is_isolate#
- is_isolate(G, n)[source]#
Determines whether a node is an isolate.
An isolate is a node with no neighbors (that is, with degree zero). For directed graphs, this means no in-neighbors and no out-neighbors.
- Parameters:
- GNetworkX graph
- nnode
A node in
G.
- Returns:
- is_isolatebool
True if and only if
nhas no neighbors.
Examples
>>> G = nx.Graph() >>> G.add_edge(1, 2) >>> G.add_node(3) >>> nx.is_isolate(G, 2) False >>> nx.is_isolate(G, 3) True