random matrix

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Mate 2u
Mate 2u 2011-4-13
I want to create 2 random matrixes (5x5). One where all the sums of the horizontal axis equal 1 and one where all the vertical axis equal to 1. Any help? Additionally all the random numbers should be ->x>1

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回答（1 个）

Sean de Wolski
Sean de Wolski 2011-4-13
x1 = rand(5);
x2 = rand(5);
x1 = bsxfun(@rdivide,x1,sum(x1,1));
x2 = bsxfun(@rdivide,x2,sum(x2,2));
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Oleg Komarov
Oleg Komarov 2011-4-13
I would suggest http://www.mathworks.com/matlabcentral/fileexchange/9700-random-vectors-with-fixed-sum since a normalization doesn't guarantee uniformly random sets.

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