How do I normalize Area under curve of NIR spectra to 1

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NCA
NCA 2021-6-27
编辑： Image Analyst 2021-6-27
How do I normalize Area Under Curve of NIR spectra to 1 using Matlab 2020b please?
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Image Analyst
Image Analyst 2021-6-27
编辑：Image Analyst 2021-6-27
Don't you just do
signal = signal / sum(signal);
That's if you're plotting your signal like little bars in a bar chart. If you're computing area like they're little trapezoids, then use
signal = signal / trapz(signal);

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