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How can I generate a binary matrix with a condition on the rows and columns?

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Ideth Kara
Ideth Kara 2022-8-18
评论： Ideth Kara 2022-8-19
Hello everyone!
i have a matrix (M,N)
i want to fill it with "0" and "1" values under the following condition : sum in each row equal to 1 and the sum of each colomun equal to k
this is an example of the required result , which k=2
1 0 0 0 0
1 0 0 0 0
0 1 0 0 0
0 1 0 0 0
0 0 1 0 0
0 0 1 0 0
0 0 0 1 0
0 0 0 1 0
0 0 0 0 1
0 0 0 0 1
Would you please help me ?

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采纳的回答

Walter Roberson
Walter Roberson 2022-8-18
Ran in:
M = 10; N = 5;
k = 2;
if M ~= N * k
error('inconsistent sizes, would not be able to create a matrix with the required properties')
end
output = repelem(eye(N), k, 1)
output = 10×5
1 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1

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