statsmodels.stats.robust_compare.scale_transform

statsmodels.stats.robust_compare.scale_transform(data, center='median', transform='abs', trim_frac=0.2, axis=0)

Transform data for variance comparison for Levene type tests

Parameters

dataarray_like

observations for the data

centerstr in [‘median’, ‘mean’, ‘trimmed’]

the statistic that is used as center for the data transformation

transform‘abs’, ‘square’, ‘identity’ or a callable

the transform for the centered data

trim_fracfloat in [0, 0.5)

Fraction of observations that are trimmed on each side of the sorted observations. This is only used if center is trimmed.

axisint

axis along which the data are transformed when centering.

Returns

resndarray

transformed data in the same shape as the original data.