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2021 Two-sample inference for sparse functional data
Qiyao Wang
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Electron. J. Statist. 15(1): 1395-1423 (2021). DOI: 10.1214/21-EJS1802

Abstract

In this paper, we develop an asymptotic χ2 test for detecting differences among mean functions when sparse and irregular observations are drawn from the underlying continuous stochastic processes for each subject. We provide theoretical arguments to justify the effectiveness of the proposed test procedure. Numerical experiments, including simulation studies and applications to a CD4 count data set and an eBay online auction data set, are presented to demonstrate the good performance of the developed test.

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Qiyao Wang. "Two-sample inference for sparse functional data." Electron. J. Statist. 15 (1) 1395 - 1423, 2021. https://doi.org/10.1214/21-EJS1802

Information

Received: 1 September 2019; Published: 2021
First available in Project Euclid: 16 March 2021

Digital Object Identifier: 10.1214/21-EJS1802

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Vol.15 • No. 1 • 2021
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