Le vendredi 30 décembre 2011 à 12:46 -0800, thebennjammin a écrit : > I have fit an accelerated failure time model using coxph, and have what seems > to be a simple question that I can't figure out. Please specify the exact package, functions and actual code you use. coxph(), as the name says, runs a Cox *proportional hazards* model, which is different from an accelerated failure time model. You should use survreg (package survival) if you want to run the later family.
> Given a vector of predictor values X, the survival time S[t|X] is the > probability the entity will survive longer than some time t. Now, how do I > calculate this for a specific value of t? Package rms offers convenience functions to compute and plot this. See psm() and predict.psm(). Regards ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
