I was suprised by julia> x = Array{Float64, 4}[] 0-element Array{Array{Float64,4},1} julia> cat(x..., dims=4) 0-element Array{Any,1} I guess I expected this to be type stable even in the empty x case, i.e. a result like julia> zeros(0,0,0,0) 0×0×0×0 Array{Float64,4} Am I the only one who is (a …

Concatenate empty list of arrays

carstenbauer October 30, 2018, 3:11pm 2

Ok, thinking it as two separate operation, splatting and concatenating, I guess it makes sense. Sorry for the spam.

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