How to find the nine biggest numbers?

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Ayob
Ayob 2013-6-21
I have a n*n matrix and I want to find nine biggest numbers in it. How can I do it in MATLAB?

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Tom
Tom 2013-6-21
A = rand(9);
m = sort(A(:),'descend');
m(1:9)

更多回答（1 个）

David Sanchez
David Sanchez 2013-6-21
Sort your matrix in descending order:
m = rand(5,4); % example matrix
[rows cols] = size(m);
m2 = reshape(m,rows*cols,1);
xx = sort(m2,'descend')
grab the elements you want
my_elements = xx(1:9);

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