weka.attributeSelection
Class CostSensitiveSubsetEval
java.lang.Object
weka.attributeSelection.ASEvaluation
weka.attributeSelection.CostSensitiveASEvaluation
weka.attributeSelection.CostSensitiveSubsetEval
- 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: 1.2 $
- Author:
- Mark Hall (mhall{[at]}pentaho{[dot]}com)
- See Also:
- Serialized Form
Method Summary |
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 |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
CostSensitiveSubsetEval
public CostSensitiveSubsetEval()
- Default constructor.
setEvaluator
public void setEvaluator(ASEvaluation newEvaluator)
throws java.lang.IllegalArgumentException
- Set the base evaluator.
- Overrides:
setEvaluator
in class CostSensitiveASEvaluation
- Parameters:
newEvaluator
- the evaluator to use.
- Throws:
java.lang.IllegalArgumentException
- if the evaluator is not an instance of SubsetEvaluator
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 interface SubsetEvaluator
- 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
getRevision
public java.lang.String getRevision()
- Returns the revision string.
- Specified by:
getRevision
in interface RevisionHandler
- Overrides:
getRevision
in class CostSensitiveASEvaluation
- Returns:
- the revision
main
public static void main(java.lang.String[] args)
- Main method for testing this class.
- Parameters:
args
- the options