Warning

This documents an unmaintained version of NetworkX. Please upgrade to a maintained version and see the current NetworkX documentation.

dfs_tree

dfs_tree(G, source)

Return oriented tree constructed from a depth-first-search from source.

Parameters :

G : NetworkX graph

source : node, optional

Specify starting node for depth-first search.

Returns :

T : NetworkX DiGraph

An oriented tree

Examples

>>> G = nx.Graph()
>>> G.add_path([0,1,2])
>>> T = nx.dfs_tree(G,0)
>>> print(T.edges())
[(0, 1), (1, 2)]