MATLAB: Transforming a matrix to an array without one values??

logical indexingmatrix manipulation

Hi all
I have a matrix having some values equal to one. I want to transform this matrix to an array without the one values.
how can I do this? for example a=[13 1 4; 45 23 1; 1 56 78] changed to b=[13 45 23 56 4 78]
cheers,

Best Answer

a=[13 1 4; 45 23 1; 1 56 78];
indices = find(a==1);
a(indices) = [];