[R] finding out if a method exists

Therneau, Terry M., Ph.D. therneau at mayo.edu
Tue Mar 28 15:40:04 CEST 2017

Thanks much Duncan.  Having someone do the work for me is even better than a function!
The cmatrix function will be to make contrast matrices BTW.

On 03/28/2017 08:11 AM, Duncan Murdoch wrote:
> On 28/03/2017 8:53 AM, Therneau, Terry M., Ph.D. wrote:
>> I'm thinking of adding a new "cmatrix" function/method to the survival package but before
>> I do I'd like to find out if any other packages already use this function name.   The
>> obvious method is to look at the NAMESPACE file for each package in CRAN and read the
>> export list.
>> This is the kind of task for which someone, somewhere will have written routines.  I just
>> don't know who or where.
>> Any hints?
> Google is pretty good at finding documentation.  Since CRAN won't let you publish a
> package that exports a function without documenting it, that's probably good enough
> (though it will lead to a few false positives, e.g. multcomp::simtest has an argument
> named cmatrix).
> I don't see a cmatrix function in a Google search.
> I happen to have a copy of all CRAN packages on my system, and searching the NAMESPACE
> files finds no cmatrix, but it does find ibd::Cmatrix.  So I think you're safe.
> Duncan Murdoch

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