Find peak values in XRD spectra

I am new to MATLAB and trying to figure out how I can find the peak values for a given sample XRD spectra. I have attached the sample spectra data. Here is the code I have right now that displays the data:

data = importdata('test.txt') ;   % load the data from text file
data1=semilogy(data(:,1),data(:,2)) ;   % plot the data

This is what gets displayed:

I am trying to figure out how I can get the peak values in a matrix or some sort so that I can compute further analysis. My overall goal is to compute the standard deviation of these peak values...so if there is a shortcut to that , that would be even better. Thank you!

Answer 1

[Image Analyst]

Try findpeaks() in the Signal Processing Toolbox. You might have to adjust the peak prominence input argument.