Arrays

Arrays

Basic functions

ndims(A::AbstractArray) → Integer

Returns the number of dimensions of A.

julia> A = ones(3,4,5);

julia> ndims(A)
3

size(A::AbstractArray[, dim...])

Returns a tuple containing the dimensions of A. Optionally you can specify the dimension(s) you want the length of, and get the length of that dimension, or a tuple of the lengths of dimensions you asked for.

julia> A = ones(2,3,4);

julia> size(A, 2)
3

julia> size(A,3,2)
(4,3)

indices(A)

Returns the tuple of valid indices for array A.

indices(A, d)登录查看完整内容