MATLAB: Selecting random part of string

strings cell arrays

say I have
alphabet='abcdefghijklmnopqrstuvwxyz'
how do i select a random letter from the alphabet so Guess= random letter from alphabet and once I have selected a random letter from the alphabet, then remove that letter from the alphabet.
Thank you

Best Answer

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.
Related Question