keel.Algorithms.Discretizers.IDD

Class IDD

java.lang.Object

keel.Algorithms.Discretizers.Basic.Discretizer

keel.Algorithms.Discretizers.IDD.IDD

public class IDD
extends Discretizer

This class implements the IDD

Since:

JDK1.6

Version:

1.0

Author:

Written by Jose A. Saez Munoz (SCI2S research group, DECSAI in ETSIIT, University of Granada), 21/12/2009

Field Summary

Fields inherited from class keel.Algorithms.Discretizers.Basic.Discretizer

classOfInstances, cutPoints, iClassIndex, realAttributes, realValues

Constructor Summary

Constructors

Constructor and Description
IDD() Constructor of the class

Method Summary

Modifier and Type	Method and Description
protected java.util.Vector	discretizeAttribute(int attribute, int[] values, int begin, int end) Returns a vector with the discretized values
protected void	sortValues(keel.Algorithms.Discretizers.IDD.IDD.rank[] values, int begin, int end, int type) Sorts an array

Methods inherited from class keel.Algorithms.Discretizers.Basic.Discretizer

applyDiscretization, buildCutPoints, discretize, getCutPoint, getNumIntervals, sortValues

Methods inherited from class java.lang.Object

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

Constructor Detail

IDD

public IDD()

Constructor of the class

Method Detail

discretizeAttribute

protected java.util.Vector discretizeAttribute(int attribute,
                                               int[] values,
                                               int begin,
                                               int end)

Returns a vector with the discretized values

Specified by:

discretizeAttribute in class Discretizer

Parameters:

attribute - index of the attribute to discretize

values - vector of indexes of the instances sorted from lowest to highest value of attribute

begin - index of the instance with the lowest value of attribute

end - index of the instance with the highest value of attribute

Returns:

vector with the discretized values

sortValues

protected void sortValues(keel.Algorithms.Discretizers.IDD.IDD.rank[] values,
                          int begin,
                          int end,
                          int type)

Sorts an array

Parameters:

values - array to sort

begin - start position to sort

end - end position to sort

type - = HIGHER_FIRST (it sorts from highest to lowest), type = LOWER_FIRST (it sorts from lowest to higest)