rewrite an existing matrix into a matrix with 0 and 1

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Leon Phung
Leon Phung 2018-6-7
编辑： KSSV 2018-6-7
I have a matrix A with size 10x10 and each element is a number from 0 to 8, I want to make another matrix that has the same size as A but for the number that bigger than 4 are become 1, and from 4 to 0 are become 0.

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KSSV
KSSV 2018-6-7
编辑：KSSV 2018-6-7
A = randi(8,10,10) ; % random matrix for demo
B = zeros(size(A)) ;
B(A>4) = 1 ;

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