I want to create a random matrix?
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Help me!
I want to create a random matrix HM (3,5), it satisfies the following conditions:
1. The value of HM is a nonnegative integer from 0 to 4.
2. The total value of the elements in a row is less than or equal to 5.
Thank you very much!
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Amit
2013-12-29
okay .. an approach would be rejection method .. be careful .. for extremely large matrix this will be a bad idea .. tmp1= randi([0 c],a*100,b); tmp1=tmp1(sum(tmp1,2)<=d); HM=tmp1(1:a,:);
更多回答(1 个)
Amit
2013-12-29
write down all possible ways to get 3 or less than 3 using integers 0-4 like [1 0 0 0 0] [1 1 0 0 0] etc.... pick one of the matrix for each row (randomly) and then use randperm to reorder them.
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Amit
2013-12-29
does b, c and d have any correlation? like in the example case, you have b=c+1, d=c+1
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