How can I turn a matrix into character text in MATLAB?

The matrix has the numbers 1-26 as the corresponding letters A-Z and 27 is a space. Is there anyway I can use MATLAB to make this conversion?

Answer 1

[M]

Have a look here https://fr.mathworks.com/matlabcentral/answers/71504-convert-an-array-of-numbers-into-letters-1-a-2-b-3-c-etc

Answer 2

[Guillaume]

One way:

lettervalues = randi(27, 1, 50)
actualletters = char(lettervalues + 'A' - 1);
actualletters(lettervalues == 27) = ' '

Another way:

lettervalues = randi(27, 1, 50)
lookuptable = ['A':'Z', ' '];
actualletters = lookuptable(lettervalues);