Package weka.core.converters

Class C45Saver

java.lang.Object

weka.core.converters.AbstractSaver

weka.core.converters.AbstractFileSaver

weka.core.converters.C45Saver

All Implemented Interfaces:

Serializable, CapabilitiesHandler, CapabilitiesIgnorer, BatchConverter, FileSourcedConverter, IncrementalConverter, Saver, EnvironmentHandler, OptionHandler, RevisionHandler

public class C45Saver
extends AbstractFileSaver
implements BatchConverter, IncrementalConverter, OptionHandler

Writes to a destination that is in the format used by the C4.5 algorithm.
Therefore it outputs a names and a data file.

Valid options are:

 -i <the input file>
 The input file
 

 -o <the output file>
 The output file
 

 -c <the class index>
 The class index
 

Version:

$Revision: 10203 $

Author:

Stefan Mutter (mutter@cs.waikato.ac.nz)

See Also:

• Saver
• Serialized Form

Field Summary

Fields inherited from interface weka.core.converters.Saver

BATCH, INCREMENTAL, NONE

Constructor Summary

Constructors

Constructor	Description
C45Saver()	Constructor

Method Summary

Modifier and Type	Method	Description
Capabilities	getCapabilities()	Returns the Capabilities of this saver.
String	getFileDescription()	Returns a description of the file type.
String[]	getOptions()	Gets the current settings of the C45Saver object.
String	getRevision()	Returns the revision string.
String	globalInfo()	Returns a string describing this Saver
Enumeration<Option>	listOptions()	Returns an enumeration describing the available options.
static void	main(String[] args)	Main method.
void	resetOptions()	Resets the Saver
void	setOptions(String[] options)	Parses a given list of options.
void	writeBatch()	Writes a Batch of instances
void	writeIncremental(Instance inst)	Saves an instances incrementally.

Methods inherited from class weka.core.converters.AbstractFileSaver

cancel, filePrefix, getFileExtension, getFileExtensions, getUseRelativePath, getWriter, resetWriter, retrieveDir, retrieveFile, runFileSaver, setDestination, setDestination, setDir, setDirAndPrefix, setEnvironment, setFile, setFilePrefix, setUseRelativePath, useRelativePathTipText

Methods inherited from class weka.core.converters.AbstractSaver

doNotCheckCapabilitiesTipText, getDoNotCheckCapabilities, getInstances, getWriteMode, resetStructure, setDoNotCheckCapabilities, setInstances, setRetrieval, setStructure

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

C45Saver

public C45Saver()

Constructor

Method Details

globalInfo

public String globalInfo()

Returns a string describing this Saver

Returns:

a description of the Saver suitable for displaying in the explorer/experimenter gui

getFileDescription

public String getFileDescription()

Returns a description of the file type.

Specified by:

getFileDescription in interface FileSourcedConverter

Specified by:

getFileDescription in class AbstractFileSaver

Returns:

a short file description

resetOptions

public void resetOptions()

Resets the Saver

Overrides:

resetOptions in class AbstractFileSaver

getCapabilities

public Capabilities getCapabilities()

Returns the Capabilities of this saver.

Specified by:

getCapabilities in interface CapabilitiesHandler

Overrides:

getCapabilities in class AbstractSaver

Returns:

the capabilities of this object

See Also:

• Capabilities

writeIncremental

public void writeIncremental(Instance inst)
                      throws IOException

Saves an instances incrementally. Structure has to be set by using the setStructure() method or setInstances() method.

Specified by:

writeIncremental in interface Saver

Overrides:

writeIncremental in class AbstractSaver

Parameters:

inst - the instance to save

Throws:

IOException - throws IOEXception if an instance cannot be saved incrementally.

writeBatch

public void writeBatch()
                throws IOException

Writes a Batch of instances

Specified by:

writeBatch in interface Saver

Specified by:

writeBatch in class AbstractSaver

Throws:

IOException - throws IOException if saving in batch mode is not possible

listOptions

public Enumeration<Option> listOptions()

Returns an enumeration describing the available options.

Specified by:

listOptions in interface OptionHandler

Overrides:

listOptions in class AbstractFileSaver

Returns:

an enumeration of all the available options.

setOptions

public void setOptions(String[] options)
                throws Exception

Parses a given list of options.

Valid options are:

 -i <the input file>
 The input file
 

 -o <the output file>
 The output file
 

 -c <the class index>
 The class index
 

Specified by:

setOptions in interface OptionHandler

Overrides:

setOptions in class AbstractFileSaver

Parameters:

options - the list of options as an array of strings

Throws:

Exception - if an option is not supported

getOptions

public String[] getOptions()

Gets the current settings of the C45Saver object.

Specified by:

getOptions in interface OptionHandler

Overrides:

getOptions in class AbstractFileSaver

Returns:

an array of strings suitable for passing to setOptions

getRevision

public String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Returns:

the revision

main

public static void main(String[] args)

Main method.

Parameters:

args - should contain the options of a Saver.