Max - use randperm to generate a random index into your character array. Try the following
alphabet = 'abcdefghijklmnopqrstuvwxyz';
randIdx = randperm(length(alphabet),1); % generate the random index into array
randChar = alphabet(randIdx); % get the random character
alphabet(randIdx) = []; % remove the character
For example, if
randIdx =
14
then
randChar =
n
and
alphabet =
abcdefghijklmopqrstuvwxyz
with the 'n' removed.
