An efficient and robust inference method based on empirical likelihood in longitudinal data analysis

Shuwen Hu and Jianwen Xu

Communications in Statistics - Theory and Methods, 2022, vol. 51, issue 4, 994-1010

Abstract: This paper presents a new efficient and robust inference method by combing the robust generalized estimating equations and the well-known empirical likelihood method in longitudinal data analysis. Based on a bounded exponential score function and leverage-based weights, robust auxiliary random vectors are constructed to achieve robustness against outliers both in the response and the covariate domains. Moreover, the additional tuning parameter in the exponential score function can be automatically selected by the observed data. Finally, some simulation studies and a real data analysis are carried out to demonstrate the performances of the proposed method.

Date: 2022
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DOI: 10.1080/03610926.2020.1757110

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