randomly displaying a string from an array

hi! I was hoping to randomly display one of the following four greetings each iteration, but when i run it, it says that I can't use "any". and when i try "rand" a similar problem occurs where the input must be numeric- how would i do this with strings?

thank you

 ??? Undefined function or method 'any' for input arguments of type 'cell'.

code:

 X = {'hello buddy', 'hi there', 'good morning', 'top o' the morning'}
 disp(any(X))

Answer 1

[Andrei Bobrov]

out = X(randi(numel(X)));

[Muthu Annamalai]

be sure to use the new rng() function, and seed it in a non-predictable way.

Ref: http://www.mathworks.com/help/matlab/ref/rng.html?searchHighlight=rng

[Souarv De]

What to do if I want non-repeatative sequence?