legend in matlab

mathia

Hi,
I have this plots:

Plot(A(1:200,1),A(1:200,2),'r');
Plot(A(201:end,1),A(201:end,2),'r');

Plot(A(1:120,1),A(1:120,3));
Plot(A(121:end,1),A(121:end,3),'b');

Plot(A(1:,1),A(:,3),'k');

I want to have a legend for my plots so i used h=legend('D1', 'D2', 'D3');
but legend is for my first, second and third (red, red, blue) plots while i want to have a legend for first third and fifth (red, blue and black) plots,
Can anyone help me?
Thank you..