The fastest way to create a random network?

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Ulrik William Nash
回答： Roger Stafford 2018-1-8
I am trying to create a square matrix of 1's and zeros, where 1's represents a communication link and 0's represents a lack of the same. In this matrix, the probability of observing 1 at each location is given by beta.
What is the most efficient way to create the stated network? I have tried the following, but there are no doubt better ways:
n = 100 beta = 0.25
A = rand(n,n) B = find(A<=beta) C = find(A>beta) A(B) = 1 A(C) = 0

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Roger Stafford
Roger Stafford 2018-1-8
A = 1*(beta>=rand(n));

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