cell operation

There is a cell array. A = {'ab', 'bc', 'cd'};

I'd like to get a new cell array, like: B = {'ab', 'ab', 'ab', 'bc', 'bc', 'bc', 'cd', 'cd', 'cd'}.

How to get this without using loop?

Thanks

Answer 1

[Walter Roberson]

B = repmat(A, 3, 1);  %do the duplication
B = B(:).' ; turn the result in to a row vector

Answer 2

[Jan]

A = {'ab', 'bc', 'cd'};
B = A(kron(1:3, ones(1,3)));