Mean shift and influence measures in linear measurement error models with stochastic linear restrictions

被引:4
|
作者
Ghapani, F. [1 ]
Rasekh, A. R. [1 ]
Babadi, B. [1 ]
机构
[1] Shahid Chamran Univ Ahvaz, Dept Stat, Ahvaz 6135743311, Iran
关键词
Case deletion; Corrected score method; Influential observations; Linear measurement error models; Outlier detection; Score test;
D O I
10.1080/03610918.2015.1122047
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
We present influence diagnostics for linear measurement error models with stochastic linear restrictions using the corrected likelihood of Nakamura in 1990. The case deletion and mean shift outlier models are developed to identify outlying and influential observations. We derive a corrected score test statistic for outlier detection based on mean shift outlier models. The analogs of Cook's distance and likelihood distance are proposed to determine influential observations based on case deletion models. A parametric bootstrap procedure is used to obtain empirical distributions of the test statistics and a simulation study has been used to evaluate the performance of the proposed estimators based on the mean squares error criterion and the score test statistic. Finally, a numerical example is given to illustrate the theoretical results.
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页码:4499 / 4512
页数:14
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