MATLAB: Ranking Numbers based on Size

assigninequalityranking

I have a large dataset of numbers, and am attempting to assign a number to each of them — ranking smallest to largest.

A = [1 5 0 9 6 4]

The following is an example, where the numbers on the right are from the row vector 'A', and the numbers on the right are "assigned" based on how large the numbers are:

1 — 2

5 — 4

0 — 1

9 — 6

6 — 5

4 — 3

Thank you!

Best Answer

A = [1 5 0 9 6 4]
[~, ~, R] = unique(A)

Related Solutions

MATLAB: Ranking of an array.

I assume, the result should be [2 4; 5 6; 3 1] with the last two elements swapped. The method is called sorting, not ranking.

M = [1,5; 7 9; 2 0];
[dummy, index] = sort(M(:));
R(index) = 1:numel(M);
R = reshape(R, size(M));

MATLAB: Sort and assign ranking

You can use the third return argument of unique(): Try this:

X = [ 13 15 5 5 0 0 0 1 0 3] 
[sortedValue_X , X_Ranked] = sort(X,'descend')
[uniqueValues, ia, ic]=unique(sortedValue_X)
X_Ranked = max(ic)-ic+1 % <- there's your answer!

In command window:

X_Ranked =
     1     2     3     3     4     5     6     6     6     6

Best Answer

Related Solutions

MATLAB: Ranking of an array.

MATLAB: Sort and assign ranking

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