配列の並び替えを列挙

MATLABのperm(array))

順列(permutation)がしたい。

v  = [1 4 5 7]
ind = collect(permutations(1:4)) # [1,2,3,4]についての順列を列挙
for k=1:size(ind,1)
    vk = v[ind[k]]
end

[1,4,5,7]
[1,4,7,5]
[1,5,4,7]
[1,5,7,4]
[1,7,4,5]
[1,7,5,4]
[4,1,5,7]
[4,1,7,5]
[4,5,1,7]
[4,5,7,1]
[4,7,1,5]
[4,7,5,1]
[5,1,4,7]
[5,1,7,4]
[5,4,1,7]
[5,4,7,1]
[5,7,1,4]
[5,7,4,1]
[7,1,4,5]
[7,1,5,4]
[7,4,1,5]
[7,4,5,1]
[7,5,1,4]
[7,5,4,1]