I need to resample the ECG signal at a lower frequency in order to apply some QRS detection algorithms

I am not sure how to do it. Could someone help. It's part of my project and currently I am not getting good results from QRS Detection algorithms.

Link for ECG File (each row is ecg for 1 person): https://drive.google.com/file/d/1vXb3zY1hlKdXbn6cSvrm7O7OfL1Nx_qe/view?usp=share_link

Answer 1

[Paul]

The following functions may be of interest: downsample , decimate , resample