Define v0ts to be the direction where the first nonzero element is positive. This should prevent non-deterministic direction choice of this eigenvector which makes it difficult to run independent forward and reverse IRCs (as in some cases the reverse and forward IRCs pick different v0ts's causing them to be the same IRC branch).
Define v0ts to be the direction where the first nonzero element is positive. This should prevent non-deterministic direction choice of this eigenvector which makes it difficult to run independent forward and reverse IRCs (as in some cases the reverse and forward IRCs pick different v0ts's causing them to be the same IRC branch).