statsmodels.stats.stattools.medcouple

statsmodels.stats.stattools.medcouple(y, axis=0)

Calculates the medcouple robust measure of skew.

Parameters:

• y (array-like) –
• axis (int or None, optional) – Axis along which the medcouple statistic is computed. If None, the entire array is used.

Returns:

mc – The medcouple statistic with the same shape as y, with the specified axis removed.

Return type:

ndarray

Notes

The current algorithm requires a O(N**2) memory allocations, and so may not work for very large arrays (N>10000).

[*]	M. Huberta and E. Vandervierenb, “An adjusted boxplot for skewed distributions” Computational Statistics & Data Analysis, vol. 52, pp. 5186-5201, August 2008.