Independence test for large sparse contingency tables based on distance correlation

Qingyang Zhang

Statistics & Probability Letters, 2019, vol. 148, issue C, 17-22

Abstract: We propose a new approach to testing independence in a sparse contingency table based on distance correlation measure. We derive the explicit formula of the distance correlation between two categorical variables and suggest a simple permutation test for practical implementation.

Keywords: Sparse contingency table; Independence test; Distance correlation; Projection correlation (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (1)

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DOI: 10.1016/j.spl.2018.12.010

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