[R] testing proportional hazard in a Cox model including atime-varying covariate
christos at silicoinsights.com
Mon Apr 3 21:10:00 CEST 2006
in library 'survival'
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Boudreau
Sent: Monday, April 03, 2006 2:58 PM
To: r-help at stat.math.ethz.ch
Subject: [R] testing proportional hazard in a Cox model including
I am using a syntax like coxph(Surv(start, stop, event) ~ X, data) to
estimate the effect of X, which may change at each measurement (every 6
months). Is there anyone who knows a way to test the proportional hazard
assumption in that case?
Thank you in advance
[[alternative HTML version deleted]]
More information about the R-help