Package adams.flow.transformer.indexedsplitsrunsgenerator

Class InstancesCrossValidationFoldGenerator

java.lang.Object

adams.core.logging.LoggingObject

adams.core.logging.CustomLoggingLevelObject

adams.core.option.AbstractOptionHandler

adams.flow.transformer.indexedsplitsrunsgenerator.AbstractIndexedSplitsRunsGenerator

adams.flow.transformer.indexedsplitsrunsgenerator.AbstractInstancesIndexedSplitsRunsGenerator

adams.flow.transformer.indexedsplitsrunsgenerator.InstancesCrossValidationFoldGenerator

All Implemented Interfaces:

Destroyable, GlobalInfoSupporter, LoggingLevelHandler, LoggingSupporter, OptionHandler, OptionalRandomizable, QuickInfoSupporter, Randomizable, SizeOfHandler, FlowContextHandler, IndexedSplitsRunsGenerator, InstancesIndexedSplitsRunsGenerator, Serializable

public class InstancesCrossValidationFoldGenerator
extends AbstractInstancesIndexedSplitsRunsGenerator
implements OptionalRandomizable

Split generator that generates folds for cross-validation for Instances objects.

Author:

FracPete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected int	m_NumFolds	the number of folds.
protected boolean	m_Randomize	whether to randomize the data.
protected long	m_Seed	the seed value.
protected boolean	m_Stratify	whether to stratify the data (in case of nominal class).

Fields inherited from class adams.flow.transformer.indexedsplitsrunsgenerator.AbstractInstancesIndexedSplitsRunsGenerator

m_AddAttributeInformation, m_AddDatasetInformation

Fields inherited from class adams.flow.transformer.indexedsplitsrunsgenerator.AbstractIndexedSplitsRunsGenerator

m_FlowContext, m_MetaData

Fields inherited from class adams.core.option.AbstractOptionHandler

m_OptionManager

Fields inherited from class adams.core.logging.LoggingObject

m_Logger, m_LoggingIsEnabled, m_LoggingLevel

Fields inherited from interface adams.flow.transformer.indexedsplitsrunsgenerator.InstancesIndexedSplitsRunsGenerator

DATASET_NAME, DATASET_NUMATTRIBUTES, DATASET_NUMINSTANCES, PREFIX_DATASET_ATTRIBUTE, SUFFIX_NAME, SUFFIX_TYPE

Constructor Summary

Constructors

Constructor	Description
InstancesCrossValidationFoldGenerator()

Method Summary

Modifier and Type	Method	Description
protected String	check(Object data)	Checks whether the data can be processed.
void	defineOptions()	Adds options to the internal list of options.
protected IndexedSplitsRuns	doGenerate(Object data, MessageCollection errors)	Generates the indexed splits.
int	getNumFolds()	Returns the number of folds.
String	getQuickInfo()	Returns a quick info about the object, which can be displayed in the GUI.
boolean	getRandomize()	Returns whether to randomize the data.
long	getSeed()	Returns the seed value.
boolean	getStratify()	Returns whether to stratify the data (in case of nominal class).
String	globalInfo()	Returns a string describing the object.
String	numFoldsTipText()	Returns the tip text for this property.
String	randomizeTipText()	Returns the tip text for this property.
String	seedTipText()	Returns the tip text for this property.
void	setNumFolds(int value)	Sets the number of folds to use.
void	setRandomize(boolean value)	Sets whether to randomize the data.
void	setSeed(long value)	Sets the seed value.
void	setStratify(boolean value)	Sets whether to stratify the data (nominal class).
String	stratifyTipText()	Returns the tip text for this property.

Methods inherited from class adams.flow.transformer.indexedsplitsrunsgenerator.AbstractInstancesIndexedSplitsRunsGenerator

accepts, addAttributeInformationTipText, addDatasetInformationTipText, getAddAttributeInformation, getAddDatasetInformation, postGenerate, setAddAttributeInformation, setAddDatasetInformation

Methods inherited from class adams.flow.transformer.indexedsplitsrunsgenerator.AbstractIndexedSplitsRunsGenerator

generate, getFlowContext, getMetaData, metaDataTipText, setFlowContext, setMetaData

Methods inherited from class adams.core.option.AbstractOptionHandler

cleanUpOptions, destroy, finishInit, getDefaultLoggingLevel, getOptionManager, initialize, loggingLevelTipText, newOptionManager, reset, setLoggingLevel, toCommandLine, toString

