pearson correlation coefficient python code example

Example 1: python pearson correlation

import scipy
# x and y are numpy array with shape (N,)
coeff, _ = scipy.stats.pearsonr(x, y)

Example 2: Pearson correlation

The usual definition of correlation. Technically,
Corr[X,Y] = Cov[X,Y]/(Std[X] * Std[Y]).