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pandas.stats.moments.rolling_var¶

pandas.stats.moments.rolling_var(arg, window, min_periods=None, freq=None, center=False, time_rule=None, **kwargs)¶

Unbiased moving variance

arg : Series, DataFrame window : Number of observations used for calculating statistic min_periods : int

Minimum number of observations in window required to have a value

freq : None or string alias / date offset object, default=None: Frequency to conform to before computing statistic time_rule is a legacy alias for freq

y : type of input argument