Generate a random matrix with 4 specifik values

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basma awad
basma awad 2020-11-24
回答： Jeff Miller 2020-11-24
hello i want to generate a random matrix tnat has 16 rows and 10^5 coloums that contains 4 differen values [-1,1,-j,j]. can anyone help me

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Jeff Miller
Jeff Miller 2020-11-24
maybe this?
j = 2.5; % insert whatever value of j you want to use
vals = [1,-1, j, -j];
pos = randi(numel(vals),15,10^5);
randmatrix = vals(pos);

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