MATLAB: Problem for creating vector with for loop

Question

   a={'w','c','e'};

%I wanna create 2 times of w,c,e, with using for loop, like this

 aa={'w','w','c','c','e','e'};

Answer 1

a={'w','c','e'};
nRep = 5;
your_mat = reshape(repmat(a,nRep,1),1,[]);