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Spline Fitting and FWHM [message #22476]

Tue, 21 November 2000 00:00

Peter den Hartog
Messages: 1
Registered: November 2000

Junior Member

Hi,
I have some data tabulated in two arrays (pixels versus intensities) .
The idea is to fit a cubic spline to the data with the function SPLINE
but I am struggling with the following problem: I would like to be able
to extract a full width at half maximum and at quarter maximum out of
the fit. How can I accomplish this, as the function SPLINE only reads
x-values and returns corresponding, fitted y-values as result, while I
am interested in the reverse.

Thanks!

Omar Noor
student astronomy
Utrecht University Netherlands
o.f.d.noor@phys.uu.nl

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[Message index]

		Spline Fitting and FWHM By: Peter den Hartog on Tue, 21 November 2000 00:00
		Re: Spline Fitting and FWHM By: Craig Markwardt on Tue, 21 November 2000 00:00
		Re: Spline Fitting and FWHM By: Martin Schultz on Tue, 21 November 2000 00:00

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