de.lmu.ifi.dbs.elki.evaluation.roc

Class ROC.DistanceResultAdapter<D extends Distance<D>>

java.lang.Object

de.lmu.ifi.dbs.elki.evaluation.roc.ROC.DistanceResultAdapter<D>

Type Parameters:

D - Distance type

All Implemented Interfaces:

DBIDRef, ROC.ScoreIter, Iter

Enclosing class:

ROC

public static class ROC.DistanceResultAdapter<D extends Distance<D>>
extends Object
implements ROC.ScoreIter, DBIDRef

This adapter can be used for an arbitrary collection of Integers, and uses that id1.compareTo(id2) != 0 for id1 != id2 to satisfy the comparability. Note that of course, no id should occur more than once. The ROC values would be incorrect then anyway!

Field Summary

Fields

Modifier and Type	Field and Description
private DistanceDBIDListIter<D>	iter Original Iterator
private D	prevDist Distance of previous.

Constructor Summary

Constructors

Constructor and Description
ROC.DistanceResultAdapter(DistanceDBIDListIter<D> iter) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
void	advance() Moves the iterator forward to the next entry.
boolean	equals(Object obj) Deprecated.
int	hashCode() Deprecated.
int	internalGetIndex() Get the internal index.
boolean	tiedToPrevious() Test whether the score is the same as the previous objects score.
boolean	valid() Returns true if the iterator currently points to a valid object.

Methods inherited from class java.lang.Object

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

Field Detail

iter

private DistanceDBIDListIter<D extends Distance<D>> iter

Original Iterator

prevDist

private D extends Distance<D> prevDist

Distance of previous.

Constructor Detail

ROC.DistanceResultAdapter

public ROC.DistanceResultAdapter(DistanceDBIDListIter<D> iter)

Constructor

Parameters:

iter - Iterator for distance results

Method Detail

valid

public boolean valid()

Description copied from interface: Iter

Returns true if the iterator currently points to a valid object.

Specified by:

valid in interface Iter

Returns:

a boolean value, whether the position is valid.

advance

public void advance()

Description copied from interface: Iter

Moves the iterator forward to the next entry.

Specified by:

advance in interface Iter

internalGetIndex

public int internalGetIndex()

Description copied from interface: DBIDRef

Get the internal index. NOT FOR PUBLIC USE - ELKI Optimization engine only

Specified by:

internalGetIndex in interface DBIDRef

Returns:

Internal index

tiedToPrevious

public boolean tiedToPrevious()

Description copied from interface: ROC.ScoreIter

Test whether the score is the same as the previous objects score. When there is no previous result, implementations should return false!

Specified by:

tiedToPrevious in interface ROC.ScoreIter

Returns:

Boolean

hashCode

@Deprecated
public int hashCode()

Deprecated.

Description copied from interface: DBIDRef

WARNING: Hash codes of this interface might not be stable (e.g. for iterators). Use DBIDUtil.deref(de.lmu.ifi.dbs.elki.database.ids.DBIDRef) to get an object with a stable hash code!

Specified by:

hashCode in interface DBIDRef

Overrides:

hashCode in class Object

Returns:

current hash code (may change!)

equals

@Deprecated
public boolean equals(Object obj)

Deprecated.

Description copied from interface: DBIDRef

WARNING: calling equality on a reference may be an indicator of incorrect usage, as it is not clear whether the programmer meant the references to be the same or the DBIDs. Use DBIDUtil.equal(de.lmu.ifi.dbs.elki.database.ids.DBIDRef, de.lmu.ifi.dbs.elki.database.ids.DBIDRef) or DBIDUtil.compare(de.lmu.ifi.dbs.elki.database.ids.DBIDRef, de.lmu.ifi.dbs.elki.database.ids.DBIDRef)!

Specified by:

equals in interface DBIDRef

Overrides:

equals in class Object

Parameters:

obj - Object to compare with

Returns:

True when they are the same object