MATLAB: How to take the value of the array

Question

I have Wj1 =

    [3x12 double]    [3x48 double]    [3x192 double]
I want to have a matrix [3x252], I make A=[Wj1{1},Wj1{2},Wj1{3}] but i can't make with Wj1(i)
How I can create a matrix A=[Wj1{1},Wj1{2},...,Wj1{i},...,Wj1{n}]
Thanks a lot

Answer 1

A = [Wj1{:}];

Or equivalently:

A = cat(2, Wj1{:})