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Module « scipy.stats.mstats »

Fonction skewtest - module scipy.stats.mstats

Signature de la fonction skewtest

def skewtest(a, axis=0, alternative='two-sided') 

Description

help(scipy.stats.mstats.skewtest)

Tests whether the skew is different from the normal distribution.

Parameters
----------
a : array_like
    The data to be tested
axis : int or None, optional
   Axis along which statistics are calculated. Default is 0.
   If None, compute over the whole array `a`.
alternative : {'two-sided', 'less', 'greater'}, optional
    Defines the alternative hypothesis. Default is 'two-sided'.
    The following options are available:

    * 'two-sided': the skewness of the distribution underlying the sample
      is different from that of the normal distribution (i.e. 0)
    * 'less': the skewness of the distribution underlying the sample
      is less than that of the normal distribution
    * 'greater': the skewness of the distribution underlying the sample
      is greater than that of the normal distribution

    .. versionadded:: 1.7.0

Returns
-------
statistic : array_like
    The computed z-score for this test.
pvalue : array_like
    A p-value for the hypothesis test

Notes
-----
For more details about `skewtest`, see `scipy.stats.skewtest`.

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