Package weka.attributeSelection
Class CostSensitiveSubsetEval
- java.lang.Object
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- weka.attributeSelection.ASEvaluation
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- weka.attributeSelection.CostSensitiveASEvaluation
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- weka.attributeSelection.CostSensitiveSubsetEval
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- All Implemented Interfaces:
java.io.Serializable
,SubsetEvaluator
,CapabilitiesHandler
,OptionHandler
,RevisionHandler
public class CostSensitiveSubsetEval extends CostSensitiveASEvaluation implements java.io.Serializable, SubsetEvaluator, OptionHandler
A meta subset evaluator that makes its base subset evaluator cost-sensitive. Valid options are:-C <cost file name> File name of a cost matrix to use. If this is not supplied, a cost matrix will be loaded on demand. The name of the on-demand file is the relation name of the training data plus ".cost", and the path to the on-demand file is specified with the -N option.
-N <directory> Name of a directory to search for cost files when loading costs on demand (default current directory).
-cost-matrix <matrix> The cost matrix in Matlab single line format.
-S <integer> The seed to use for random number generation.
-W Full name of base evaluator. (default: weka.attributeSelection.CfsSubsetEval)
Options specific to evaluator weka.attributeSelection.CfsSubsetEval:
-M Treat missing values as a seperate value.
-L Don't include locally predictive attributes.
- Version:
- $Revision: 5562 $
- Author:
- Mark Hall (mhall{[at]}pentaho{[dot]}com)
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class weka.attributeSelection.CostSensitiveASEvaluation
MATRIX_ON_DEMAND, MATRIX_SUPPLIED, TAGS_MATRIX_SOURCE
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Constructor Summary
Constructors Constructor Description CostSensitiveSubsetEval()
Default constructor.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description double
evaluateSubset(java.util.BitSet subset)
Evaluates a subset of attributes.java.lang.String
getRevision()
Returns the revision string.static void
main(java.lang.String[] args)
Main method for testing this class.void
setEvaluator(ASEvaluation newEvaluator)
Set the base evaluator.-
Methods inherited from class weka.attributeSelection.CostSensitiveASEvaluation
buildEvaluator, costMatrixSourceTipText, costMatrixTipText, defaultEvaluatorString, evaluatorTipText, getCapabilities, getCostMatrix, getCostMatrixSource, getEvaluator, getOnDemandDirectory, getOptions, getSeed, globalInfo, listOptions, onDemandDirectoryTipText, postProcess, seedTipText, setCostMatrix, setCostMatrixSource, setOnDemandDirectory, setOptions, setSeed, toString
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Methods inherited from class weka.attributeSelection.ASEvaluation
clean, forName, makeCopies
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Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface weka.core.OptionHandler
getOptions, listOptions, setOptions
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Method Detail
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setEvaluator
public void setEvaluator(ASEvaluation newEvaluator) throws java.lang.IllegalArgumentException
Set the base evaluator.- Overrides:
setEvaluator
in classCostSensitiveASEvaluation
- Parameters:
newEvaluator
- the evaluator to use.- Throws:
java.lang.IllegalArgumentException
- if the evaluator is not an instance of SubsetEvaluator
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evaluateSubset
public double evaluateSubset(java.util.BitSet subset) throws java.lang.Exception
Evaluates a subset of attributes. Delegates the actual evaluation to the base subset evaluator.- Specified by:
evaluateSubset
in interfaceSubsetEvaluator
- Parameters:
subset
- a bitset representing the attribute subset to be evaluated- Returns:
- the "merit" of the subset
- Throws:
java.lang.Exception
- if the subset could not be evaluated
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getRevision
public java.lang.String getRevision()
Returns the revision string.- Specified by:
getRevision
in interfaceRevisionHandler
- Overrides:
getRevision
in classCostSensitiveASEvaluation
- Returns:
- the revision
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main
public static void main(java.lang.String[] args)
Main method for testing this class.- Parameters:
args
- the options
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