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pandas.Series.std¶

Series.std(axis=None, dtype=None, out=None, ddof=1, skipna=True, level=None)¶

Return standard deviation of values NA/null values are excluded

skipna : boolean, default True: Exclude NA/null values
level : int, default None: If the axis is a MultiIndex (hierarchical), count along a particular level, collapsing into a smaller Series

stdev : float (or Series if level specified)

Normalized by N-1 (unbiased estimator).