Robust inference for generalized partially linear mixed models that account for censored responses and missing covariates -- an application to Arctic data analysis

Kalyan Das and Angshuman Sarkar

Journal of Applied Statistics, 2014, vol. 41, issue 11, 2418-2436

Abstract: In this article, we propose a family of bounded influence robust estimates for the parametric and non-parametric components of a generalized partially linear mixed model that are subject to censored responses and missing covariates. The asymptotic properties of the proposed estimates have been looked into. The estimates are obtained by using Monte Carlo expectation--maximization algorithm. An approximate method which reduces the computational time to a great extent is also proposed. A simulation study shows that performances of the two approaches are similar in terms of bias and mean square error. The analysis is illustrated through a study on the effect of environmental factors on the phytoplankton cell count.

Date: 2014
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DOI: 10.1080/02664763.2014.910886

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