Generalized linear mixed model;
Optimal design;
Poisson regression;
Quasi-likelihood;
Random coefficients;
MODELS;
D O I:
10.1016/j.jspi.2012.07.009
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:
Count data may be described by a Poisson regression model. If random coefficients are involved, maximum likelihood is not feasible and alternative estimation methods have to be employed. For the approach based on quasi-likelihood estimation a characterization of design optimality is derived and optimal designs are determined numerically for an example with random slope parameters. (C) 2012 Elsevier B.V. All rights reserved.