is_kernel: Check if a matrix is a valid kernel

In b2slab/diffusion: Diffusion scores on biological networks

Description

This function checks whether the eigenvalues are non-negative

Usage

is_kernel(x, tol = 1e-08)

Arguments

x	numeric, symmetric matrix to be checked
tol	numeric, tolerance for zero eigenvalues

Value

scores in desired format

Examples

data(graph_toy)
K <- regularisedLaplacianKernel(graph_toy)
is_kernel(K)
is_kernel(K - 1)

b2slab/diffusion documentation built on March 6, 2021, 2:38 a.m.