edu.stanford.math.plex4.interop

Class Plex3PersistenceAlgorithm

java.lang.Object

edu.stanford.math.plex4.homology.interfaces.AbstractPersistenceAlgorithm<Simplex>

edu.stanford.math.plex4.interop.Plex3PersistenceAlgorithm

public class Plex3PersistenceAlgorithm
extends AbstractPersistenceAlgorithm<Simplex>

This class encapsulates the functionality of the original version of javaPlex. It implements the AbstractPersistenceAlgorithm interface for easy interoperability and testing. Essentially, it computes the persistent homology of a plex 4 stream using the plex 3 algorithm.

Author:

Andrew Tausz

Constructor Summary

Constructors

Constructor and Description
Plex3PersistenceAlgorithm(int maxDimension) This constructor initializes the class with the maximum dimension to compute persistence for.

Method Summary

Methods

Modifier and Type	Method and Description
BarcodeCollection<java.lang.Integer>	computeIndexIntervals(AbstractFilteredStream<Simplex> plex4Stream) This function computes the persistence index intervals of a filtered chain complex.

Methods inherited from class edu.stanford.math.plex4.homology.interfaces.AbstractPersistenceAlgorithm

computeIntervals

Methods inherited from class java.lang.Object

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

Constructor Detail

Plex3PersistenceAlgorithm

public Plex3PersistenceAlgorithm(int maxDimension)

This constructor initializes the class with the maximum dimension to compute persistence for.

Parameters:

maxDimension - the maximum dimension

Method Detail

computeIndexIntervals

public BarcodeCollection<java.lang.Integer> computeIndexIntervals(AbstractFilteredStream<Simplex> plex4Stream)

Description copied from class: AbstractPersistenceAlgorithm

This function computes the persistence index intervals of a filtered chain complex. In other words, it returns intervals corresponding to the internal filtration indices of the basis elements.

Specified by:

computeIndexIntervals in class AbstractPersistenceAlgorithm<Simplex>

Parameters:

plex4Stream - the filtered chain complex

Returns:

the persistence intervals of the given complex