Statistical tests

This section collects various statistical tests.

Module Reference

Normality test

shapiro_francia(array)

The statistical test of Shapiro-Francia considers the squared correlation between the ordered sample values and the (approximated) expected ordered quantiles from the standard normal distribution.

Regression Models with Count Data

overdisp(model[, data])	Overdispersion test for Statsmodels count models (Cameron & Trivedi, 1990).
vuong_test(m1, m2)	Module to perform Vuong test for identification of zero inflation in count data regression models.