Generate random's number?

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

Answer 1

[Matt J]

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

[Edoardo]

Thanks you very much :)

Answer 2

[José-Luis]

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

[Edoardo]

Thanks you very much :)