Graph.laplacian_matrix

Graph.laplacian_matrix(normalize=False, rtype='array')

Creates a Laplacian matrix from a Graph datastructure.

Parameters:

normalizebool, optional

If True, normalize the entries such that the value on the diagonal is 1.

rtypeLiteral[‘array’, ‘csc’, ‘csr’, ‘coo’, ‘list’], optional

Format of the result.

Returns:

array_like

Constructed Laplacian matrix.

Notes

d = L.dot(xyz) is currently a vector that points from the centroid to the node. Therefore c = xyz - d. By changing the signs in the laplacian, the dsiplacement vectors could be used in a more natural way c = xyz + d.