/Python/Rolling std dev of a pandas series

Rolling std dev of a pandas series

>>> s = pd.Series([5, 5, 6, 7, 5, 5, 5])
>>> s.rolling(3).std()
0         NaN
1         NaN
2    0.577350
3    1.000000
4    1.000000
5    1.154701
6    0.000000
dtype: float64

Source: pandas.pydata.org

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