Generate random's number?

2012 10 31
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Hi;
How can I create a random's stream that generated only one number?
Exemple;
I have this strema 0,40,80,110,150,180.... I would like that to have a variable rappresented by one number choosed randomly from the stream.
Thanks Edoardo

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Matt J
Matt J 2012-10-31

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out=stream(randi(length(stream)));

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José-Luis
José-Luis 2012-10-31

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nVals = numel(your_stream);
your_val = your_stream(randperm(nVals,1));

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