How to find first two largest peaks with sample location
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Please let me know, how to find its two highest peaks along with its samples information too.
![P wave.JPG](https://www.mathworks.com/matlabcentral/answers/uploaded_files/270188/P%20wave.jpeg)
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Bhaskar R
2020-2-6
d = rand(100,1); % assumed data
[vals,loc] = maxk(d,2); % first two peaks(mnaximum values) sample values and locations
plot(d); hold on; % plot original samples
plot(loc,vals,'rv', 'MarkerFaceColor', 'r'); % plot peak values
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Bhaskar R
2020-2-6
Yeah, I got you. Use findpeaks to get all peak values of the samples
d = rand(100,1); % assumed data
[vals,locs] = findpeaks(d);
[val,loc] = maxk(vals,2); % first two peaks(mnaximum values) sample values and locations
plot(d); hold on; % plot original samples
plot(locs(loc),val,'rv', 'MarkerFaceColor', 'r'); % plot peak values
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