networkx.drawing.layout.spectral_layout¶
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spectral_layout
(G, weight='weight', scale=1, center=None, dim=2)[source]¶ Position nodes using the eigenvectors of the graph Laplacian.
Parameters: - G (NetworkX graph or list of nodes) – A position will be assigned to every node in G.
- weight (string or None optional (default=’weight’)) – The edge attribute that holds the numerical value used for the edge weight. If None, then all edge weights are 1.
- scale (number (default: 1)) – Scale factor for positions.
- center (array-like or None) – Coordinate pair around which to center the layout.
- dim (int) – Dimension of layout.
Returns: pos – A dictionary of positions keyed by node
Return type: Examples
>>> G = nx.path_graph(4) >>> pos = nx.spectral_layout(G)
Notes
Directed graphs will be considered as undirected graphs when positioning the nodes.
For larger graphs (>500 nodes) this will use the SciPy sparse eigenvalue solver (ARPACK).