color¶
- color(G)[source]¶
Returns a two-coloring of the graph.
Raises an exception if the graph is not bipartite.
- Parameters
- GNetworkX graph
- Returns
- colordictionary
A dictionary keyed by node with a 1 or 0 as data for each node color.
- Raises
- NetworkXError
If the graph is not two-colorable.
Examples
>>> from networkx.algorithms import bipartite >>> G = nx.path_graph(4) >>> c = bipartite.color(G) >>> print(c) {0: 1, 1: 0, 2: 1, 3: 0}
You can use this to set a node attribute indicating the biparite set:
>>> nx.set_node_attributes(G, c, "bipartite") >>> print(G.nodes[0]["bipartite"]) 1 >>> print(G.nodes[1]["bipartite"]) 0