statsmodels.stats.stattools.jarque_bera¶
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statsmodels.stats.stattools.
jarque_bera
(resids, axis=0)[source]¶ Calculate residual skewness, kurtosis, and do the JB test for normality
Parameters: resids : array-like
axis : int, optional
Default is 0
Returns: JB, JBpv, skew, kurtosis
JB = n/6*(S^2 + (K-3)^2/4)
JBpv is the Chi^2 two-tail probability value
skew is the measure of skewness
kurtosis is the measure of kurtosis