Class MergeTwoValues
java.lang.Object
weka.filters.Filter
weka.filters.unsupervised.attribute.MergeTwoValues
- All Implemented Interfaces:
Serializable,CapabilitiesHandler,CapabilitiesIgnorer,CommandlineRunnable,OptionHandler,RevisionHandler,WeightedAttributesHandler,WeightedInstancesHandler,StreamableFilter,UnsupervisedFilter
public class MergeTwoValues
extends Filter
implements UnsupervisedFilter, StreamableFilter, OptionHandler, WeightedAttributesHandler, WeightedInstancesHandler
Merges two values of a nominal attribute into one
value.
Valid options are:
-C <col> Sets the attribute index (default last).
-F <value index> Sets the first value's index (default first).
-S <value index> Sets the second value's index (default last).
- Version:
- $Revision: 14534 $
- Author:
- Eibe Frank (eibe@cs.waikato.ac.nz)
- See Also:
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionGet the index of the attribute used.Returns the Capabilities of this filter.Get the index of the first value used.String[]Gets the current settings of the filter.Returns the revision string.Get the index of the second value used.Returns a string describing this filterbooleanInput an instance for filtering.Returns an enumeration describing the available options.static voidMain method for testing this class.voidsetAttributeIndex(String attIndex) Sets index of the attribute used.voidsetFirstValueIndex(String firstIndex) Sets index of the first value used.booleansetInputFormat(Instances instanceInfo) Sets the format of the input instances.voidsetOptions(String[] options) Parses a given list of options.voidsetSecondValueIndex(String secondIndex) Sets index of the second value used.Methods inherited from class weka.filters.Filter
batchFilterFile, batchFinished, debugTipText, doNotCheckCapabilitiesTipText, filterFile, getCapabilities, getCopyOfInputFormat, getDebug, getDoNotCheckCapabilities, getOutputFormat, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, mayRemoveInstanceAfterFirstBatchDone, numPendingOutput, output, outputPeek, postExecution, preExecution, run, runFilter, setDebug, setDoNotCheckCapabilities, toString, useFilter, wekaStaticWrapper
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Constructor Details
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MergeTwoValues
public MergeTwoValues()
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Method Details
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globalInfo
Returns a string describing this filter- Returns:
- a description of the filter suitable for displaying in the explorer/experimenter gui
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getCapabilities
Returns the Capabilities of this filter.- Specified by:
getCapabilitiesin interfaceCapabilitiesHandler- Overrides:
getCapabilitiesin classFilter- Returns:
- the capabilities of this object
- See Also:
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setInputFormat
Sets the format of the input instances.- Overrides:
setInputFormatin classFilter- Parameters:
instanceInfo- an Instances object containing the input instance structure (any instances contained in the object are ignored - only the structure is required).- Returns:
- true if the outputFormat may be collected immediately
- Throws:
Exception- if the input format can't be set successfully
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input
Input an instance for filtering. The instance is processed and made available for output immediately.- Overrides:
inputin classFilter- Parameters:
instance- the input instance- Returns:
- true if the filtered instance may now be collected with output().
- Throws:
IllegalStateException- if no input format has been set.
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listOptions
Returns an enumeration describing the available options.- Specified by:
listOptionsin interfaceOptionHandler- Overrides:
listOptionsin classFilter- Returns:
- an enumeration of all the available options.
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setOptions
Parses a given list of options. Valid options are:-C <col> Sets the attribute index (default last).
-F <value index> Sets the first value's index (default first).
-S <value index> Sets the second value's index (default last).
- Specified by:
setOptionsin interfaceOptionHandler- Overrides:
setOptionsin classFilter- Parameters:
options- the list of options as an array of strings- Throws:
Exception- if an option is not supported
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getOptions
Gets the current settings of the filter.- Specified by:
getOptionsin interfaceOptionHandler- Overrides:
getOptionsin classFilter- Returns:
- an array of strings suitable for passing to setOptions
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attributeIndexTipText
- Returns:
- tip text for this property suitable for displaying in the explorer/experimenter gui
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getAttributeIndex
Get the index of the attribute used.- Returns:
- the index of the attribute
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setAttributeIndex
Sets index of the attribute used.- Parameters:
attIndex- the index of the attribute
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firstValueIndexTipText
- Returns:
- tip text for this property suitable for displaying in the explorer/experimenter gui
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getFirstValueIndex
Get the index of the first value used.- Returns:
- the index of the first value
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setFirstValueIndex
Sets index of the first value used.- Parameters:
firstIndex- the index of the first value
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secondValueIndexTipText
- Returns:
- tip text for this property suitable for displaying in the explorer/experimenter gui
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getSecondValueIndex
Get the index of the second value used.- Returns:
- the index of the second value
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setSecondValueIndex
Sets index of the second value used.- Parameters:
secondIndex- the index of the second value
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getRevision
Returns the revision string.- Specified by:
getRevisionin interfaceRevisionHandler- Overrides:
getRevisionin classFilter- Returns:
- the revision
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main
Main method for testing this class.- Parameters:
argv- should contain arguments to the filter: use -h for help
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