com.rapidminer.tools
Class WekaInstancesAdaptor

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<weka.core.Instance>
          weka.core.Instances
              com.rapidminer.tools.WekaInstancesAdaptor

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<weka.core.Instance>, java.util.Collection<weka.core.Instance>, java.util.List<weka.core.Instance>, weka.core.RevisionHandler

public class WekaInstancesAdaptor
extends weka.core.Instances

This class extends the Weka class Instances and overrides all methods needed to directly use a RapidMiner ExampleSet as source for Weka instead of copying the complete data.

Author:

Ingo Mierswa ingomierswa Exp $

See Also:

Serialized Form

Field Summary

static int	ASSOCIATION_RULE_MINING
static int	CLUSTERING
static int	LEARNING
static int	PREDICTING
static int	WEIGHTING

Fields inherited from class weka.core.Instances

ARFF_DATA, ARFF_RELATION, FILE_EXTENSION, m_Attributes, m_ClassIndex, m_Instances, m_Lines, m_RelationName, SERIALIZED_OBJ_FILE_EXTENSION

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

WekaInstancesAdaptor(java.lang.String name, ExampleSet exampleSet, int taskType)
Creates a new Instances object based on the given example set.

Method Summary

java.util.Enumeration	enumerateInstances() Returns an instance enumeration based on an ExampleReader.
weka.core.Instance	instance(int i) Returns the i-th instance.
int	numInstances() Returns the number of instances.
protected java.lang.Object	readResolve()

Methods inherited from class weka.core.Instances

add, add, attribute, attribute, attributeStats, attributeToDoubleArray, checkForAttributeType, checkForStringAttributes, checkInstance, classAttribute, classIndex, compactify, copyInstances, delete, delete, deleteAttributeAt, deleteAttributeType, deleteStringAttributes, deleteWithMissing, deleteWithMissing, deleteWithMissingClass, enumerateAttributes, equalHeaders, equalHeadersMsg, firstInstance, freshAttributeInfo, get, getRandomNumberGenerator, getRevision, initialize, insertAttributeAt, instancesAndWeights, kthSmallestValue, kthSmallestValue, lastInstance, main, meanOrMode, meanOrMode, mergeInstances, numAttributes, numClasses, numDistinctValues, numDistinctValues, partition, quickSort, randomize, readInstance, relationName, remove, renameAttribute, renameAttribute, renameAttributeValue, renameAttributeValue, resample, resampleWithWeights, resampleWithWeights, select, set, setClass, setClassIndex, setRelationName, size, sort, sort, stratify, stratStep, stringFreeStructure, stringWithoutHeader, sumOfWeights, swap, test, testCV, toString, toSummaryString, trainCV, trainCV, variance, variance

Methods inherited from class java.util.AbstractList

addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, removeRange, subList

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.List

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Field Detail

LEARNING

public static final int LEARNING

See Also:

Constant Field Values

PREDICTING

public static final int PREDICTING

See Also:

Constant Field Values

CLUSTERING

public static final int CLUSTERING

See Also:

Constant Field Values

ASSOCIATION_RULE_MINING

public static final int ASSOCIATION_RULE_MINING

See Also:

Constant Field Values

WEIGHTING

public static final int WEIGHTING

See Also:

Constant Field Values

Constructor Detail

WekaInstancesAdaptor

public WekaInstancesAdaptor(java.lang.String name,
                            ExampleSet exampleSet,
                            int taskType)
                     throws OperatorException

Creates a new Instances object based on the given example set.

Throws:

OperatorException

Method Detail

readResolve

protected java.lang.Object readResolve()

enumerateInstances

public java.util.Enumeration enumerateInstances()

Returns an instance enumeration based on an ExampleReader.

Overrides:

enumerateInstances in class weka.core.Instances

instance

public weka.core.Instance instance(int i)

Returns the i-th instance.

Overrides:

instance in class weka.core.Instances

numInstances

public int numInstances()

Returns the number of instances.

Overrides:

numInstances in class weka.core.Instances