Base.Statistics -- I'm confused by the differences in arguments

General Usage
5

I tested the four methods of re-creating the multidimensional array (C) from my vector B.

So here are the results:

julia> @btime begin
       C = Array{Float64}(undef,size(B[1])...,length(B))
       for i in 1:length(B)
              C[:,:,i] = B[i]
       end
       end
  2.167 μs (24 allocations: 976 bytes)

julia> @btime C = cat(B..., dims=3);
  7.225 μs (81 allocations: 3.48 KiB)

julia> @btime A = reshape(reduce(hcat, B), 2,3,5);
  323.305 ns (4 allocations: 480 bytes)

julia> @btime stack(B);
  25.301 ns (1 allocation: 16 bytes)

Clear winner is the LazyStack.stack() (“view”) method. Disadvantage of this method is the need to install another package. Method reshape is also good.