README.md

Effective Resistance

Repository for calculating effective resistance

from Network import *

Import network file into Network class.

The Network file either takes two numpy arrays, an edge list (2 x m) and a list of edge weights (1 x m), or a networkx graph object. For the edge list and list of edge weights, the network is imported as

from Network import *

E_list = edgelist
weights = edgeweights
network = Network(E_list, weights)

For a networkx object, the graph is imported as

G = networkx_graph
network = Network(None, None, G)

Approximate Effective Resistance

To approximate the effective resistance, use the Network class specific command:

network = Network(E_list, weights)
epsilon=0.1
method='kts'
Effective_R = network.effR(epsilon, method)

Arguments

• epsilon Signifies the amount of relative error in the effective resistance approximation.
• method Specifies the method of approximation to be used - 'ext' is the exact calculation of effective resistance, 'spl' the original Spielman-Srivastva algorithm, and 'kts' as the Koutis et al. implementation.