Multi-sample tests for axial data from Watson distributions

被引：0
|
作者：
Adelaide Figueiredo
机构：
[1] Universidade do Porto,Faculdade de Economia/LIAAD
来源：
AStA Advances in Statistical Analysis | 2009年 / 93卷
关键词：
Analysis of variance; Directional data; Likelihood ratio test; Watson distribution;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The Watson distribution is one of the most used distributions for modeling axial data. In some situations, it is important to investigate if several Watson populations differ significantly. In this paper, we develop likelihood ratio tests and the ANOVA for testing the hypothesis of the equality of the directional parameters of several Watson distributions with different concentrations. We also determine the empirical power of the ANOVA and LR tests for some dimensions of the sphere.
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页码：371 / 386
页数：15
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