aima.core.learning.framework

Class DataSet

java.lang.Object

aima.core.learning.framework.DataSet

public class DataSet
extends java.lang.Object

Author:

Ravi Mohan

Field Summary

Fields

Modifier and Type	Field and Description
java.util.List<Example>	examples
DataSetSpecification	specification

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DataSet()
	DataSet(DataSetSpecification spec)

Method Summary

Modifier and Type	Method and Description
void	add(Example e)
double	calculateGainFor(java.lang.String parameterName)
DataSet	copy()
DataSet	emptyDataSet()
boolean	equals(java.lang.Object o)
java.util.List<java.lang.String>	getAttributeNames()
Example	getExample(int number)
double	getInformationFor()
java.util.List<java.lang.String>	getNonTargetAttributes()
java.util.List<java.lang.String>	getPossibleAttributeValues(java.lang.String attributeName)
java.lang.String	getTargetAttributeName()
int	hashCode()
java.util.Iterator<Example>	iterator()
DataSet	matchingDataSet(java.lang.String attributeName, java.lang.String attributeValue)
DataSet	removeExample(Example e)
void	setSpecification(DataSetSpecification specification)
int	size()
java.util.Hashtable<java.lang.String,DataSet>	splitByAttribute(java.lang.String attributeName)

Methods inherited from class java.lang.Object

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

Field Detail

examples

public java.util.List<Example> examples

specification

public DataSetSpecification specification

Constructor Detail

DataSet

protected DataSet()

DataSet

public DataSet(DataSetSpecification spec)

Method Detail

add

public void add(Example e)

size

public int size()

getExample

public Example getExample(int number)

removeExample

public DataSet removeExample(Example e)

getInformationFor

public double getInformationFor()

splitByAttribute

public java.util.Hashtable<java.lang.String,DataSet> splitByAttribute(java.lang.String attributeName)

calculateGainFor

public double calculateGainFor(java.lang.String parameterName)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

iterator

public java.util.Iterator<Example> iterator()

copy

public DataSet copy()

getAttributeNames

public java.util.List<java.lang.String> getAttributeNames()

getTargetAttributeName

public java.lang.String getTargetAttributeName()

emptyDataSet

public DataSet emptyDataSet()

setSpecification

public void setSpecification(DataSetSpecification specification)

Parameters:

specification - The specification to set. USE SPARINGLY for testing etc .. makes no semantic sense

getPossibleAttributeValues

public java.util.List<java.lang.String> getPossibleAttributeValues(java.lang.String attributeName)

matchingDataSet

public DataSet matchingDataSet(java.lang.String attributeName,
                               java.lang.String attributeValue)

getNonTargetAttributes

public java.util.List<java.lang.String> getNonTargetAttributes()