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Re: 3D Curve Fitting [message #62758 is a reply to message #62757]

Wed, 01 October 2008 01:55

Wox
Messages: 184
Registered: August 2006

Senior Member

On Wed, 1 Oct 2008 00:35:08 -0700 (PDT), jaz <jazpearson@gmail.com>
wrote:

> Yeah i've seen this, but it only seems to do up to 2D. Or am i missing
> a trick here?

If you have 2 independent and 1 dependent variable (e.g. z as a
function of x and y), mpfit can be used. In IDL's CURVEFIT
terminology, x would be [x,y] and y would be z.

If you have 3 independent variables, you can't use mpfit or curvefit
or whatever. There was a recent thread about fitting a plane through
3D points:
http://groups.google.com/group/comp.lang.idl-pvwave/browse_t hread/thread/ca44cee7dccda577/bd8a114918493ff0?lnk=raot

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[Message index]

		Re: 3D Curve Fitting By: Craig Markwardt on Thu, 02 October 2008 09:05
		Re: 3D Curve Fitting By: Craig Markwardt on Thu, 02 October 2008 09:01
		Re: 3D Curve Fitting By: Wox on Thu, 02 October 2008 04:50
		Re: 3D Curve Fitting By: Wox on Thu, 02 October 2008 04:13
		Re: 3D Curve Fitting By: jaz on Thu, 02 October 2008 02:59
		Re: 3D Curve Fitting By: R.G. Stockwell on Wed, 01 October 2008 11:04
		Re: 3D Curve Fitting By: Craig Markwardt on Wed, 01 October 2008 10:07
		Re: 3D Curve Fitting By: Craig Markwardt on Wed, 01 October 2008 09:53
		Re: 3D Curve Fitting By: jameskuyper on Wed, 01 October 2008 06:07
		Re: 3D Curve Fitting By: David Fanning on Wed, 01 October 2008 05:19
		Re: 3D Curve Fitting By: Wox on Wed, 01 October 2008 05:04
		Re: 3D Curve Fitting By: Wox on Wed, 01 October 2008 04:50
		Re: 3D Curve Fitting By: Rob.Dimeo on Wed, 01 October 2008 04:08
		Re: 3D Curve Fitting By: Wox on Wed, 01 October 2008 01:55
		Re: 3D Curve Fitting By: jaz on Wed, 01 October 2008 00:35
		Re: 3D Curve Fitting By: russell.grew on Tue, 30 September 2008 17:15

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