Class YGradientGLSW
- java.lang.Object
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- weka.filters.Filter
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- weka.filters.SimpleFilter
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- weka.filters.SimpleBatchFilter
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- weka.filters.supervised.attribute.YGradientGLSW
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- All Implemented Interfaces:
Serializable
,weka.core.CapabilitiesHandler
,weka.core.CapabilitiesIgnorer
,weka.core.CommandlineRunnable
,weka.core.OptionHandler
,weka.core.RevisionHandler
,weka.filters.SupervisedFilter
public class YGradientGLSW extends weka.filters.SimpleBatchFilter implements weka.filters.SupervisedFilter
Applies the Generalized Least Squares Weighting (GLSW) algorithm to the data.
For more information see:
http://wiki.eigenvector.com/index.php?title=Advanced_Preprocessing:_Multivariate_Filtering#Y-Gradient_GLSW
Valid options are:-alpha <value> The alpha parameter. Defines how strongly GLSW downweights interferences. Larger values (> 0.001) decreases the filtering effect. Smaller values (< 0.001) increase the filtering effect. (default: 0.001)
-output-debug-info If set, filter is run in debug mode and may output additional info to the console
-do-not-check-capabilities If set, filter capabilities are not checked before filter is built (use with caution).
- Author:
- FracPete (fracpete at waikato dot ac dot nz)
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description protected com.github.waikatodatamining.matrix.algorithm.glsw.YGradientGLSW
m_Algorithm
the GLSW algorithm.protected double
m_Alpha
Alpha parameter.
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Constructor Summary
Constructors Constructor Description YGradientGLSW()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description String
alphaTipText()
Returns the tip text for this propertyprotected weka.core.Instances
determineOutputFormat(weka.core.Instances inputFormat)
Determines the output format based on the input format and returns this.double
getAlpha()
Returns the alpha parameter.weka.core.Capabilities
getCapabilities()
Returns the Capabilities of this filter.protected double
getDefaultAlpha()
Returns the default algorithm.String[]
getOptions()
returns the options of the current setupString
getRevision()
Returns the revision string.String
globalInfo()
Returns a string describing this classifier.Enumeration<weka.core.Option>
listOptions()
Gets an enumeration describing the available options.static void
main(String[] args)
runs the filter with the given arguments.protected weka.core.Instances
process(weka.core.Instances instances)
Processes the given data (may change the provided dataset) and returns the modified version.void
setAlpha(double value)
Set the alpha parameter.void
setOptions(String[] options)
Parses the options for this object.-
Methods inherited from class weka.filters.SimpleBatchFilter
allowAccessToFullInputFormat, batchFinished, hasImmediateOutputFormat, input
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Methods inherited from class weka.filters.Filter
batchFilterFile, bufferInput, copyValues, copyValues, debugTipText, doNotCheckCapabilitiesTipText, filterFile, flushInput, getCapabilities, getDebug, getDoNotCheckCapabilities, getInputFormat, getOutputFormat, initInputLocators, initOutputLocators, inputFormatPeek, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, mayRemoveInstanceAfterFirstBatchDone, numPendingOutput, output, outputFormatPeek, outputPeek, postExecution, preExecution, push, push, resetQueue, run, runFilter, setDebug, setDoNotCheckCapabilities, setOutputFormat, testInputFormat, toString, useFilter, wekaStaticWrapper
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Method Detail
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globalInfo
public String globalInfo()
Returns a string describing this classifier.- Specified by:
globalInfo
in classweka.filters.SimpleFilter
- Returns:
- a description of the classifier suitable for displaying in the explorer/experimenter gui
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listOptions
public Enumeration<weka.core.Option> listOptions()
Gets an enumeration describing the available options.- Specified by:
listOptions
in interfaceweka.core.OptionHandler
- Overrides:
listOptions
in classweka.filters.Filter
- Returns:
- an enumeration of all the available options.
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getOptions
public String[] getOptions()
returns the options of the current setup- Specified by:
getOptions
in interfaceweka.core.OptionHandler
- Overrides:
getOptions
in classweka.filters.Filter
- Returns:
- the current options
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setOptions
public void setOptions(String[] options) throws Exception
Parses the options for this object.- Specified by:
setOptions
in interfaceweka.core.OptionHandler
- Overrides:
setOptions
in classweka.filters.Filter
- Parameters:
options
- the options to use- Throws:
Exception
- if the option setting fails
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getDefaultAlpha
protected double getDefaultAlpha()
Returns the default algorithm.- Returns:
- the default
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setAlpha
public void setAlpha(double value)
Set the alpha parameter. Defines how strongly GLSW downweights interferences. Larger values (> 0.001) decreases the filtering effect. Smaller values (< 0.001) increase the filtering effect.- Parameters:
value
- Alpha parameter
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getAlpha
public double getAlpha()
Returns the alpha parameter.- Returns:
- alpha
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alphaTipText
public String alphaTipText()
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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determineOutputFormat
protected weka.core.Instances determineOutputFormat(weka.core.Instances inputFormat) throws Exception
Determines the output format based on the input format and returns this. In case the output format cannot be returned immediately, i.e., immediateOutputFormat() returns false, then this method will be called from batchFinished().- Specified by:
determineOutputFormat
in classweka.filters.SimpleFilter
- Parameters:
inputFormat
- the input format to base the output format on- Returns:
- the output format
- Throws:
Exception
- in case the determination goes wrong- See Also:
SimpleBatchFilter.hasImmediateOutputFormat()
,SimpleBatchFilter.batchFinished()
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getCapabilities
public weka.core.Capabilities getCapabilities()
Returns the Capabilities of this filter.- Specified by:
getCapabilities
in interfaceweka.core.CapabilitiesHandler
- Overrides:
getCapabilities
in classweka.filters.Filter
- Returns:
- the capabilities of this object
- See Also:
Capabilities
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process
protected weka.core.Instances process(weka.core.Instances instances) throws Exception
Processes the given data (may change the provided dataset) and returns the modified version. This method is called in batchFinished().- Specified by:
process
in classweka.filters.SimpleFilter
- Parameters:
instances
- the data to process- Returns:
- the modified data
- Throws:
Exception
- in case the processing goes wrong- See Also:
SimpleBatchFilter.batchFinished()
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getRevision
public String getRevision()
Returns the revision string.- Specified by:
getRevision
in interfaceweka.core.RevisionHandler
- Overrides:
getRevision
in classweka.filters.Filter
- Returns:
- the revision
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main
public static void main(String[] args)
runs the filter with the given arguments.- Parameters:
args
- the commandline arguments
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