In this work we define a test to compare several square contingency tables under the quasi-symmetry model. Working within the class of log-linear models, we present a suitable model and an exact test to verify if two or more tables fit a common quasi-symmetry model. The exact test is then defined through classical tools of Algebraic Statistics, namely the computation of a Markov basis and the application of a MCMC algorithm.
Comparison of contingency tables under quasi-symmetry
RAPALLO, Fabio
2017-01-01
Abstract
In this work we define a test to compare several square contingency tables under the quasi-symmetry model. Working within the class of log-linear models, we present a suitable model and an exact test to verify if two or more tables fit a common quasi-symmetry model. The exact test is then defined through classical tools of Algebraic Statistics, namely the computation of a Markov basis and the application of a MCMC algorithm.
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