Methods inherited from class adams.core.logging.LoggingObject

configureLogger, getLogger, getLoggingLevel, initializeLogging, isLoggingEnabled, sizeOf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface adams.core.Destroyable

destroy

Methods inherited from interface adams.flow.core.FlowContextHandler

getFlowContext, setFlowContext

Methods inherited from interface adams.flow.transformer.indexedsplitsrunsgenerator.IndexedSplitsRunsGenerator

generate

Methods inherited from interface adams.core.logging.LoggingLevelHandler

getLoggingLevel

Methods inherited from interface adams.core.option.OptionHandler

cleanUpOptions, getOptionManager, toCommandLine

Field Detail

m_NumFolds

protected int m_NumFolds

the number of folds.

m_Randomize

protected boolean m_Randomize

whether to randomize the data.

m_Seed

protected long m_Seed

the seed value.

m_Stratify

protected boolean m_Stratify

whether to stratify the data (in case of nominal class).

Constructor Detail

InstancesCrossValidationFoldGenerator

public InstancesCrossValidationFoldGenerator()

Method Detail

globalInfo

public String globalInfo()

Returns a string describing the object.

Specified by:

globalInfo in interface GlobalInfoSupporter

Specified by:

globalInfo in class AbstractOptionHandler

Returns:

a description suitable for displaying in the gui

defineOptions

public void defineOptions()

Adds options to the internal list of options.

Specified by:

defineOptions in interface OptionHandler

Overrides:

defineOptions in class AbstractInstancesIndexedSplitsRunsGenerator

setNumFolds

public void setNumFolds(int value)

Sets the number of folds to use.

Parameters:

value - the number of folds, less than 2 for LOO

getNumFolds

public int getNumFolds()

Returns the number of folds.

Returns:

the number of folds

numFoldsTipText

public String numFoldsTipText()

Returns the tip text for this property.

Returns:

tip text for this property suitable for displaying in the GUI or for listing the options.

setRandomize

public void setRandomize(boolean value)

Sets whether to randomize the data.

Specified by:

setRandomize in interface OptionalRandomizable

Parameters:

value - true if to randomize the data

getRandomize

public boolean getRandomize()

Returns whether to randomize the data.

Specified by:

getRandomize in interface OptionalRandomizable

Returns:

true if to randomize the data

randomizeTipText

public String randomizeTipText()

Returns the tip text for this property.

Specified by:

randomizeTipText in interface OptionalRandomizable

Returns:

tip text for this property suitable for displaying in the GUI or for listing the options.

setSeed

public void setSeed(long value)

Sets the seed value.

Specified by:

setSeed in interface Randomizable

Parameters:

value - the seed

getSeed

public long getSeed()

Returns the seed value.

Specified by:

getSeed in interface Randomizable

Returns:

the seed

seedTipText

public String seedTipText()

Returns the tip text for this property.

Specified by:

seedTipText in interface Randomizable

Returns:

tip text for this property suitable for displaying in the GUI or for listing the options.

setStratify

public void setStratify(boolean value)

Sets whether to stratify the data (nominal class).

Parameters:

value - whether to stratify the data (nominal class)

getStratify

public boolean getStratify()

Returns whether to stratify the data (in case of nominal class).

Returns:

true if to stratify

stratifyTipText

public String stratifyTipText()

Returns the tip text for this property.

Returns:

tip text for this property suitable for displaying in the GUI or for listing the options.

getQuickInfo

public String getQuickInfo()

Returns a quick info about the object, which can be displayed in the GUI.

Specified by:

getQuickInfo in interface QuickInfoSupporter

Overrides:

getQuickInfo in class AbstractInstancesIndexedSplitsRunsGenerator

Returns:

null if no info available, otherwise short string

check

protected String check(Object data)

Checks whether the data can be processed.

Overrides:

check in class AbstractIndexedSplitsRunsGenerator

Parameters:

data - the data to check

Returns:

null if checks passed, otherwise error message

doGenerate

protected IndexedSplitsRuns doGenerate(Object data,
                                       MessageCollection errors)

Generates the indexed splits.

Specified by:

doGenerate in class AbstractIndexedSplitsRunsGenerator

Parameters:

data - the data to use for generating the splits

errors - for storing any errors occurring during processing

Returns:

the splits or null in case of error