edu.uci.ics.jung.algorithms.metrics

Class Metrics

java.lang.Object

edu.uci.ics.jung.algorithms.metrics.Metrics

public class Metrics
extends java.lang.Object

A class consisting of static methods for calculating graph metrics.

Constructor Summary

Constructors

Constructor and Description
Metrics()

Method Summary

Modifier and Type	Method and Description
static <V,E> java.util.Map<V,java.lang.Double>	clusteringCoefficients(Graph<V,E> graph) Returns a Map of vertices to their clustering coefficients.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Metrics

public Metrics()

Method Detail

clusteringCoefficients

public static <V,E> java.util.Map<V,java.lang.Double> clusteringCoefficients(Graph<V,E> graph)

Returns a Map of vertices to their clustering coefficients. The clustering coefficient cc(v) of a vertex v is defined as follows:

• degree(v) == {0,1}: 0
• degree(v) == n, n >= 2: given S, the set of neighbors of v: cc(v) = (the sum over all w in S of the number of other elements of w that are neighbors of w) / ((|S| * (|S| - 1) / 2). Less formally, the fraction of v's neighbors that are also neighbors of each other.

Note: This algorithm treats its argument as an undirected graph; edge direction is ignored.

Type Parameters:

V - the vertex type

E - the edge type

Parameters:

graph - the graph whose clustering coefficients are to be calculated

Returns:

the clustering coefficient for each vertex

See Also:

"The structure and function of complex networks, M.E.J. Newman, aps.arxiv.org/abs/cond-mat/0303516"