On the Metricity of the Chatterjee Correlation Coefficient

Flavio Chierichetti, Mirko Giacchini and Ravi Kumar

The American Statistician, 2026, vol. 80, issue 2, 310-317

Abstract: We show that the distance measure implied by the recently proposed Chatterjee coefficient of correlation can violate the triangle inequality, both in theory and in practice.

Date: 2026
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DOI: 10.1080/00031305.2025.2571183

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