Title
On sufficient dimension reduction for proportional censorship model with covariates
Abstract
The requirement of constant censoring parameter @b in Koziol-Green (KG) model is too restrictive. When covariates are present, the conditional KG model (Veraverbekea and Cadarso-Suarez, 2000) which allows @b to be dependent on the covariates is more realistic. In this paper, using sufficient dimension reduction methods, we provide a model-free diagnostic tool to test if @b is a function of the covariates. Our method also allows us to conduct a model-free selection of the related covariates. A simulation study and a real data analysis are also included to illustrate our approach.
Year
DOI
Venue
2010
10.1016/j.csda.2010.02.022
Computational Statistics & Data Analysis
Keywords
Field
DocType
constant censoring parameter,multiple covariates,conditional kg model,conditional koziol–green model,sufficient dimension reduction,sufficient dimension reduction method,proportional censorship model,related covariates,simulation study,model-free diagnostic tool,real data analysis,proportional hazards model,model-free selection,data analysis,proportional hazard model,dimension reduction
Econometrics,Covariate,Proportional hazards model,Statistics,Sufficient dimension reduction,Censoring (statistics),Mathematics
Journal
Volume
Issue
ISSN
54
8
Computational Statistics and Data Analysis
Citations 
PageRank 
References 
0
0.34
4
Authors
1
Name
Order
Citations
PageRank
Xuerong Meggie Wen121.23