Section: Inspection Functions
iscellstr
is
x = iscellstr(y)
and it returns a logical 1 if the argument is a cell array in which every cell is a character array (or is empty), and a logical 0 otherwise.
--> A = {'Hello','Yellow';'Mellow','Othello'} A = [Hello] [Yellow] [Mellow] [Othello] --> iscellstr(A) ans = 1