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networkx.generators.random_graphs.random_lobster

random_lobster(n, p1, p2, seed=None)

Returns a random lobster graph.

A lobster is a tree that reduces to a caterpillar when pruning all leaf nodes. A caterpillar is a tree that reduces to a path graph when pruning all leaf nodes; setting p2 to zero produces a caterpillar.

Parameters:

• n (int) – The expected number of nodes in the backbone
• p1 (float) – Probability of adding an edge to the backbone
• p2 (float) – Probability of adding an edge one level beyond backbone
• seed (int, optional) – Seed for random number generator (default=None).