May 2022 Empirical process of concomitants for partly categorial data and applications in statistics
Daniel Gaigall, Julian Gerstenberg, Thi Thu Ha Trinh
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Bernoulli 28(2): 803-829 (May 2022). DOI: 10.3150/21-BEJ1367


On the basis of independent and identically distributed bivariate random vectors, where the components are categorial and continuous variables, respectively, the related concomitants, also called induced order statistic, are considered. The main theoretical result is a functional central limit theorem for the empirical process of the concomitants in a triangular array setting. A natural application is hypothesis testing. An independence test and a two-sample test are investigated in detail. The fairly general setting enables limit results under local alternatives and bootstrap samples. For the comparison with existing tests from the literature simulation studies are conducted. The empirical results obtained confirm the theoretical findings.


The authors wish to thank the two Referees for very helpful comments and suggestions which improved the paper significantly. Special thanks goes to the Associate Editor who drew the attention of the authors to the work of Chatterjee [4].


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Daniel Gaigall. Julian Gerstenberg. Thi Thu Ha Trinh. "Empirical process of concomitants for partly categorial data and applications in statistics." Bernoulli 28 (2) 803 - 829, May 2022.


Received: 1 May 2020; Revised: 1 February 2021; Published: May 2022
First available in Project Euclid: 3 March 2022

MathSciNet: MR4388920
zbMATH: 07526566
Digital Object Identifier: 10.3150/21-BEJ1367

Keywords: bootstrap , Categorial variable , concomitant , empirical process , Independence test , induced order statistic , local alternatives , triangular array , two-sample test

Rights: Copyright © 2022 ISI/BS


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Vol.28 • No. 2 • May 2022
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