MATLAB: How to find the top 10% value of the matrix

Question

HI,

I have a 10×10 matrix and the value is random

How do I find the the top 10% value of the matrix?

ex: if the value is 1~100,I want to get the answer is 90~100

Thanks~

Answer 1

x = the_matrix;
[~,idx] = sort(x(:));
y = x(idx(1:10));