The NaN/Inf message is almost certainly from a singular fit.
I would be interested in a copy of the data set to test it: data sets that cause this
are rare, and help me to tune the convergence/signularity criteria in the program.
Note: it is much easier to use coxph(survobj ~ therapy + Recep
On Feb 13, 2013, at 7:46 AM, Cindy Yao wrote:
> Dear R-helpers:
>
> I am trying to fit a multivariate Cox proportional hazards model,
> modelling survival outcome as a function of treatment and receptor
> status. The data look like below:
>
> # structure of the data
> str(sample.data)
> List of
Dear R-helpers:
I am trying to fit a multivariate Cox proportional hazards model,
modelling survival outcome as a function of treatment and receptor
status. The data look like below:
# structure of the data
str(sample.data)
List of 4
$ survobj : Surv [1:129, 1:2] 0.8925+ 1.8836+ 2.1191+ 5.3744+
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