Hi Martin,
I think this is a general problem with any function that does dispatch
on ... - I think for well-defined behaviour you always need to
dispatch on pairs, folding/reducing (like in your code) to get a
single value. The downside of this approach is obviously performance:
for n inputs, you
This was originally a bug report about Matrix,
https://r-forge.r-project.org/tracker/?func=detail&atid=294&aid=6325&group_id=61
but the bug is rather a "design" bug in R, or a limitation.
This e-mail is a report of the status quo as I see it, and
call for comments, sugguests, help/hints for wor
