statsmodels.stats.stattools.expected_robust_kurtosis¶

statsmodels.stats.stattools.expected_robust_kurtosis(ab=(5.0, 50.0), dg=(2.5, 25.0))[source]¶

Calculates the expected value of the robust kurtosis measures in Kim and White assuming the data are normally distributed.

Parameters:¶

abiterable, optional

Contains 100*(alpha, beta) in the kr3 measure where alpha is the tail quantile cut-off for measuring the extreme tail and beta is the central quantile cutoff for the standardization of the measure

dbiterable, optional

Contains 100*(delta, gamma) in the kr4 measure where delta is the tail quantile for measuring extreme values and gamma is the central quantile used in the the standardization of the measure

Returns:¶

ekrndarray, 4-element

Contains the expected values of the 4 robust kurtosis measures

Notes

See robust_kurtosis for definitions of the robust kurtosis measures