I agree that it's cleaner to remove the extra attributes -- that's the
point of as.matrix.Surv(), to produce a matrix that doesn't include any
extra details of how Surv objects are implemented.
-thomas
On Fri, Dec 7, 2012 at 3:48 AM, Terry Therneau wrote:
> 1. A Surv object is a matrix with
1. A Surv object is a matrix with some extra attributes. The as.matrix.Surv function
removes the extras but otherwise leaves it as is.
2. The last several versions of the survival library were accidentally missing the
S3method('as.matrix', 'Surv') line from their NAMESPACE file. (Instead it's
