A Compound Graph is an extension of a standard graph.
Let G be a graph, G=(V,E) where V is a set of vertices and E is a set of edges, that is e = (v1, v2) in V2
A compound graph C is defined by a tree T=(V,F) where V is the same set as G and F are tree edges f=(v1,v2) in V2. C=(G,T) where G=(V,E) and T=(V,F)
Furthermore, C has two additional constraints:
e=(v1,v2) in E implies:
1) v1 is not on the path of v2 to the root of T AND
2) v2 is not on the path of v1 to the root of T.
Intuitively, T defines a hierarchy. All the vertices sharing the same parent in T are in the same "group". The constraints state that you cannot have an edge connecting a vertex to one of its parent in the hierarchy.
Chat with our AI personalities
the five graph is line graph,bar graph,pictograph,pie graph and coin graph
bar graph,line graph and pie graph
A bar graph.
line graph
line graph :))))))))))))))