Package weka.filters.unsupervised.instance

Class RemoveDuplicates

java.lang.Object

weka.filters.Filter

weka.filters.SimpleFilter

weka.filters.SimpleBatchFilter

weka.filters.unsupervised.instance.RemoveDuplicates

All Implemented Interfaces:

Serializable, CapabilitiesHandler, CapabilitiesIgnorer, CommandlineRunnable, OptionHandler, RevisionHandler, WeightedAttributesHandler, WeightedInstancesHandler

public class RemoveDuplicates
extends SimpleBatchFilter
implements WeightedAttributesHandler, WeightedInstancesHandler

Removes all duplicate instances from the first batch of data it receives. Simply returns copies of other batches.

Valid options are:

 -D
  Turns on output of debugging information.

Version:

$Revision: 9804 $

Author:

Eibe Frank (eibe@cs.waikato.ac.nz)

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
RemoveDuplicates()

Method Summary

Modifier and Type	Method	Description
Capabilities	getCapabilities()	Returns the Capabilities of this filter.
String	getRevision()	Returns the revision string.
String	globalInfo()	Returns a string describing this filter.
boolean	input(Instance instance)	Input an instance for filtering.
static void	main(String[] args)	Main method for running this filter.

Methods inherited from class weka.filters.SimpleBatchFilter

allowAccessToFullInputFormat, batchFinished, input

Methods inherited from class weka.filters.SimpleFilter

setInputFormat

Methods inherited from class weka.filters.Filter

batchFilterFile, debugTipText, doNotCheckCapabilitiesTipText, filterFile, getCapabilities, getCopyOfInputFormat, getDebug, getDoNotCheckCapabilities, getOptions, getOutputFormat, isFirstBatchDone, isNewBatch, isOutputFormatDefined, listOptions, makeCopies, makeCopy, mayRemoveInstanceAfterFirstBatchDone, numPendingOutput, output, outputPeek, postExecution, preExecution, run, runFilter, setDebug, setDoNotCheckCapabilities, setOptions, toString, useFilter, wekaStaticWrapper

Methods inherited from class java.lang.Object

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

Constructor Details

RemoveDuplicates

public RemoveDuplicates()

Method Details

globalInfo

public String globalInfo()

Returns a string describing this filter.

Specified by:

globalInfo in class SimpleFilter

Returns:

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

input

public boolean input(Instance instance)
              throws Exception

Input an instance for filtering. Filter requires all training instances be read before producing output (calling the method batchFinished() makes the data available). If this instance is part of a new batch, m_NewBatch is set to false.

Overrides:

input in class SimpleBatchFilter

Parameters:

instance - the input instance

Returns:

true if the filtered instance may now be collected with output().

Throws:

IllegalStateException - if no input structure has been defined

Exception - if something goes wrong

See Also:

• SimpleBatchFilter.batchFinished()

getCapabilities

public Capabilities getCapabilities()

Returns the Capabilities of this filter.

Specified by:

getCapabilities in interface CapabilitiesHandler

Overrides:

getCapabilities in class Filter

Returns:

the capabilities of this object

See Also:

• Capabilities

getRevision

public String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Overrides:

getRevision in class Filter

Returns:

the revision

main

public static void main(String[] args)

Main method for running this filter.

Parameters:

args - arguments for the filter: use -h for help