only change part of GUI table

Hi

Say I have a 1400x10 matrix and have already written it into a GUI table. Now, I would like to change an entire row. The method I am using right now is

M(i,:) = newrow;

set(handles.uitable_excel, 'data', M);

In this method, I have to rewrite the whole matrix into a GUI table again and it is kind of slow. Is there another simple way to do it? Thank you very much!