Dear all,
The help file for the generic function vcov states
"Classes with methods for this function include: 'lm', 'glm', 'nls', 'lme',
'gls', 'coxph' and 'survreg' (the last two in package 'survival')."
Since, I am not able to use vcov.coxph(), I am wondering whether I am
missing something (as I suspect..)
regards,
vito
library(survival)
> o<- coxph( Surv(time, status) ~ x + strata(sex), test1) #example from
?coxph
> vcov(o) #of course I could use o$var
Error in vcov(o) : no applicable method for "vcov"
> R.version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 0.0
year 2004
month 10
day 04
language R
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