How do I display the Raman Spectra?
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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?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/145654/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/145655/image.jpeg)
I suppose wavenumber is the x-axis and the ref_raw is the y-axis for intensity?
How do i plot such scenario?
2 个评论
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
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);
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