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pandas.stats.moments.expanding_corr¶

pandas.stats.moments.expanding_corr(arg1, arg2, min_periods=1, freq=None, center=False, time_rule=None)¶

Expanding sample correlation

arg1 : Series, DataFrame, or ndarray arg2 : Series, DataFrame, or ndarray 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

y : type depends on inputs: DataFrame / DataFrame -> DataFrame (matches on columns) DataFrame / Series -> Computes result for each column Series / Series -> Series