# Nested Vectors/Arrays to multidimensional tensor

**URL:** <https://discourse.julialang.org/t/nested-vectors-arrays-to-multidimensional-tensor/36186>\
**Category:** General Usage\
**Created:** [March 19, 2020, 2:23pm UTC](https://discourse.julialang.org/t/nested-vectors-arrays-to-multidimensional-tensor/36186 "2020-03-19T14:23:07Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![mcabbott](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mcabbott/32/6603_2.png) [@mcabbott](https://discourse.julialang.org/u/mcabbott)\
**Post date:** [March 19, 2020, 3:23pm UTC](https://discourse.julialang.org/t/nested-vectors-arrays-to-multidimensional-tensor/36186/3 "2020-03-19T15:23:12Z")

</div>

I have some packages which may interest you (one [just announced](https://discourse.julialang.org/t/ann-lazystack-slicemap-starslice/36072) this week):

```julia
julia> data = [[rand(13,14) for i in 1:12] for j in 1:11];

julia> using LazyStack 

julia> stack(stack.(data)) |> size # this is a view, copy for Array
(13, 14, 12, 11)

julia> permutedims(stack(stack.(data)), (4,3,1,2)) |> size
(11, 12, 13, 14)

julia> using TensorCast

julia> size(@cast out[a,b,c,d] := data[a][b][c,d])
(11, 12, 13, 14)

```

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