how can I sort an array of elements corresponding to another array of elements in decreasing order?

    A = [0.4049    0.1354    0.0914    0.0578    0.0634    0.0494    0.0494    0.0494    0.0494    0.0494]
    B = [1 2 3 4 5 6 7 8 9 10]

So 0.4049 corresponds to 1, 0.1354 corresponds to 2, 0.0914 corresponds to 3 etc. I want A to be sorted in decreasing order and B to be in the order that A has come out in. Sorry I don't know if that is clear.

Thanks in advance.

Answer 1

[Kirby Fears]

Try this out:

% sort A in descending order (decreasing A values) 
% and keep the sort index in "sortIdx"
[A,sortIdx] = sort(A,'descend');

% sort B using the sorting index
B = B(sortIdx);

Try consulting the documentation for sort if you have other questions along these lines.

Hope this helps.

Answer 2

[dpb]

[A,idx]=sort(A,'descend');
B=B(idx);

doc sort % for details