graphscope.nx.classes.function.is_weighted¶

graphscope.nx.classes.function.is_weighted(G, edge=None, weight='weight')[source]¶

Returns True if G has weighted edges.

Parameters:

G (graph) – A NetworkX graph.
edge (tuple, optional) – A 2-tuple specifying the only edge in G that will be tested. If None, then every edge in G is tested.
weight (string, optional) – The attribute name used to query for edge weights.

Returns:

A boolean signifying if G, or the specified edge, is weighted.

Return type:

bool

Raises:

NetworkXError – If the specified edge does not exist.

Examples

>>> G = nx.path_graph(4)
>>> nx.is_weighted(G)
False
>>> nx.is_weighted(G, (2, 3))
False

>>> G = nx.DiGraph()
>>> G.add_edge(1, 2, weight=1)
>>> nx.is_weighted(G)
True