> It needs to have ... in the formal argument list because the generic > subset() does. > > It could enforce a run-time warning that some arguments were being skipped > (by testing length(list(...)) for example), but then NextMethod might fail, > in a case where an object has a complicated class vector.
That wouldn't be a problem if the check was implemented in subset.data.frame, would it? Hadley -- Chief Scientist, RStudio http://had.co.nz/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
