A Python equivalent of the unbiased xcorr Matlab function

I have searched but not found a python implementation that is reasonably equivalent to the unbiased xcorr Matlab function . This is my best solution so far: import numpy as np def xcorr(x, y=None): """Correlation like Matlab's xcorr (unbiased)""" if y is None: # perform auto-correlation y = x N = max(len(x), len(y)) z = np.correlate(x, y, mode='full') s = 1 / (N - np.arange(N-1)) z[N:] *= s if N %…