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Class weka.classifiers.meta.OrdinalClassClassifier

java.lang.Object
    |
    +----weka.classifiers.Classifier
            |
            +----weka.classifiers.DistributionClassifier
                    |
                    +----weka.classifiers.meta.OrdinalClassClassifier

public class OrdinalClassClassifier
extends DistributionClassifier
implements OptionHandler
Meta classifier for transforming an ordinal class problem to a series of binary class problems. For more information see:

Frank, E. and Hall, M. (in press). A simple approach to ordinal prediction. 12th European Conference on Machine Learning. Freiburg, Germany.

Valid options are:

-W classname
Specify the full class name of a learner as the basis for the ordinalclassclassifier (required).

Version:
$Revision 1.0 $
Author:
Mark Hall
See Also:
DistributionClassifier, OptionHandler

Constructor Index

 o OrdinalClassClassifier()
 

Method Index

 o buildClassifier(Instances)
Builds the classifiers.
 o distributionClassifierTipText()
 
 o distributionForInstance(Instance)
Returns the distribution for an instance.
 o getDistributionClassifier()
Get the classifier used as the classifier
 o getOptions()
Gets the current settings of the Classifier.
 o globalInfo()
Returns a string describing this attribute evaluator
 o listOptions()
Returns an enumeration describing the available options.
 o main(String[])
Main method for testing this class.
 o setDistributionClassifier(DistributionClassifier)
Set the base classifier.
 o setOptions(String[])
Parses a given list of options.
 o toString()
Prints the classifiers.

Constructor Detail

 o OrdinalClassClassifier
public OrdinalClassClassifier()

Method Detail

 o globalInfo
public java.lang.String globalInfo()
          Returns a string describing this attribute evaluator
Returns:
a description of the evaluator suitable for displaying in the explorer/experimenter gui
 o buildClassifier
public void buildClassifier(Instances insts) throws java.lang.Exception
          Builds the classifiers.
Parameters:
insts - the training data.
Throws:
java.lang.Exception - if a classifier can't be built
Overrides:
buildClassifier in class Classifier
 o distributionForInstance
public double[] distributionForInstance(Instance inst) throws java.lang.Exception
          Returns the distribution for an instance.
Throws:
java.lang.Exception - if the distribution can't be computed successfully
Overrides:
distributionForInstance in class DistributionClassifier
 o listOptions
public java.util.Enumeration listOptions()
          Returns an enumeration describing the available options.
Returns:
an enumeration of all the available options.
 o setOptions
public void setOptions(java.lang.String options[]) throws java.lang.Exception
          Parses a given list of options. Valid options are:

-W classname
Specify the full class name of a learner as the basis for the ordinalclassclassifier (required).

Parameters:
options - the list of options as an array of strings
Throws:
java.lang.Exception - if an option is not supported
 o getOptions
public java.lang.String[] getOptions()
          Gets the current settings of the Classifier.
Returns:
an array of strings suitable for passing to setOptions
 o distributionClassifierTipText
public java.lang.String distributionClassifierTipText()
Returns:
tip text for this property suitable for displaying in the explorer/experimenter gui
 o setDistributionClassifier
public void setDistributionClassifier(DistributionClassifier newClassifier)
          Set the base classifier.
Parameters:
newClassifier - the Classifier to use.
 o getDistributionClassifier
public DistributionClassifier getDistributionClassifier()
          Get the classifier used as the classifier
Returns:
the classifier used as the classifier
 o toString
public java.lang.String toString()
          Prints the classifiers.
Overrides:
toString in class java.lang.Object
 o main
public static void main(java.lang.String argv[])
          Main method for testing this class.
Parameters:
argv - the options

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