Fig. 1From: A program to compute the soft Robinson–Foulds distance between phylogenetic networksA network N and its tree components. There are nine tree components in N. Five of these components are non-trivial: C r, C r1, C r2, C r5, and C r6, where C r6={r4}. C r7 and r7 are right below C r5, C r2, and C r. C r is visible on all the leaves. C r1 and C r2 are visible, but neither of them is exposed. C r5 is exposed but not visibleBack to article page