How do you calculate r-r interval of an ekg using matlab?

To calculate the R-R interval from an EKG signal using MATLAB, you first need to detect the R-peaks in the ECG signal. This can be done using functions like findpeaks to identify the peaks in the filtered ECG signal. Once you have the indices of the R-peaks, you can compute the R-R intervals by taking the difference between consecutive R-peak indices and then converting these differences into time by multiplying with the sampling period. Finally, you can visualize the R-R intervals or analyze them as needed.