Class Normalize
java.lang.Object
weka.filters.Filter
weka.filters.unsupervised.instance.Normalize
- All Implemented Interfaces:
Serializable
,CapabilitiesHandler
,OptionHandler
,RevisionHandler
,UnsupervisedFilter
An instance filter that normalize instances considering only numeric attributes and ignoring class index.
Valid options are:
-N <num> Specify the norm that each instance must have (default 1.0)
-L <num> Specify L-norm to use (default 2.0)
- Version:
- $Revision: 5548 $
- Author:
- Julien Prados
- See Also:
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionReturns the Capabilities of this filter.double
getLNorm()
Get the L Norm used.double
getNorm()
Get the instance's Norm.String[]
Gets the current settings of the filter.Returns the revision string.Returns a string describing this filterboolean
Input an instance for filtering.Returns an enumeration describing the available options.Returns the tip text for this propertystatic void
Main method for testing this class.Returns the tip text for this propertyboolean
setInputFormat
(Instances instanceInfo) Sets the format of the input instances.void
setLNorm
(double newLNorm) Set the L-norm to usedvoid
setNorm
(double newNorm) Set the norm of the instancesvoid
setOptions
(String[] options) Parses a given list of options.Methods inherited from class weka.filters.Filter
batchFilterFile, batchFinished, filterFile, getCapabilities, getOutputFormat, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, numPendingOutput, output, outputPeek, toString, useFilter, wekaStaticWrapper
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Constructor Details
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Normalize
public Normalize()
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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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LNormTipText
Returns the tip text for this property- Returns:
- tip text for this property suitable for displaying in the explorer/experimenter gui
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normTipText
Returns the tip text for this property- Returns:
- tip text for this property suitable for displaying in the explorer/experimenter gui
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listOptions
Returns an enumeration describing the available options.- Specified by:
listOptions
in interfaceOptionHandler
- Returns:
- an enumeration of all the available options.
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setOptions
Parses a given list of options. Valid options are:-N <num> Specify the norm that each instance must have (default 1.0)
-L <num> Specify L-norm to use (default 2.0)
- Specified by:
setOptions
in interfaceOptionHandler
- 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:
getOptions
in interfaceOptionHandler
- Returns:
- an array of strings suitable for passing to setOptions
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getNorm
public double getNorm()Get the instance's Norm.- Returns:
- the Norm
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setNorm
public void setNorm(double newNorm) Set the norm of the instances- Parameters:
newNorm
- the norm to wich the instances must be set
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getLNorm
public double getLNorm()Get the L Norm used.- Returns:
- the L-norm used
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setLNorm
public void setLNorm(double newLNorm) Set the L-norm to used- Parameters:
newLNorm
- the L-norm
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getCapabilities
Returns the Capabilities of this filter.- Specified by:
getCapabilities
in interfaceCapabilitiesHandler
- Overrides:
getCapabilities
in classFilter
- Returns:
- the capabilities of this object
- See Also:
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setInputFormat
Sets the format of the input instances.- Overrides:
setInputFormat
in 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 format cannot be processed
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input
Input an instance for filtering. Ordinarily the instance is processed and made available for output immediately. Some filters require all instances be read before producing output.- Overrides:
input
in 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 defined.Exception
- if the input instance was not of the correct format or if there was a problem with the filtering.
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getRevision
Returns the revision string.- Specified by:
getRevision
in interfaceRevisionHandler
- Overrides:
getRevision
in 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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