getZeroArcs: Selects zero weight arcs of a graph

In optrees: Optimal Trees in Weighted Graphs

Description

Given a directed graph, getZeroArcs returns the list of arcs with zero weight. Removes other arcs by assign them infinite value.

Usage

getZeroArcs(nodes, arcs)

Arguments

nodes	vector containing the nodes of the graph, identified by a number that goes from 1 to the order of the graph.
arcs	matrix with the list of arcs of the graph. Each row represents one arc. The first two columns contain the two endpoints of each arc and the third column contains their weights.

Value

The getZeroArcs function returns a matrix with the list of zero weight arcs of the graph.

See Also

This function is an auxiliar function used in msArborEdmonds and getMinimumArborescence.

optrees documentation built on May 2, 2019, 8:15 a.m.