Package weka.attributeSelection
Class CostSensitiveSubsetEval
java.lang.Object
weka.attributeSelection.ASEvaluation
weka.attributeSelection.CostSensitiveASEvaluation
weka.attributeSelection.CostSensitiveSubsetEval
- All Implemented Interfaces:
Serializable
,SubsetEvaluator
,CapabilitiesHandler
,OptionHandler
,RevisionHandler
public class CostSensitiveSubsetEval
extends CostSensitiveASEvaluation
implements 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:
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Field Summary
Fields inherited from class weka.attributeSelection.CostSensitiveASEvaluation
MATRIX_ON_DEMAND, MATRIX_SUPPLIED, TAGS_MATRIX_SOURCE
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptiondouble
evaluateSubset
(BitSet subset) Evaluates a subset of attributes.Returns the revision string.static void
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
Methods inherited from class weka.attributeSelection.ASEvaluation
clean, forName, makeCopies
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface weka.core.OptionHandler
getOptions, listOptions, setOptions
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Constructor Details
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CostSensitiveSubsetEval
public CostSensitiveSubsetEval()Default constructor.
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Method Details
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setEvaluator
Set the base evaluator.- Overrides:
setEvaluator
in classCostSensitiveASEvaluation
- Parameters:
newEvaluator
- the evaluator to use.- Throws:
IllegalArgumentException
- if the evaluator is not an instance of SubsetEvaluator
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evaluateSubset
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:
Exception
- if the subset could not be evaluated
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getRevision
Returns the revision string.- Specified by:
getRevision
in interfaceRevisionHandler
- Overrides:
getRevision
in classCostSensitiveASEvaluation
- Returns:
- the revision
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main
Main method for testing this class.- Parameters:
args
- the options
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