Package weka.classifiers.trees.adtree
Class ReferenceInstances
- java.lang.Object
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- weka.core.Instances
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- weka.classifiers.trees.adtree.ReferenceInstances
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- All Implemented Interfaces:
java.io.Serializable
,RevisionHandler
public class ReferenceInstances extends Instances
Simple class that extends the Instances class making it possible to create subsets of instances that reference their source set. Is used by ADTree to make reweighting of instances easy to manage.- Version:
- $Revision: 1.5 $
- Author:
- Richard Kirkby (rkirkby@cs.waikato.ac.nz)
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class weka.core.Instances
ARFF_DATA, ARFF_RELATION, FILE_EXTENSION, SERIALIZED_OBJ_FILE_EXTENSION
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Constructor Summary
Constructors Constructor Description ReferenceInstances(Instances dataset, int capacity)
Creates an empty set of instances.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addReference(Instance instance)
Adds one instance reference to the end of the set.java.lang.String
getRevision()
Returns the revision string.-
Methods inherited from class weka.core.Instances
add, attribute, attribute, attributeStats, attributeToDoubleArray, checkForAttributeType, checkForStringAttributes, checkInstance, classAttribute, classIndex, compactify, delete, delete, deleteAttributeAt, deleteAttributeType, deleteStringAttributes, deleteWithMissing, deleteWithMissing, deleteWithMissingClass, enumerateAttributes, enumerateInstances, equalHeaders, firstInstance, getRandomNumberGenerator, insertAttributeAt, instance, kthSmallestValue, kthSmallestValue, lastInstance, main, meanOrMode, meanOrMode, mergeInstances, numAttributes, numClasses, numDistinctValues, numDistinctValues, numInstances, randomize, readInstance, relationName, renameAttribute, renameAttribute, renameAttributeValue, renameAttributeValue, resample, resampleWithWeights, resampleWithWeights, resampleWithWeights, resampleWithWeights, setClass, setClassIndex, setRelationName, sort, sort, stratify, stringFreeStructure, sumOfWeights, swap, test, testCV, toString, toSummaryString, trainCV, trainCV, variance, variance
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Constructor Detail
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ReferenceInstances
public ReferenceInstances(Instances dataset, int capacity)
Creates an empty set of instances.- Parameters:
dataset
- the instances to get the header information fromcapacity
- the initial storage capacity of the set
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Method Detail
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addReference
public final void addReference(Instance instance)
Adds one instance reference to the end of the set. Does not copy instance before it is added. Increases the size of the dataset if it is not large enough. Does not check if the instance is compatible with the dataset.- Parameters:
instance
- the instance to be added
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getRevision
public java.lang.String getRevision()
Returns the revision string.- Specified by:
getRevision
in interfaceRevisionHandler
- Overrides:
getRevision
in classInstances
- Returns:
- the revision
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