A nonparametric test for diagnosis of the proportionality assumption

被引：0

作者：

Choi, Jong-Hoo

Park, Hyo-Il

机构：

[1] Korea Univ, Dept Informat Stat, Choongnam 339700, South Korea

[2] Chong Ju Univ, Dept Stat, Chong Ju 360764, Choong Book, South Korea

来源：

STATISTICAL PAPERS | 2007年 / 48卷 / 03期

关键词：

censored data; cumulative hazard function; initial effect model; proportionality; survival function; two-sample problem;

D O I：

10.1007/s00362-006-0348-1

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：

We propose a nonparametric test for diagnosis of the proportionality assumption between hazard functions based on a functional equation. Because of involvement of censoring distribution, we consider the test procedure in an asymptotic manner and obtain the asymptotic normality for the proposed test statistic. Then we discuss the rationale of use of the functional equation for the initial effect model. Finally we compare our test with others using an example.

引用

页码：467 / 477

页数：11

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