How to create discrete variable??

I have to create discrete matrix

A(:,:,k) = [a b c d e f g h i j k l m n o p];

for k= 1:N

i want to allocate a b c... from matrix [0 10 20 30 40] only. How can i allocate randomly a b c...

please help me

Answer 1

[Guillaume]

I'm not entirely clear on what you're asking. This may do what you want:

valuepool = [0 10 20 30 40];
N = 2;
randidx = randi(numel(valuepool), [16 16 N]);
A = valuepool(randidx)

[Triveni]

Sorry .....very sorry