how to find FWHM in histogram

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sani
sani 2020-5-28
回答： Image Analyst 2020-5-29
how can I evaluate the FWHM in a histogram with 2 peaks or more? I couldn'f find a built-in function...
thanks!
  2 个评论
Rik
Rik 2020-5-28
Since there isn't a builtin function, you will have to write one yourself.
I would suggest starting with finding the peak.
sani
sani 2020-5-28
Thenks, yes it will make it much easier

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Image Analyst
Image Analyst 2020-5-29
Try this (untested):
counts = histcounts(data);
maxCounts = max(counts);
leftBin = find(counts > maxCounts/2, 1, 'first')
rightBin = find(counts > maxCounts/2, 1, 'last')
fwhm = rightBin - leftBin; % Add 1 if you want, depending on how you define width.

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