Table2x2.test_ordinal_association(row_scores=None, col_scores=None)
Assess independence between two ordinal variables.
This is the ‘linear by linear’ association test, which uses weights or scores to target the test to have more power against ordered alternatives.
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The scores define the trend to which the test is most sensitive.
Using the default row and column scores gives the Cochran-Armitage trend test.
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© 2006 Jonathan E. Taylor
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http://www.statsmodels.org/stable/generated/statsmodels.stats.contingency_tables.Table2x2.test_ordinal_association.html