>>>>> Therneau, Terry M , Ph D via R-devel
>>>>> on Wed, 30 Jul 2025 09:04:39 -0500 writes:
> In the survival package the survConcordance function was replaced by
concordance a while
> ago, the latter works for any ordered response (continuous, binary,
survival, ...).
> I deprecated the old one a couple of years ago.
> How long should I have this persist before converting it to Defunct and
removing the old
> function?
> Terry
> --
> Terry M Therneau, PhD
> Department of Quantitative Health Sciences
> Mayo Clinic
> thern...@mayo.edu
> "TERR-ree THUR-noh"
Making it defunct is different than removing it.
You'd replace the old function by a much shorter version
survConcordance <- function(formula, data, weights, subset, na.action)
.Defunct("concordance")
and also update help files, and possibly examples / demos /
tests.
For such an important and long-history package as `survival`
I'd then keep this little bit of code and docs "forever".
If in 20 years, somebody tries to run R code from a script or a
book that is 30 years old, they would still be happy to be
shown why their code calling survConcordance() does not run,
and how they can amend it ..
Martin
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