weka.classifiers.meta
Class RangeCheck

java.lang.Object
  weka.classifiers.AbstractClassifier
      weka.classifiers.SingleClassifierEnhancer
          weka.classifiers.meta.RangeCheck

All Implemented Interfaces:

Serializable, Cloneable, weka.classifiers.Classifier, RangeCheckClassifier, weka.core.CapabilitiesHandler, weka.core.OptionHandler, weka.core.RevisionHandler

public class RangeCheck
extends weka.classifiers.SingleClassifierEnhancer
implements RangeCheckClassifier

Keeps track of the ranges in case of numeric attributes. It then allows checks whether an instance is for one or more attributes outside the training range.

Valid options are:

 -D
  If set, classifier is run in debug mode and
  may output additional info to the console

 -W
  Full name of base classifier.
  (default: weka.classifiers.rules.ZeroR)

 
 Options specific to classifier weka.classifiers.rules.ZeroR:
 

 -D
  If set, classifier is run in debug mode and
  may output additional info to the console

Version:

$Revision: 5605 $

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

protected weka.core.Instances	m_Header the training header.
protected Hashtable<Integer,double[]>	m_Ranges the ranges (attribute index <-> double[]).

Fields inherited from class weka.classifiers.SingleClassifierEnhancer

m_Classifier

Fields inherited from class weka.classifiers.AbstractClassifier

m_Debug

Constructor Summary

RangeCheck()

Method Summary

void	buildClassifier(weka.core.Instances data) Build the classifier on the filtered data.
List<String>	checkRangeForInstance(weka.core.Instance inst) Checks the range for the instance.
double[]	distributionForInstance(weka.core.Instance instance) Classifies a given instance after filtering.
String	globalInfo() Returns a string describing this classifier.
String	toString() Output a representation of this classifier

Methods inherited from class weka.classifiers.SingleClassifierEnhancer

classifierTipText, defaultClassifierString, getCapabilities, getClassifier, getClassifierSpec, getOptions, listOptions, setClassifier, setOptions

Methods inherited from class weka.classifiers.AbstractClassifier

classifyInstance, debugTipText, forName, getDebug, getRevision, makeCopies, makeCopy, runClassifier, setDebug

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface weka.classifiers.Classifier

classifyInstance, getCapabilities

Field Detail

m_Ranges

protected Hashtable<Integer,double[]> m_Ranges

the ranges (attribute index <-> double[]).

m_Header

protected weka.core.Instances m_Header

the training header.

Constructor Detail

RangeCheck

public RangeCheck()

Method Detail

globalInfo

public String globalInfo()

Returns a string describing this classifier.

Returns:

a description of the classifier suitable for displaying in the explorer/experimenter gui

buildClassifier

public void buildClassifier(weka.core.Instances data)
                     throws Exception

Build the classifier on the filtered data.

Specified by:

buildClassifier in interface weka.classifiers.Classifier

Parameters:

data - the training data

Throws:

Exception - if the classifier could not be built successfully

distributionForInstance

public double[] distributionForInstance(weka.core.Instance instance)
                                 throws Exception

Classifies a given instance after filtering.

Specified by:

distributionForInstance in interface weka.classifiers.Classifier

Overrides:

distributionForInstance in class weka.classifiers.AbstractClassifier

Parameters:

instance - the instance to be classified

Returns:

the class distribution for the given instance

Throws:

Exception - if instance could not be classified successfully

checkRangeForInstance

public List<String> checkRangeForInstance(weka.core.Instance inst)

Checks the range for the instance. The array contains an entry for each attribute that exceeded the stored ranges.

Specified by:

checkRangeForInstance in interface RangeCheckClassifier

Parameters:

inst - the instance to check

Returns:

the failed checks

toString

public String toString()

Output a representation of this classifier

Overrides:

toString in class Object

Returns:

a representation of this classifier