All I would like to sort a vector according to a given index (or permutation). I understand that the code below produces a false (last evaluation below) due to the fact that the function creates a local copy of x. How can I modify my function such that x is in sorted differently (i.e. such that the argument is modified)? Thank you in advance.
x=rand(5) anothervector=rand(5) mypermutation=sortperm(x) function change_order!(x,srt) x=x[srt] nothing end before=copy(anothervector) change_order!(anothervector,mypermutation) before==anothervector[mypermutation] #false before==anothervector #true, this should be false before[mypermutation]==anothervector #false, this should be true
