com.rapidminer.example.set
Class AttributeSelectionExampleSet

java.lang.Object
  com.rapidminer.operator.AbstractIOObject
      com.rapidminer.operator.ResultObjectAdapter
          com.rapidminer.example.set.AbstractExampleSet
              com.rapidminer.example.set.AttributeSelectionExampleSet

All Implemented Interfaces:

ExampleSet, IOObject, ResultObject, Saveable, LoggingHandler, java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<Example>

public class AttributeSelectionExampleSet
extends AbstractExampleSet

An implementation of ExampleSet that is only a fixed view on a selection of attributes of the parent example set.

Author:

Ingo Mierswa

See Also:

Serialized Form

Constructor Summary

AttributeSelectionExampleSet(AttributeSelectionExampleSet exampleSet)
Clone constructor.

AttributeSelectionExampleSet(ExampleSet exampleSet, boolean[] selectionMask)
Constructs a new AttributeSelectionExampleSet.

Method Summary

boolean	equals(java.lang.Object o) Returns true, if all attributes including labels and other special attributes are equal.
Attributes	getAttributes() Returns the attribute container.
Example	getExample(int index) Returns the i-th example.
ExampleTable	getExampleTable() Returns the underlying example table.
int	hashCode() Returns the hash code of all attributes.
java.util.Iterator<Example>	iterator() Creates a new example set reader.
int	size() Returns the number of examples in this example set.

Methods inherited from class com.rapidminer.example.set.AbstractExampleSet

clone, copy, createDataTable, getActions, getExampleFromId, getExampleIndicesFromId, getExtension, getFileDescription, getName, getResultIcon, getStatistics, getStatistics, getVisualizationComponent, getVisualizationComponent, recalculateAllAttributeStatistics, recalculateAttributeStatistics, remapIds, toString, writeAttributeFile, writeDataFile, writeSparseAttributeFile, writeSparseDataFile

Methods inherited from class com.rapidminer.operator.ResultObjectAdapter

addAction, isSavable, log, logError, logNote, logWarning, save, toHTML, toResultString

Methods inherited from class com.rapidminer.operator.AbstractIOObject

getLog, getSource, initWriting, read, setLoggingHandler, setSource, write

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.rapidminer.operator.ResultObject

toResultString

Methods inherited from interface com.rapidminer.operator.IOObject

getLog, getSource, setLoggingHandler, setSource, write

Constructor Detail

AttributeSelectionExampleSet

public AttributeSelectionExampleSet(ExampleSet exampleSet,
                                    boolean[] selectionMask)

Constructs a new AttributeSelectionExampleSet. Only those attributes with a true value in the selection mask will be used. If the given mask is null, all regular attributes of the parent example set will be used.

AttributeSelectionExampleSet

public AttributeSelectionExampleSet(AttributeSelectionExampleSet exampleSet)

Clone constructor.

Method Detail

equals

public boolean equals(java.lang.Object o)

Description copied from class: AbstractExampleSet

Returns true, if all attributes including labels and other special attributes are equal.

Specified by:

equals in interface ExampleSet

Overrides:

equals in class AbstractExampleSet

hashCode

public int hashCode()

Description copied from class: AbstractExampleSet

Returns the hash code of all attributes.

Specified by:

hashCode in interface ExampleSet

Overrides:

hashCode in class AbstractExampleSet

getAttributes

public Attributes getAttributes()

Returns the attribute container.

iterator

public java.util.Iterator<Example> iterator()

Creates a new example set reader.

getExample

public Example getExample(int index)

Description copied from interface: ExampleSet

Returns the i-th example. It is not guaranteed that asking for an example by using the index in the example table is efficiently implemented. Therefore for-loops for iterations are not an option and an ExampleReader should be used.

getExampleTable

public ExampleTable getExampleTable()

Description copied from interface: ExampleSet

Returns the underlying example table. Most operators should operate on the example set and manipulate example to change table data instead of using the table directly.

size

public int size()

Description copied from interface: ExampleSet

Returns the number of examples in this example set. This number should not be used to create for-loops to iterate through all examples.