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More general method to find FWHM

I want to find out the full width at half maximum in my data.
Someone suggest to try this with the Threshold 1D arry.vi at the half maximum.
Anyway, the shapes are very different case by case..
 
The Vi have a weak point which can't understand its behavior (in attachment).
Would you please why I can't find the 2nd point in negative slope on the graph?
 
I believe it's not easy work for the multi-valued function.
Is there more general technique to find out the FWHM?


메시지가 07-30-2008 11:03 AM에 labmaster에 의해 편집되었음
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Is this what you are trying to achieve?

Craig

LabVIEW 2012
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