Leading Eigenvalues and eigenvectors

Hello, i am trying to use matlab to compute the leading left and right eigenvectors of a network. I create the adjacency matrix in my c++ code and pass it to matlab. The matrix will be symmetric, thus what i do is:

[V, D, W] = eig(Am,'nobalance');
[maxValue, index] = max(diag(D));
RightLeadEigVec = V(:,index);
LeftLeadEigVec = W(index,:);

Is this the right way to get the leading right and left eigenvectors respectively

many thanks,

Pavlos