Note

This documents the development version of NetworkX. Documentation for the current release can be found here.

networkx.linalg.spectrum.laplacian_spectrum

laplacian_spectrum(G, weight='weight')[source]

Returns eigenvalues of the Laplacian of G

Parameters
Ggraph

A NetworkX graph

weightstring 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
evalsNumPy array

Eigenvalues

See also

laplacian_matrix

Notes

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