is_regular

is_regular(G)

Determines whether the graph G is a regular graph.

A regular graph is a graph where each vertex has the same degree. A regular digraph is a graph where the indegree and outdegree of each vertex are equal.

Parameters:

GNetworkX graph

Returns:

bool

Whether the given graph or digraph is regular.

Examples

>>> G = nx.DiGraph([(1, 2), (2, 3), (3, 4), (4, 1)])
>>> nx.is_regular(G)
True