compose¶
- compose(G, H)[source]¶
Returns a new graph of G composed with H.
Composition is the simple union of the node sets and edge sets. The node sets of G and H do not need to be disjoint.
- Parameters
- G, Hgraph
A NetworkX graph
- Returns
- C: A new graph with the same type as G
Notes
It is recommended that G and H be either both directed or both undirected. Attributes from H take precedent over attributes from G.
For MultiGraphs, the edges are identified by incident nodes AND edge-key. This can cause surprises (i.e., edge
(1, 2)
may or may not be the same in two graphs) if you use MultiGraph without keeping track of edge keys.Examples
>>> G = nx.Graph([(0, 1), (0, 2)]) >>> H = nx.Graph([(0, 1), (1, 2)]) >>> R = nx.compose(G, H) >>> R.nodes NodeView((0, 1, 2)) >>> R.edges EdgeView([(0, 1), (0, 2), (1, 2)])