make.L {Grace}

Graph Laplacian Matrix Builder

Description

This function builds the graph Laplacian matrix from an adjacency matrix.

Usage

  make.L(adj,normalize.Laplacian=FALSE)

Arguments

adj

adjacency matrix of the graph.

normalize.Laplacian

whether the graph Laplacian matrix should be normalized to make all diagonal entries equal to 1. Grace test with the normalized Laplacian matrix is more powerful in identifying hub-covariates.

Value

A matrix object of the graph Laplacian matrix.

Author(s)

Sen Zhao