Class NBTree

    • Constructor Detail

      • NBTree

        public NBTree()
    • Method Detail

      • globalInfo

        public java.lang.String globalInfo()
        Returns a string describing classifier
        Returns:
        a description suitable for displaying in the explorer/experimenter gui
      • getTechnicalInformation

        public TechnicalInformation getTechnicalInformation()
        Returns an instance of a TechnicalInformation object, containing detailed information about the technical background of this class, e.g., paper reference or book this class is based on.
        Specified by:
        getTechnicalInformation in interface TechnicalInformationHandler
        Returns:
        the technical information about this class
      • buildClassifier

        public void buildClassifier​(Instances instances)
                             throws java.lang.Exception
        Generates the classifier.
        Specified by:
        buildClassifier in class Classifier
        Parameters:
        instances - the data to train with
        Throws:
        java.lang.Exception - if classifier can't be built successfully
      • classifyInstance

        public double classifyInstance​(Instance instance)
                                throws java.lang.Exception
        Classifies an instance.
        Overrides:
        classifyInstance in class Classifier
        Parameters:
        instance - the instance to classify
        Returns:
        the classification
        Throws:
        java.lang.Exception - if instance can't be classified successfully
      • distributionForInstance

        public final double[] distributionForInstance​(Instance instance)
                                               throws java.lang.Exception
        Returns class probabilities for an instance.
        Overrides:
        distributionForInstance in class Classifier
        Parameters:
        instance - the instance to get the distribution for
        Returns:
        the class probabilities
        Throws:
        java.lang.Exception - if distribution can't be computed successfully
      • toString

        public java.lang.String toString()
        Returns a description of the classifier.
        Overrides:
        toString in class java.lang.Object
        Returns:
        a string representation of the classifier
      • graphType

        public int graphType()
        Returns the type of graph this classifier represents.
        Specified by:
        graphType in interface Drawable
        Returns:
        Drawable.TREE
      • graph

        public java.lang.String graph()
                               throws java.lang.Exception
        Returns graph describing the tree.
        Specified by:
        graph in interface Drawable
        Returns:
        the graph describing the tree
        Throws:
        java.lang.Exception - if graph can't be computed
      • toSummaryString

        public java.lang.String toSummaryString()
        Returns a superconcise version of the model
        Specified by:
        toSummaryString in interface Summarizable
        Returns:
        a description of the model
      • measureTreeSize

        public double measureTreeSize()
        Returns the size of the tree
        Returns:
        the size of the tree
      • measureNumLeaves

        public double measureNumLeaves()
        Returns the number of leaves
        Returns:
        the number of leaves
      • measureNumRules

        public double measureNumRules()
        Returns the number of rules (same as number of leaves)
        Returns:
        the number of rules
      • getMeasure

        public double getMeasure​(java.lang.String additionalMeasureName)
        Returns the value of the named measure
        Specified by:
        getMeasure in interface AdditionalMeasureProducer
        Parameters:
        additionalMeasureName - the name of the measure to query for its value
        Returns:
        the value of the named measure
        Throws:
        java.lang.IllegalArgumentException - if the named measure is not supported
      • enumerateMeasures

        public java.util.Enumeration enumerateMeasures()
        Returns an enumeration of the additional measure names
        Specified by:
        enumerateMeasures in interface AdditionalMeasureProducer
        Returns:
        an enumeration of the measure names
      • main

        public static void main​(java.lang.String[] argv)
        Main method for testing this class
        Parameters:
        argv - the commandline options