D-optimum designs in multi-factor models with heteroscedastic errors

被引:19
|
作者
Rodríguez, C [1 ]
Ortiz, I [1 ]
机构
[1] Univ Almeria, Fac Ciencias Expt, Dept Stat & Appl Math, Almeria, Spain
关键词
D-optimum designs; efficiency function; information matrices; Kronecker product models; additive models; product designs;
D O I
10.1016/j.jspi.2003.12.013
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
This paper considers the construction of D-optimum designs for Kronecker product and additive regression models when the errors are heteroscedastic. Sufficient conditions are given so that D-optimum designs for the multi-factor models can be built from D-optimum designs for their sub-models with a single factor. A robustness study is included to investigate how design efficiencies change when the efficiency functions are miss-specified. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:623 / 631
页数:9
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