Insert Array into another

New to Julia
,
1

is there already something like this?

function insert!(a::Array{T,1}, i::Integer, item::Array{T,1}) 
    _growat!(a, i, length(item))
    bd = i + length(item) - 1
    @inbounds for _i in i:bd a[_i] = item[_i-i+1] end
    return a
end

source to compare

2

Maybe splice! ?

splice!(a::Vector, index::Integer, [replacement]) -> item

…
To insert replacement before an index n without removing any items, use splice!(collection, n:n-1, replacement).

1 Like
3

oh thank you!
i had not seen this one hehe, started with Julia yesterday

4

@oxinabox, sorry but do not fully understand how to properly use splice!() to insert one array into another.

It doesn’t seem right to have to loop and adjust the indices after each insertion. A simple (perhaps too simple) example of inserting Y into X:

X = [11, 13, 15, 17]
Y = [12, 14, 16]
ix = [2, 3, 4]

k = 0
for (i,y) in zip(ix, Y)
    splice!(X, i+k:i+k-1, y)
    k += 1
end

julia> X
7-element Vector{Int64}:
 11
 12
 13
 14
 15
 16
 17