Say I have a n-by-n array and I want to index at a bunch of places
If I was in numpy, I would do something like A[[1,1], [2, 5], [92, 2], [4, 10]
But this doesn’t work in Julia. Is there a way to do this??
One way is to use CartesianIndex
julia> a = rand(3,3)
3×3 Matrix{Float64}:
0.882002 0.04332 0.477523
0.829209 0.425031 0.0362383
0.303801 0.161715 0.422988
julia> a[[CartesianIndex(1,1), CartesianIndex(3,3)]]
2-element Vector{Float64}:
0.8820020685738753
0.4229883416619057
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ah cool! and it works with @views. thanks!
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