How do I display the Raman Spectra?

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hithere 2014-10-9

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https://ww2.mathworks.cn/matlabcentral/answers/158029-how-do-i-display-the-raman-spectra

回答： Image Analyst 2022-3-8

New to MATlab. I have 2 .mat files from my teaching assistant. They are supposedly raman spectra and wavenumber. How do i display them to visualize the spectrum?

I suppose wavenumber is the x-axis and the ref_raw is the y-axis for intensity?

How do i plot such scenario?

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Guillermo Ramirez 2017-4-18

hello, sry im not sure about your question,are you trying to use plot(x,y)?, on x axis the wave number, and the y axis the intensity.

Image Analyst 2017-4-18

在 MATLAB Online 中打开

The rows are probably the depths, and the z value is the signal. So you could do

val = squeeze(val); % Get rid of middle dimension
for depth = 1 : size(val, 2)
    thisSpectrum = val(depth, :); % Get spectrum for this depth
    plot(wavenumber, thisSpectrum, '-', 'LineWidth', 2);
    hold on;
end
grid on;
xlabel('Wavenumber', 'FontSize', 20);
ylabel('Intensity', 'FontSize', 20);
title('Raman Spectra at Different Depths', 'FontSize', 20);