Peak detection matlab

1. How to detect peak in matlab?
2. How to detect R peaks in Matlab?
3. How do you use peaks in Matlab?
4. What does Findpeaks do in Matlab?

How to detect peak in matlab?

Use findpeaks with default settings to find the peaks of the signal and their locations. [pks,locs] = findpeaks(PeakSig,x); Plot the peaks using findpeaks and label them. Sort the peaks from tallest to shortest.

How to detect R peaks in Matlab?

If you have Signal Processing Toolbox™, you can use findpeaks to locate the peaks. Plot the R-peak waveform obtained with the wavelet transform annotated with the automatically-detected peak locations. Add the expert annotations to the R-peak waveform.

How do you use peaks in Matlab?

Z = peaks( n ) returns the peaks function evaluated over an n -by- n grid. If you specify n as a vector of length k, MATLAB^® evaluates the function over a k-by-k grid. Z = peaks( Xm , Ym ) returns the peaks function evaluated at the points specified by Xm and Ym .

What does Findpeaks do in Matlab?

Use findpeaks to find values and locations of local maxima in a set of data. The file spots_num. mat contains the average number of sunspots observed every year from 1749 to 2012.