Effective sample size for a mixture prior

被引:2
|
作者
Egidi, Leonardo [1 ]
机构
[1] Univ Trieste, Dept Econ Business Math & Stat Bruno Finetti, Via Valerio 4-1, I-34127 Trieste, Italy
关键词
Statistical application; Clinical trial; Prior-data conflict; VARIABLE SELECTION; CHECKING;
D O I
10.1016/j.spl.2021.109335
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
Mixture prior distributions are much used in statistical applications, such as clinical trials, especially to avoid prior-data conflicts. We explicitly prove that the effective sample size (ESS) of a mixture prior rarely exceeds the ESS of any individual mixture component density of the prior. (c) 2021 Elsevier B.V. All rights reserved.
引用
收藏
页数:5
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