Rank the entries of a matrix with codes.

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Wan-Yi Chiu
Wan-Yi Chiu 2023-5-16
回答： Walter Roberson 2023-5-16
Load a matrix:
[12 4 6;
7 3 8;
1 6 5;
9 2 5]
How to rank each row relative to columns with codes as:
3 1 2
2 1 3
1 3 2
3 1 2
Thank you very much.

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采纳的回答

Walter Roberson
Walter Roberson 2023-5-16
Ran in:
A = [12 4 6;
7 3 8;
1 6 5;
9 2 5]
A = 4×3
12 4 6 7 3 8 1 6 5 9 2 5
[~, idx] = sort(A, 2)
idx = 4×3
2 3 1 2 1 3 1 3 2 2 3 1
[~, rank] = sort(idx, 2)
rank = 4×3
3 1 2 2 1 3 1 3 2 3 1 2

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