dims {vctrs} | R Documentation |
vec_empty()
returns TRUE
if vec_size()
is zero.
vec_dims()
gives the dimensionality (i.e. number of dimensions)
vec_dim()
returns the size of each dimension
vec_empty(x) vec_dim(x) vec_dims(x)
x |
A vector |
Unlike base R, we treat vectors with NULL
dimensions as 1d. This
simplifies the type system by eliding a special case. Compared to base R
equivalent, vec_dim()
returns length()
, not NULL
, when x
is 1d.
# Compared to base R x <- 1:5 dim(x) vec_dim(x)