[R] coxph.detail() does not work
tlumley at u.washington.edu
Tue Sep 13 22:04:57 CEST 2005
On Tue, 13 Sep 2005, Zhen Zhang wrote:
> Hello everyone,
> I tried to use coxph.detail() to get the hazard function. But a warning
> messge always returns to me, even in the example provided by its help
>> fit <- coxph(Surv(futime,fustat) ~ age + rx + ecog.ps, ovarian, x=TRUE)
>> fitd <- coxph.detail(fit)
> Warning message:
> data length  is not a sub-multiple or multiple of the number of
> rows  in matrix
> Can anyone suggest why it does not work?
It does work. That's a warning, not an error.
If you want to know why the warning is there, it's because the code turns
a 37-element vector into a 12x3 matrix. This drops the last element. In
S-PLUS, and in some older versions of R, there is no warning, but in
current R there is a warning. The answer is the same, though.
More information about the R-help