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Re: Incorrect fit of elliptic to data [message #35999 is a reply to message #35995]

Mon, 04 August 2003 12:38

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Craig Markwardt writes:

> (a) you just dumped a big uuencoded file into the newgroup. Why?
>
> (b) you uuencoded the text edges.pro file too. Why?
>
> (c) It was difficult to get your script to work. There was no
> documentation. Depending on where I clicked, I got different results,
> I suppose I am supposed to click the center? The logic of the program
> is complex enough that it is difficult to decide what *should* be
> happening.
>
> (c) you assumed that Fanning's fit_ellipse function is for fitting
> elliptical shells, when clearly the examples show solid elliptical
> disks. That script computes the size of the ellipse based on the
> moment of inertial of the "blob." Is that what you want?
>
> (d) Have you considered other programs, which actually fit an
> elliptical contour to XY scatter data? (such as MPFITELLIPSE)

All I know is that if I had to do this technical support
gig for a living, I would charge a hell of a lot more for
it than I do now. :-(

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Re: Incorrect fit of elliptic to data By: active-news on Mon, 04 August 2003 14:06
		Re: Incorrect fit of elliptic to data By: David Fanning on Mon, 04 August 2003 12:38
		Re: Incorrect fit of elliptic to data By: Craig Markwardt on Mon, 04 August 2003 12:29

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