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how to generate a RANDOM matrix of 0's and 1's such that the number of 1's in any column is the same.

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sanjana murugavel
sanjana murugavel 2016-8-15
评论： sanjana murugavel 2016-8-18
The positioning of 0's and 1's across the matrix should be random. At the same time, the number of 1's should be fixed. Something like this {1 0 1 0 1 0; 0 1 0 1 0 0; 1 0 1 0 1 0; 0 1 0 1 0 1; 0 0 0 0 0 1 0 0 0 0 0 0} I tried using randperm randi .but I am not getting equal number of 1's Thanks in advance

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Azzi Abdelmalek
Azzi Abdelmalek 2016-8-15
编辑：Azzi Abdelmalek 2016-8-15
n=6
A=zeros(n)
m=2 % number of 1 per column
for k=1:n
idx=randperm(n,m)
A(idx,k)=1
end

更多回答（2 个）

José-Luis
José-Luis 2016-8-15
numCol = 5;
numOnes = 3;
numRows = 10;
result = ones(numRows,numCol);
for ii = 1:numCol
result(:,ii) = randperm(numRows) <= numOnes;
end
Azzi Abdelmalek
Azzi Abdelmalek 2016-8-15
n=6
m=2
A=zeros(n)
A(cell2mat(arrayfun(@(x) randperm(n,m)+6*x,0:n-1,'un',0)))=1

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