2017-09-26 13:41 GMT+02:00 Holger Hoefling <hhoef...@gmail.com>: > Hi Thierry, > > You write: > > "If a package requires a data.frame, then it is up to the _user_ to > provide a data.frame (and a tibble is not a data.frame). " > > Actually, as pointed out before, calling > > is.data.frame > > on a tibble returns TRUE. So I think that R says - yes, a tibble is a data > frame. What would be the point of having a "is.data.frame" function, if you > can't trust its answer?
is.data.frame is just a wrapper for inherits(x, "data.frame"). As Daniel pointed out before, inherits(x, "data.frame", TRUE) == 1 returns TRUE for data frames and FALSE for tibbles. Iñaki ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
