Abstract
Graphical methods based on the analysis of residuals are considered for the setting of the highly-used Cox (1972) regression model and for the Andersen-Gill (1982) generalization of that model. We start with a class of martingale-based residuals as proposed by Barlow & Prentice (1988). These residuals and/or their transforms are useful for investigating the functional form of a covariate, the proportional hazards assumption, the leverage of each subject upon the estimates of ß, and the lack of model fit to a given subject.
Original language | English (US) |
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Pages (from-to) | 147-160 |
Number of pages | 14 |
Journal | Biometrika |
Volume | 77 |
Issue number | 1 |
DOIs | |
State | Published - Mar 1990 |
Keywords
- Cox regression
- Deviance
- Influence function
- Martingale
- Outlier detection
- Proportional hazards
- Regression diagnostic
- Residual
ASJC Scopus subject areas
- Statistics and Probability
- Mathematics(all)
- Agricultural and Biological Sciences (miscellaneous)
- Agricultural and Biological Sciences(all)
- Statistics, Probability and Uncertainty
- Applied Mathematics