ElasticArrays provides resizeable multidimensional arrays for Julia.
An ElasticArray is a fast, contiguous array that can grow and shrink, but
only in its last dimension:
using ElasticArrays
A = ElasticArray{Int}(undef, 2, 3, 0)
for i in 1:4
append!(A, rand(0:99, 2, 3))
end
size(A) == (2, 3, 4)
resize!(A, 2, 3, 2)
size(A) == (2, 3, 2)However
resize!(A, 2, 4, 2)would result in an error, as only the size of the last dimension may be changed.