Warning
This documents an unmaintained version of NetworkX. Please upgrade to a maintained version and see the current NetworkX documentation.
bfs_tree¶
-
bfs_tree
(G, source, reverse=False)[source]¶ Return an oriented tree constructed from of a breadth-first-search starting at source.
Parameters: - G (NetworkX graph) –
- source (node) – Specify starting node for breadth-first search and return edges in the component reachable from source.
- reverse (bool, optional) – If True traverse a directed graph in the reverse direction
Returns: T – An oriented tree
Return type: NetworkX DiGraph
Examples
>>> G = nx.Graph() >>> G.add_path([0,1,2]) >>> print(list(nx.bfs_edges(G,0))) [(0, 1), (1, 2)]
Notes
Based on http://www.ics.uci.edu/~eppstein/PADS/BFS.py by D. Eppstein, July 2004.