org.gephi.statistics.plugin

Class EigenvectorCentrality

java.lang.Object

org.gephi.statistics.plugin.EigenvectorCentrality

All Implemented Interfaces:

Statistics, LongTask

public class EigenvectorCentrality
extends Object
implements Statistics, LongTask

Author:

pjmcswee

Field Summary

Fields

Modifier and Type	Field and Description
private double[]	centralities
static String	EIGENVECTOR
private boolean	isCanceled
private boolean	isDirected
private int	numRuns
private ProgressTicket	progress
private double	sumChange

Constructor Summary

Constructors

Constructor and Description
EigenvectorCentrality()

Method Summary

Modifier and Type	Method and Description
double	calculateEigenvectorCentrality(org.gephi.graph.api.Graph hgraph, double[] eigCentralities, HashMap<Integer,org.gephi.graph.api.Node> indicies, HashMap<org.gephi.graph.api.Node,Integer> invIndicies, boolean directed, int numIterations)
boolean	cancel() Cancel the task.
private double	computeMaxValueAndTempValues(org.gephi.graph.api.Graph hgraph, HashMap<Integer,org.gephi.graph.api.Node> indicies, HashMap<org.gephi.graph.api.Node,Integer> invIndicies, double[] tempValues, double[] centralityValues, boolean directed)
void	execute(org.gephi.graph.api.Graph hgraph)
void	execute(org.gephi.graph.api.GraphModel graphModel) Executes the statistics algorithm.
void	fillIndiciesMaps(org.gephi.graph.api.Graph hgraph, double[] eigCentralities, HashMap<Integer,org.gephi.graph.api.Node> indicies, HashMap<org.gephi.graph.api.Node,Integer> invIndicies)
int	getNumRuns()
String	getReport() Returns an HTML string that displays the statistics result.
private org.gephi.graph.api.Column	initializeAttributeColunms(org.gephi.graph.api.GraphModel graphModel)
boolean	isDirected()
private void	saveCalculatedValues(org.gephi.graph.api.Graph hgraph, org.gephi.graph.api.Column attributeColumn, HashMap<Integer,org.gephi.graph.api.Node> indicies, double[] eigCenrtalities)
void	setDirected(boolean isDirected)
void	setNumRuns(int numRuns)
void	setProgressTicket(ProgressTicket progressTicket) Set the progress ticket for the long task.
private double	updateValues(org.gephi.graph.api.Graph hgraph, double[] tempValues, double[] centralityValues, double max)

Methods inherited from class java.lang.Object

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

Field Detail

EIGENVECTOR

public static final String EIGENVECTOR

See Also:

Constant Field Values

numRuns

private int numRuns

centralities

private double[] centralities

sumChange

private double sumChange

progress

private ProgressTicket progress

isCanceled

private boolean isCanceled

isDirected

private boolean isDirected

Constructor Detail

EigenvectorCentrality

public EigenvectorCentrality()

Method Detail

setNumRuns

public void setNumRuns(int numRuns)

getNumRuns

public int getNumRuns()

Returns:

isDirected

public boolean isDirected()

Returns:

setDirected

public void setDirected(boolean isDirected)

Parameters:

isDirected -

execute

public void execute(org.gephi.graph.api.GraphModel graphModel)

Description copied from interface: Statistics

Executes the statistics algorithm.

It is preferable to work on visible graphs, to be synchronized with the visualization.

Specified by:

execute in interface Statistics

Parameters:

graphModel -

attributeModel -

execute

public void execute(org.gephi.graph.api.Graph hgraph)

initializeAttributeColunms

private org.gephi.graph.api.Column initializeAttributeColunms(org.gephi.graph.api.GraphModel graphModel)

saveCalculatedValues

private void saveCalculatedValues(org.gephi.graph.api.Graph hgraph,
                                  org.gephi.graph.api.Column attributeColumn,
                                  HashMap<Integer,org.gephi.graph.api.Node> indicies,
                                  double[] eigCenrtalities)

fillIndiciesMaps

public void fillIndiciesMaps(org.gephi.graph.api.Graph hgraph,
                             double[] eigCentralities,
                             HashMap<Integer,org.gephi.graph.api.Node> indicies,
                             HashMap<org.gephi.graph.api.Node,Integer> invIndicies)

computeMaxValueAndTempValues

private double computeMaxValueAndTempValues(org.gephi.graph.api.Graph hgraph,
                                            HashMap<Integer,org.gephi.graph.api.Node> indicies,
                                            HashMap<org.gephi.graph.api.Node,Integer> invIndicies,
                                            double[] tempValues,
                                            double[] centralityValues,
                                            boolean directed)

updateValues

private double updateValues(org.gephi.graph.api.Graph hgraph,
                            double[] tempValues,
                            double[] centralityValues,
                            double max)

calculateEigenvectorCentrality

public double calculateEigenvectorCentrality(org.gephi.graph.api.Graph hgraph,
                                             double[] eigCentralities,
                                             HashMap<Integer,org.gephi.graph.api.Node> indicies,
                                             HashMap<org.gephi.graph.api.Node,Integer> invIndicies,
                                             boolean directed,
                                             int numIterations)

getReport

public String getReport()

Description copied from interface: Statistics

Returns an HTML string that displays the statistics result. Can contains complex HTML snippets and images.

Specified by:

getReport in interface Statistics

Returns:

cancel

public boolean cancel()

Description copied from interface: LongTask

Cancel the task. Returns true if the task has been sucessfully cancelled, false otherwise.

Specified by:

cancel in interface LongTask

Returns:

true if the task has been sucessfully cancelled, false otherwise

setProgressTicket

public void setProgressTicket(ProgressTicket progressTicket)

Description copied from interface: LongTask

Set the progress ticket for the long task. Can't be null.

Specified by:

setProgressTicket in interface LongTask

Parameters:

progressTicket - the progress ticket for this task