networkx.random_shell_graph

random_shell_graph(constructor, seed=None)

Return a random shell graph for the constructor given.

• constructor: a list of three-tuples [(n1,m1,d1),(n2,m2,d2),..] one for each shell, starting at the center shell.

• n : the number of nodes in the shell

• m : the number or edges in the shell

• d : the ratio of inter (next) shell edges to intra shell edges.

  d=0 means no intra shell edges. d=1 for the last shell

• seed: seed for random number generator (default=None)

>>> constructor=[(10,20,0.8),(20,40,0.8)]
>>> G=nx.random_shell_graph(constructor)