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Re: Piecewise curve fitting in idl [message #61797 is a reply to message #61793]

Thu, 31 July 2008 04:21

Wox
Messages: 184
Registered: August 2006

Senior Member

On Thu, 31 Jul 2008 03:30:22 -0700 (PDT), d.poreh@gmail.com wrote:

> Folks
> How we can do the piecewise curve fitting in idl. Say we have an array
> that this array has got 2 or 3 trends in data and we want to fit a
> liner curve for each trends. In MATLAB curve fitting tool, we can
> easily exclude or include a part of data and then fit a curve. How we
> can do this in IDL
> Cheers
> Dave
>

Euhm, just do the fitting on the different parts? Or do you mean
fitting with a piecewise polynomial (i.e. spline: see e.g. IMSL_BSLSQ
or IMSL_CONLSQ)

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[Message index]

		Re: Piecewise curve fitting in idl By: Wox on Fri, 01 August 2008 01:27
		Re: Piecewise curve fitting in idl By: jameskuyper on Thu, 31 July 2008 07:58
		Re: Piecewise curve fitting in idl By: pgrigis on Thu, 31 July 2008 07:41
		Re: Piecewise curve fitting in idl By: Paul Van Delst[1] on Thu, 31 July 2008 07:31
		Re: Piecewise curve fitting in idl By: David Fanning on Thu, 31 July 2008 07:03
		Re: Piecewise curve fitting in idl By: d.poreh on Thu, 31 July 2008 07:00
		Re: Piecewise curve fitting in idl By: jameskuyper on Thu, 31 July 2008 05:39
		Re: Piecewise curve fitting in idl By: d.poreh on Thu, 31 July 2008 04:54
		Re: Piecewise curve fitting in idl By: Wox on Thu, 31 July 2008 04:21
		Re: Piecewise curve fitting in idl By: Craig Markwardt on Sun, 03 August 2008 21:58

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