How can I check if a vector, say A, contains a particular value, and another vector, say B, contains another particular value - in the same row as the value was found in vector A? For example:
Target value in A is 9
Target value in B is 7
A = [1;2;3;9]
B = [8;1;2;7]
How can I check that the combination 9 and 7 exists?
How about
C = reduce(&, hcat(A, B) .== [9 7], dims=2)
4×1 BitArray{2}:
0
0
0
1
If you want the index, you can use
findall(C)
1-element Array{CartesianIndex{2},1}:
CartesianIndex(4, 1)
zip is probably good for this
julia> x = [1, 2, 3]
3-element Array{Int64,1}:
1
2
3
julia> y = [4, 5, 6]
3-element Array{Int64,1}:
4
5
6
julia> (3, 6) in zip(x, y)
true
also, use , instead of ;