penaltyblog.models.dixon_coles_weights

penaltyblog.models.dixon_coles_weights(dates, xi=0.0018, base_date=None) → ndarray[Any, dtype[_ScalarType_co]]

Calculates a decay curve based on the algorithm given by Dixon and Coles in their paper

Parameters:

• dates (list) – A list or pd.Series of dates to calculate weights for

• x1 (float) – Controls the steepness of the decay curve

• base_date (date) – The base date to start the decay from. If set to None then it uses the maximum date