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Re: fit function [message #27318 is a reply to message #27312]

Tue, 16 October 2001 12:36

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

"Martin Downing" <martin.downing@ntlworld.com> writes:
> Looks like you want to implement one of Craig's fitting routines with a
> "m*x^n" function
>
> Martin
>
> "Reimar Bauer" <r.bauer@fz-juelich.de> wrote in message
> news:3BCC75F8.952BFBD1@fz-juelich.de...
>> Dear all,
>>
>>
>> I need a fit function which returns y=mx^n.
>>
>> Is someone able to share some code.

I feel that Reimer must be asking for more than the obvious. Either
that, or someone hijacked his email account. :-)

This function should do the trick:

function powlaw, x, p
return, p(0)*x^p(1)
end

Craig

--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: fit function By: R.Bauer on Wed, 17 October 2001 01:31
		Re: fit function By: Craig Markwardt on Tue, 16 October 2001 14:20
		Re: fit function By: Craig Markwardt on Tue, 16 October 2001 12:36
		Re: fit function By: Pavel A. Romashkin on Tue, 16 October 2001 11:57
		Re: fit function By: Martin Downing on Tue, 16 October 2001 11:19
		Re: fit function By: David Fanning on Tue, 16 October 2001 11:07

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