[python] Moving average or running mean

There is a comment by mab buried in one of the answers above which has this method. bottleneck has move_mean which is a simple moving average:

import numpy as np
import bottleneck as bn

a = np.arange(10) + np.random.random(10)

mva = bn.move_mean(a, window=2, min_count=1)

min_count is a handy parameter that will basically take the moving average up to that point in your array. If you don't set min_count, it will equal window, and everything up to window points will be nan.

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