MATLAB: Addition of two matrix’s with constraints

genetic algorithmrandom number generator

Hello,
i have following code which i want to modify ….
 function new_fitness 
 W =[0 0 0 3;0 0 0 0;0 0 0 0; 3 0 0 0 ];
 cost=[1 1 1 1;1 1 1 1;1 1 1 1;1 1 1 1];
 FC= [10 10 10 10;10 10 10 10;10 10 10 10;10 10 10 10];
 Fn = cost.*W+(W>0).*FC
 disp(Fn);
 end
my output is—
 Fn =
     0     0     0    13
     0     0     0     0
     0     0     0     0
    13     0     0     0
but i want to modify it such a way that particular FC element is added only once if both W(i,j) and W(j,i)>0. then my output will be like—
 Fn =
     0     0     0    13
     0     0     0     0
     0     0     0     0
     3     0     0     0
Thank You

Best Answer

out = W.*cost;
[ii,jj] = find(W > 0);
ij = sortrows([ii,jj]);
jj = sub2ind(size(W),ij(1,1),ij(1,2));
out(jj) = out(jj) + FC(jj);
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