Hello,
Inline.
Às 21:32 de 07-07-2018, Hadley Wickham escreveu:
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.
In which case it would be
(length(dim(.)) - sum(dim(.) == 1)) %in% c(0, 1)
Hope this helps,
Rui Barradas
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
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