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- random_lobster(n, p1, p2, seed=None)¶
Return a random lobster.
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 (p2=0).
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).