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Re: CurveFit question [message #45775 is a reply to message #25763]

Tue, 04 October 2005 19:29

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

"ChiChiRuiz@gmail.com" <ChiChiRuiz@gmail.com> writes:
> I'm using Curvefit function to fit a set of data points to a Gaussian
> curve. One of the arguments of CURVEFIT is "weights". I'm not really
> clear as to what it is, and what the value should be in my case. Any
> advise?

It depends on what kind of statistics you have. Here are common
values of weights:

; 1D/ERR^2 - Normal weighting (ERR is the measurement error)
; 1D/Y - Poisson weighting (counting statistics)
; 1D - Unweighted

Craig

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

		curvefit question By: Mike Barker on Wed, 11 July 2001 15:25
		Re: CURVEFIT question By: elias on Wed, 31 August 2005 04:19
		Re: CurveFit question By: Craig Markwardt on Tue, 04 October 2005 19:29

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