Displaying 1 result from an estimated 1 matches for "wlh0301".
2004 Oct 06
4
R2.0.0 bug in function vcov in library survival (PR#7266)
...#39; on how to cite R or R packages in publications.
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[Previously saved workspace restored]
> rm(list=ls())
> load("~/R/wlh0301/data/breast.RData")
> library(survival)
Loading required package: splines
> u2<-coxph(Surv(time,event) ~ age + cbmi + smoker + drink , data=breast.1)
> tmp <- vcov(u2)
Error in vcov(u2) : no applicable method for "vcov"
>
> class(u2)
[1] "coxph"