该文讨论了单纯形分布广义线性模型和广义非线性模型的影响分析问题,得到了若干有用的诊断统计量;证明了数据删除模型和均值漂移模型的的等价性定理.同时还研究了该模型的变离差检验,得到了Score检验统计量.最后给出了两个实例,说明该文方法的应用价值.
In this paper, by introducing a specific linear model, several influence measures are proposed for simplex distribution models (SDM), based on Barndorff-Nielsen and Jorgensen (1991), Jorgensen (1997), and Song and Tan (2000). The equivalency of case-deletion models and mean-shift outlier models in SDM is presented. The diagnostic test for varying dispersion in SDM is investigated and the score statistics are obtained. The proposed diagnostic measures are illustrated with examples.