I’m trying to unwrap a vector of vectors of vectors into one vector and my first thought is to [k for i in vecs, j in i, k in j] or [k for k in j, j in i, i in vecs] ERROR: UndefVarError: i/j not defined Do I need to use a full for loop or am I missing something?

Perhaps you mean something like: [ k for i in vecs for j in 1:i for k in 1:j ] Your i in j in i is an element and not iterable. Same for j in k in j.

ok, I see vector of vector… ok, it should work, but with for and not , separated. julia> a= [ [1,2,3], [2,3,4,5,6] ] 2-element Vector{Vector{Int64}}: [1, 2, 3] [2, 3, 4, 5, 6] julia> [j for i in a for j in i ] 8-element Vector{Int64}: 1 2 3 2 3 4 5 6 Iterators.flatten(a) isn’t going dee…

yes! there it is! thank you. easy enough to iterate with flatten.

Is there a way to have a nested expression loop

New to Julia

oheil September 5, 2022, 11:07am 4

Best to check here: https://discourse.julialang.org/t/how-do-you-unfold-a-nested-julia-array

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Is there a way to have a nested expression loop

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