On Sat, Jul 7, 2018 at 1:50 PM, Gabe Becker <becker.g...@gene.com> wrote: > Hadley, > >> >> I was thinking primarily of completing the set of is.matrix() and >> is.array(), or generally, how do you say: is `x` a 1d dimensional >> thing? > > > Can you clarify what you mean by dimensionality sense and specifically 1d > here?
What do we call a vector that is not an array? (or matrix) What do we call an object that acts 1-dimensional? (i.e. has length(dim()) %in% c(0, 1)) ? > You can also have an n x 1 matrix, which technically has 2 dimensions but > conceptually is equivalent to a 1d array and/or a vector. Yes. You can also have array that's n x 1 x 1. > Also, are you including lists in your conceptions of 1d vector here? I'm > with Duncan here, in that i'm having trouble understanding exactly what you > want to do without a bit more context. Isn't it standard terminology that a vector is the set of atomic vectors + list? Hadley -- http://hadley.nz ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
