How to normalize a plot ?

2016 3 10

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Hi, can anybody help me to understand how to normalize a spectrum ? I have a spectra and I want to obtain its area equal to 1. Thanks in advance.

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Jan 2016-3-10

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If you want the area to be 1.0, create the sum over the spectrum and divide the values by the result.

spectrum   = rand(1, 100);  % Example data
normalized = spectrum / sum(spectrum);

Snapshot83 2016-3-10

Thank you for your reply. What does it mean sum ? How I should proceed if I have value in x and y coloumns ?

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