Package si.ijs.kt.clus.selection

Class BagSelection

java.lang.Object

si.ijs.kt.clus.selection.ClusSelection

si.ijs.kt.clus.selection.BagSelection

Direct Known Subclasses:

BagSelectionSemiSupervised

public class BagSelection
extends ClusSelection

Field Summary

Fields

Modifier and Type	Field	Description
protected int[]	m_Counts
protected int	m_NbSel

Fields inherited from class si.ijs.kt.clus.selection.ClusSelection

m_NbRows

Constructor Summary

Constructors

Constructor	Description
BagSelection(int nbrows)	Creates a new bag selection of size nbrows from a total of nbrows instances.
BagSelection(int nbrows, int nbselected, ClusRandomNonstatic rnd)	Create a new bag of size nbselected from a total of nbrows instances.

Method Summary

Modifier and Type	Method	Description
boolean	changesDistribution()
final int	getCount(int row)
int	getNbSelected()
double	getWeight(int row)
boolean	isSelected(int row)

Methods inherited from class si.ijs.kt.clus.selection.ClusSelection

getIndex, getNbRows, supportsReplacement

Methods inherited from class java.lang.Object

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

Field Details

m_Counts

protected int[] m_Counts

m_NbSel

protected int m_NbSel

Constructor Details

BagSelection

public BagSelection(int nbrows)

Creates a new bag selection of size nbrows from a total of nbrows instances. This constructor does NOT take in to account the BagSize setting users can set in the settings file. If you want to take this in to account, you should use BagSelection(nbrows, getSettings().getEnsembleBagSize()) instead.

Parameters:

nbrows - the number of instances

BagSelection

public BagSelection(int nbrows,
 int nbselected,
 ClusRandomNonstatic rnd)

Create a new bag of size nbselected from a total of nbrows instances. If nbselected == 0, a bag of size nbrows is created.

Parameters:

nbrows - the total number of instances

nbselected - the size of the bagging selection

rnd - random generator object that is used for creating the bag. May be null. In that case, ClusRandom is used instead, which might result in non-reproducibility if the number of cores is greater than one.

Method Details

changesDistribution

public boolean changesDistribution()

Overrides:

changesDistribution in class ClusSelection

getWeight

public double getWeight(int row)

Overrides:

getWeight in class ClusSelection

getNbSelected

public int getNbSelected()

Specified by:

getNbSelected in class ClusSelection

isSelected

public boolean isSelected(int row)

Specified by:

isSelected in class ClusSelection

getCount

public final int getCount(int row)