How can a matrix of randperm be generated with variable n*m?
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I want to generate a matrix of n*m size, which looks like
where
n=3
m=4
A=[randperm(m); randperm(m);randperm(m);]
These value may change with problem size. How can i generate this matrix since n and m vary? No loop please!
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採用された回答
John D'Errico
2020 年 2 月 12 日
SImpler than you think.
M = 4;
N = 3;
[~,A] = sort(rand(M,N),1)
A =
1 1 3
4 2 1
2 3 4
3 4 2
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