Ӧ�ø���ͳ�� 2012, 28(2) 217-223 DOI:      ISSN: 1001-4268 CN: 31-1256

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Local Influence Analysis of Mixed Effect Linear Models Based on M-Estimation
Sun Huihui,Lin Jinguan
School of Mathematics and Science, Yancheng Teachers University, Department of Mathematics, Southeast University
Abstract:

In this paper, the Fisher scoring method
is applied to get M-estimator (robust estimator) in the mixed
effects linear model for longitudinal data. And its asymptotic
property is given later. Then the local influence analysis of
variance of the error is studied based on M-estimation. At last the
method is illustrated by the grape sugar data example.

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