MATLAB: How to find the Nth high number in a matrix A

find max valeu matrix 5th nth arrayMATLAB

Hi guys,

I need to find the 5th high number of a matrix. Using the max() function I can only have the 1st one.

Thanks for helping!

Best Answer

As Iain suggested, sort is a great way to go, but as you mention that you have a matrix, you might want to sort every element of the matrix:

sorted = sort(values(:));
sorted(end-4)

Related Solutions

MATLAB: Finding the 10 lowest values

Let's say you have a matrix of 10x10:

   x=rand (10,10);

Sort it by the columns in ascending order:

   y=sort (x,1, 'ascend')

*Now take the 5 first rows - these are the lowest values in every column:

   z=y(1:5, :)

MATLAB: How to find unique values

The ‘Uvals’ array should have the information you want:

D = load('cat cat matlab2.mat');
a = D.a;
non_empty = cellfun(@(x)~isempty(x), a);
[r,c] = find(non_empty);
for k1 = 1:max(c)
    idx = r(c == k1);
    vals = a(idx,k1);
    Uvals{k1} = unique(vals);                   % Unique Values
end

Best Answer

Related Solutions

MATLAB: Finding the 10 lowest values

MATLAB: How to find unique values

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