This post is about the offset procedure of the Cox model after shrinkage of the coefficients, followed by recalibration of the baseline hazard function. This seems straightforward to apply like with the logistic regression model but some caveats remain. These will be unraveled here.
This post is about the internal and external validation of Cox regression models and how to adjust the baseline hazard function.
This blog shows how to externally validate a Cox regression prognostic model according to all steps in the paper of Royston & Altman. R code available.
This post is about different functions of the survival package, like basehaz, predict.coxph, survfit, termplot, what kind of results they provide and how they are calculated.