org.dmilne.weka.wrapper

Class Dataset<A extends Enum<A>,C>

java.lang.Object

weka.core.Instances

org.dmilne.weka.wrapper.Dataset<A,C>

Type Parameters:

A - An enumeration of attributes (features) used to inform the decider

C - The class attribute type (this must either be Double, Boolean, or some kind of enum)

All Implemented Interfaces:

Serializable, weka.core.RevisionHandler

public class Dataset<A extends Enum<A>,C>
extends weka.core.Instances

A data set for training or testing a decider.

You cannot construct data sets directly. Instead use Decider.createNewDataset().

See Also:

Serialized Form

Field Summary

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

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Dataset(Decider<A,C> decider)

Method Summary

Methods

Modifier and Type	Method and Description
InstanceBuilder<A,C>	getInstanceBuilder() Returns a builder for constructing an instance for this data set.
void	load(File file) Loads this data set from an ARFF file
void	save(File file) Saves this data set to file, in ARFF format.

Methods inherited from class weka.core.Instances

add, attribute, attribute, attributeStats, attributeToDoubleArray, checkForAttributeType, checkForStringAttributes, checkInstance, classAttribute, classIndex, compactify, copyInstances, delete, delete, deleteAttributeAt, deleteAttributeType, deleteStringAttributes, deleteWithMissing, deleteWithMissing, deleteWithMissingClass, enumerateAttributes, enumerateInstances, equalHeaders, firstInstance, freshAttributeInfo, getRandomNumberGenerator, getRevision, initialize, insertAttributeAt, instance, instancesAndWeights, kthSmallestValue, kthSmallestValue, lastInstance, main, meanOrMode, meanOrMode, mergeInstances, numAttributes, numClasses, numDistinctValues, numDistinctValues, numInstances, partition, quickSort, randomize, readInstance, relationName, renameAttribute, renameAttribute, renameAttributeValue, renameAttributeValue, resample, resampleWithWeights, resampleWithWeights, select, setClass, setClassIndex, setRelationName, sort, sort, stratify, stratStep, stringFreeStructure, stringWithoutHeader, sumOfWeights, swap, 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

Constructor Detail

Dataset

protected Dataset(Decider<A,C> decider)

Method Detail

save

public void save(File file)
          throws Exception

Saves this data set to file, in ARFF format.

Parameters:

file - a writable file

Throws:

Exception - if the file is not writable, or if there is no data to save

load

public void load(File file)
          throws Exception

Loads this data set from an ARFF file

Parameters:

file - the readable ARFF file

Throws:

Exception - if the file is not readable, or does not describe the expected attributes

getInstanceBuilder

public InstanceBuilder<A,C> getInstanceBuilder()

Returns a builder for constructing an instance for this data set.

Returns:

a builder for constructing an instance for this data set.