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How to find a random node from a matrix which contains all the nodes?

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    Make up your mind, are you using C# or MatLab? Commented Dec 11, 2010 at 2:53
  • i m using matlab but i was not sure about tag Commented Dec 11, 2010 at 3:00
  • Just type "matlab" and it'll be tagged [matlab]...? Commented Dec 11, 2010 at 3:03
  • i guess...can someone help me out to simulate the code..? Commented Dec 11, 2010 at 3:08
  • You're gonna have to give us a lot more details if you want help. Commented Dec 11, 2010 at 3:10

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I will take a wild guess here and assume that you want to pick a random (i,j) entry from a MxN matrix A.

Initialize i and j using floor(M*rand(1,1)) and floor(N*rand(1,1)), respectively. Then call A(i,j).

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Here's a condensed version: random_element = A(randi(numel(A)));

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