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

networkx.linalg.spectrum.adjacency_spectrum

adjacency_spectrum(G, weight='weight')

Returns eigenvalues of the adjacency matrix of G.

Parameters

• G (graph) – A NetworkX graph

• weight (string or None, optional (default=’weight’)) – The edge data key used to compute each value in the matrix. If None, then each edge has weight 1.

Returns

evals – Eigenvalues

Return type

NumPy array

Notes

For MultiGraph/MultiDiGraph, the edges weights are summed. See to_numpy_matrix for other options.

See also

adjacency_matrix()