So I have an array of elements, x and y x = [11; 22; 5; 12; 42; 21; 41; 32; 10; ] y = [0; 1; 0; 1; 0; 1; 0; 1; 0; ]

Each element position in array x corresponds to array y elements. For example, 11 corresponds to 0, 22 corresponds to 1, 5 corresponds to 0, etc. I went ahead and created a new array which orders the x array in ascending order:

Now given the new array: c = [5; 10; 11; 12; 21; 22; 32; 41; 42]

I want to now remake the y array so that the array aligns with the new array c, I am having trouble thinking of a way to do that in a way that is not hard coding. Please help.

CodePudding user response：

You want the second output of sort, which tells you the sorting that was applied to its input, so you can apply it to the other array:

[c, ind] = sort(x);
d = y(ind);