Examples
--------
Find the correlation between two arrays.

>>> from scipy.spatial.distance import correlation
>>> correlation([1, 0, 1], [1, 1, 0])
1.5

Using a weighting array, the correlation can be calculated as:

>>> correlation([1, 0, 1], [1, 1, 0], w=[0.9, 0.1, 0.1])
1.1

If centering is not needed, the correlation can be calculated as:

>>> correlation([1, 0, 1], [1, 1, 0], centered=False)
0.5
zKComplex `u` and `v` are deprecated and will raise an error in SciPy 1.17.0.r(