CONDITIONAL INDEPENDENCE TEST FOR CATEGORICAL DATA USING POISSON LOG-LINEAR MODEL

We demonstrate how to test for conditional independence of two variables with categorical data using Poisson log-linear models. The size of the conditioning set of variables can vary from 0 (simple independence) up to many variables. We also provide a function in R for performing the test. Instead o...

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Bibliographic Details
Published in:Journal of Data Science 2021-03, Vol.15 (2), p.351-360
Main Author: Tsagris, Michail
Format: Article
Language:English
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Summary:We demonstrate how to test for conditional independence of two variables with categorical data using Poisson log-linear models. The size of the conditioning set of variables can vary from 0 (simple independence) up to many variables. We also provide a function in R for performing the test. Instead of calculating all possible tables with for loop we perform the test using the log-linear models and thus speeding up the process. Time comparison simulation studies are presented.
ISSN:1683-8602
1680-743X
1683-8602
DOI:10.6339/JDS.201704_15(2).0010