Obtain the sorted index vector
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Suppose a vector with element. in Matlab, I can use the following code to sort the vector in descending order as follow:
y=sort(x,'descend'), for example, x=[0.5; 0.4; 0.6; 0.9], then y=[0.9; 0.6; 0.5; 0.4].
I need to Obtain the sorted index vector. Here it will be z=[4; 3; 1; 2]
I need to find z for any arbitrary sorted vector.
采纳的回答
Use the second output of sort
x=[0.5; 0.4; 0.6; 0.9]
[y,z] = sort(x,'descend')
更多回答（1 个）
x=[0.5; 0.4; 0.6; 0.9];
y=sort(x,'descend');
[Lia,Locb] = ismember(y,x);
z=Locb'
% if want as a column vector
out=Locb(:)
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