In R 3.4.0 RC, argument list of 'c' as S4 generic function has become (x, ...) . However, "S4 methods" section in documentation of 'c' (c.Rd) is not updated yet.
Also, in R 3.4.0 RC, 'c' method of class "Date" ('c.Date') is still not explicitly documented. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel