>

--

Mark Elliott |
Dept of Radiology | Voice: (215) 898-9357
University of Pennsylvania | FAX : (215) 573-2113
Philadelphia, PA 19104 USA | Email: mark@mail.mmrrcc.upenn.edu

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[Message index]

		Re: Robust curve fitting By: davidf on Tue, 04 August 1998 00:00
		Re: Robust curve fitting By: Craig Markwardt on Tue, 04 August 1998 00:00
		Re: Robust curve fitting By: Mark Elliott on Tue, 04 August 1998 00:00
		Re: Robust curve fitting By: rosentha on Tue, 04 August 1998 00:00
		Re: Robust curve fitting By: Craig Markwardt on Mon, 03 August 1998 00:00

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