I want to create a nxn matrix with all 0s and n randomly placed 1s

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Sahil Bajaj
Sahil Bajaj 2015-11-26
评论： Sahil Bajaj 2015-11-26
I want to create a nxn zero matrix with n randomly placed ones in the matrix
Example
1st try
1 0 0
0 1 0
0 0 1
2nd Try
0 0 1
0 1 1
0 0 0

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采纳的回答

James Tursa
James Tursa 2015-11-26
n = whatever;
x = zeros(n);
x(randperm(n*n,n)) = 1;

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