Class MahalanobisEstimator

java.lang.Object
weka.estimators.Estimator
weka.estimators.MahalanobisEstimator
All Implemented Interfaces:
Serializable, Cloneable, CapabilitiesHandler, CapabilitiesIgnorer, OptionHandler, RevisionHandler, IncrementalEstimator

public class MahalanobisEstimator extends Estimator implements IncrementalEstimator
Simple probability estimator that places a single normal distribution over the observed values.
Version:
$Revision: 15521 $
Author:
Len Trigg (trigg@cs.waikato.ac.nz)
See Also:
  • Constructor Details

    • MahalanobisEstimator

      public MahalanobisEstimator(Matrix covariance, double constDelta, double valueMean)
      Constructor
      Parameters:
      covariance -
      constDelta -
      valueMean -
  • Method Details

    • addValue

      public void addValue(double data, double weight)
      Add a new data value to the current estimator. Does nothing because the data is provided in the constructor.
      Specified by:
      addValue in interface IncrementalEstimator
      Overrides:
      addValue in class Estimator
      Parameters:
      data - the new data value
      weight - the weight assigned to the data value
    • getProbability

      public double getProbability(double data)
      Get a probability estimate for a value
      Specified by:
      getProbability in class Estimator
      Parameters:
      data - the value to estimate the probability of
      Returns:
      the estimated probability of the supplied value
    • toString

      public String toString()
      Display a representation of this estimator
      Overrides:
      toString in class Object
    • getCapabilities

      public Capabilities getCapabilities()
      Returns default capabilities of the classifier.
      Specified by:
      getCapabilities in interface CapabilitiesHandler
      Overrides:
      getCapabilities in class Estimator
      Returns:
      the capabilities of this classifier
      See Also:
    • getRevision

      public String getRevision()
      Returns the revision string.
      Specified by:
      getRevision in interface RevisionHandler
      Overrides:
      getRevision in class Estimator
      Returns:
      the revision
    • main

      public static void main(String[] argv)
      Main method for testing this class.
      Parameters:
      argv - should contain a sequence of numeric values