Figure 1From: Computing the skewness of the phylogenetic mean pairwise distance in linear timeRepresenting triples of paths as graphs. (a) A phylogenetic tree and (b) an example of the tripartite graph induced by the triplet of its tip pairs {α,γ},{δ,γ},{ε,δ}, where {α,γ,δ,ε}⊂S. The dashed lines in the graph distinguish the partite subsets of vertices; the vertices of each partite subset correspond to tips of the same pair.Back to article page