How to select a random number from a set of numbers

Got a little dilemma. Can you guys help me select a random number from a set of numbers. Using this code,

p = [0.4399,0.4138,0.3888,0.3650,0.3377,0.3120]; pos = randi(length(p)); AirDensity = p(pos)

I can get Matlab to choose one of those numbers from my set of values but it keeps selecting the same numbers over and over again. I think this is because "pos" has been attributed a number in the line before. Is there anyway to get Matlab to choose a different one every time so that only the last line of code needs repeating ?

Many thanks :)

G

Answer 1

[Sean de Wolski]

doc randperm %?

E.g.

x = sin(1:10);
x(randperm(numel(x),3))

Answer 2

[Gabriel]

Thanks Sean ! Got it !