weka.etplugin

Class DataInstances

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<Instance>

weka.core.Instances

weka.etplugin.DataInstances

All Implemented Interfaces:

Serializable, Iterable<Instance>, Collection<Instance>, List<Instance>, RevisionHandler

public class DataInstances
extends Instances

Class for handling a set of instances (of the type DataInstance) with information of evaluation of classification processes. This class handles the update of the tooltips of the contained instances when the class attribute is changed.

Author:

Antonio Pastor

See Also:

EntropyTrianglePanel, Serialized Form

Field Summary

Fields inherited from class weka.core.Instances

ARFF_DATA, ARFF_RELATION, FILE_EXTENSION, SERIALIZED_OBJ_FILE_EXTENSION

Constructor Summary

Constructors

Constructor and Description
DataInstances(Instances dataset) Constructor copying all instances and references to the header information from the given set of instances.
DataInstances(Instances dataset, int capacity) Constructor creating an empty set of instances.
DataInstances(String name, ArrayList<Attribute> attInfo) Creates an empty set of instances.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(Instance instance) Adds one instance to the end of the set.
boolean	remove(Object o)
void	setClass(Attribute att)
void	setClassIndex(int classIndex)

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, equalHeadersMsg, firstInstance, get, getRandomNumberGenerator, getRevision, insertAttributeAt, instance, kthSmallestValue, kthSmallestValue, lastInstance, main, meanOrMode, meanOrMode, mergeInstances, numAttributes, numClasses, numDistinctValues, numDistinctValues, numInstances, randomize, readInstance, relationName, remove, renameAttribute, renameAttribute, renameAttributeValue, renameAttributeValue, replaceAttributeAt, resample, resampleWithWeights, resampleWithWeights, resampleWithWeights, resampleWithWeights, resampleWithWeights, resampleWithWeights, resampleWithWeights, set, setRelationName, size, sort, sort, stableSort, stableSort, stratify, stringFreeStructure, sumOfWeights, swap, test, testCV, toString, toSummaryString, trainCV, trainCV, variance, variance, variances

Methods inherited from class java.util.AbstractList

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

Methods inherited from class java.util.AbstractCollection

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

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

Constructor Detail

DataInstances

public DataInstances(Instances dataset)

Constructor copying all instances and references to the header information from the given set of instances.

Parameters:

dataset - the set to be copied

DataInstances

public DataInstances(Instances dataset,
             int capacity)

Constructor creating an empty set of instances. Copies references to the header information from the given set of instances. Sets the capacity of the set of instances to 0 if its negative.

Parameters:

dataset - the instances from which the header information is to be taken

capacity - the initial capacity of the new dataset

DataInstances

public DataInstances(String name,
             ArrayList<Attribute> attInfo)

Creates an empty set of instances. Uses the given attribute information. Sets the capacity of the set of instances to 0 if its negative. Given attribute information must not be changed after this constructor has been used.

Parameters:

name - the name of the relation

attInfo - the attribute information

Method Detail

setClass

public void setClass(Attribute att)

Overrides:

setClass in class Instances

setClassIndex

public void setClassIndex(int classIndex)

Overrides:

setClassIndex in class Instances

add

public boolean add(Instance instance)

Adds one instance to the end of the set. Shallow copies 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. Note: String or relational values are not transferred.

Specified by:

add in interface Collection<Instance>

Specified by:

add in interface List<Instance>

Overrides:

add in class Instances

Parameters:

instance - the instance to be added

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<Instance>

Specified by:

remove in interface List<Instance>

Overrides:

remove in class AbstractCollection<Instance>