MATLAB: I want to create a random matrix

matrix

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!

Best Answer

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,:);

Related Solutions

MATLAB: Matrix multiplication with probability

If p is a matrix the same size as A with the probability values you describe, do this:

   SA = size(A);
   a = rand(SA);
   A = A + (A.*a-A).*(rand(SA)<=p);

At each element of A it is multiplied by the random number in ’a’ with probability in the corresponding element in p. Otherwise the element is unchanged.

It is possible you meant 'a' to be a single random scalar value rather than a matrix of them. If so, change the code to:

a = rand;
A = A + ((a-1)*A).*(rand(size(A))<=p);

MATLAB: Create a random matrix

HM = zeros(a,b);
for k = 1:a
  t = zeros(c,b);
  t(randperm(b*c,d)) = 1;
  HM(k,:) = sum(t,1);
end

Note: This is not a rejection method.

Best Answer

Related Solutions

MATLAB: Matrix multiplication with probability

MATLAB: Create a random matrix

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