sami - if
A = [1 1 1
1 1 1
1 1 1
0 0 1
0 0 1
0 0 1];
and
V = [0;10;20;30;40;50;60;70;80;90;100;110;120];
then try
A(A>0) = V(2:end);
In the above, A>0 returns a logical matrix of ones and zeros where a one indicates that the element of A is greater than zero (as per our condition) and zero indicates that the element of A is less than or equal to zero. A(A>0) is then just those non-zero elements of A. We then assign all of the non-zero values of V (so from index two onwards) to those elements of A that are non-zero.
