weka.core
Class ClassRemoveableInstances

java.lang.Object
  weka.core.Instances
      weka.core.ClassRemoveableInstances

All Implemented Interfaces:

java.io.Serializable

public class ClassRemoveableInstances

extends Instances

Author:

Arthur Zimek

See Also:

Serialized Form

Field Summary

private boolean	classRemoved
private int	lastRemoved

Fields inherited from class weka.core.Instances

ARFF_DATA, ARFF_RELATION, FILE_EXTENSION, m_Attributes, m_ClassIndex, m_IndicesBuffer, m_Instances, m_RelationName, m_ValueBuffer

Constructor Summary

ClassRemoveableInstances(Instances dataset)

ClassRemoveableInstances(Instances dataset, int capacity)

ClassRemoveableInstances(Instances source, int first, int toCopy)

ClassRemoveableInstances(java.io.Reader reader)

ClassRemoveableInstances(java.io.Reader reader, int capacity)

ClassRemoveableInstances(java.lang.String name, FastVector attInfo, int capacity)

Method Summary

void	deleteAttributeAt(int position) Deletes an attribute at the given position (0 to numAttributes() - 1).
private void	freshAttributeInfo() Replaces the attribute information by a clone of itself.
void	insertAttributeAt(Attribute att, int position) Inserts an attribute at the given position (0 to numAttributes()) and sets all values to be missing.

Methods inherited from class weka.core.Instances

add, attribute, attribute, attributeStats, attributeToDoubleArray, checkForStringAttributes, checkInstance, classAttribute, classIndex, compactify, delete, delete, deleteStringAttributes, deleteWithMissing, deleteWithMissing, deleteWithMissingClass, enumerateAttributes, enumerateInstances, equalHeaders, firstInstance, getInstance, getInstanceFull, getInstanceSparse, getRandomNumberGenerator, instance, lastInstance, main, meanOrMode, meanOrMode, mergeInstances, numAttributes, numClasses, numDistinctValues, numDistinctValues, numInstances, randomize, readHeader, readInstance, relationName, renameAttribute, renameAttribute, renameAttributeValue, renameAttributeValue, resample, resampleWithWeights, resampleWithWeights, setClass, setClassIndex, setRelationName, sort, sort, stratify, stringFreeStructure, sumOfWeights, test, testCV, toString, toSummaryString, trainCV, trainCV, variance, variance

Methods inherited from class java.lang.Object

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

Field Detail

lastRemoved

private int lastRemoved

classRemoved

private boolean classRemoved

Constructor Detail

ClassRemoveableInstances

public ClassRemoveableInstances(java.io.Reader reader)
                         throws java.io.IOException

Parameters:

reader -

Throws:

java.io.IOException

ClassRemoveableInstances

public ClassRemoveableInstances(java.io.Reader reader,
                                int capacity)
                         throws java.io.IOException

Parameters:

reader -

capacity -

Throws:

java.io.IOException

ClassRemoveableInstances

public ClassRemoveableInstances(Instances dataset)

Parameters:

dataset -

ClassRemoveableInstances

public ClassRemoveableInstances(Instances dataset,
                                int capacity)

Parameters:

dataset -

capacity -

ClassRemoveableInstances

public ClassRemoveableInstances(Instances source,
                                int first,
                                int toCopy)

Parameters:

source -

first -

toCopy -

ClassRemoveableInstances

public ClassRemoveableInstances(java.lang.String name,
                                FastVector attInfo,
                                int capacity)

Parameters:

name -

attInfo -

capacity -

Method Detail

deleteAttributeAt

public void deleteAttributeAt(int position)

Deletes an attribute at the given position (0 to numAttributes() - 1). A deep copy of the attribute information is performed before the attribute is deleted. Allows deletion of the class-attribute.

Overrides:

deleteAttributeAt in class Instances

Parameters:

position - the attribute's position

Throws:

java.lang.IllegalArgumentException - if the given index is out of range

insertAttributeAt

public void insertAttributeAt(Attribute att,
                              int position)

Inserts an attribute at the given position (0 to numAttributes()) and sets all values to be missing. Shallow copies the attribute before it is inserted, and performs a deep copy of the existing attribute information.

Overrides:

insertAttributeAt in class Instances

Parameters:

att - the attribute to be inserted

position - the attribute's position

Throws:

java.lang.IllegalArgumentException - if the given index is out of range

freshAttributeInfo

private void freshAttributeInfo()

Replaces the attribute information by a clone of itself.