# grinpy.functions.degree.number_of_degree_one_nodes¶

grinpy.functions.degree.number_of_degree_one_nodes(G)

Return the number of nodes of the graph with degree equal to 1.

A vertex with degree equal to 1 is also called a leaf.

Parameters: G (NetworkX graph) – An undirected graph. The number of nodes in the graph with degree equal to 1. int

Examples

>>> G = nx.path_graph(3) # Path on 3 nodes
>>> nx.number_of_leaves(G)
2