keel.Algorithms.Genetic_Rule_Learning.PART

Class Utilities

java.lang.Object

keel.Algorithms.Genetic_Rule_Learning.PART.Utilities

public class Utilities
extends java.lang.Object

Collection of auxiliary methods.

Since:

JDK1.2

Version:

1.1

Author:

Written by Antonio Alejandro Tortosa (University of Granada) 15/10/2008, Modified by Xavi Solé (La Salle, Ramón Llull University - Barcelona) 03/12/2008

Field Summary

Fields

Modifier and Type	Field and Description
protected static double	log2 The log of 2.

Constructor Summary

Constructors

Constructor and Description
Utilities()

Method Summary

Modifier and Type	Method and Description
static double	logFunc(double num) Help method for computing entropy.
static void	mergeSort(long[] theArray, int nElems) Mergesort algorithm for an array of long integers.
static void	mergeSort(Pair[] theArray, int nElems) Mergesort algorithm for an array of Pairs.

Methods inherited from class java.lang.Object

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

Field Detail

log2

protected static double log2

The log of 2.

Constructor Detail

Utilities

public Utilities()

Method Detail

mergeSort

public static void mergeSort(long[] theArray,
                             int nElems)

Mergesort algorithm for an array of long integers.

Parameters:

theArray - long[] the Array to sort

nElems - int size of theArray

mergeSort

public static void mergeSort(Pair[] theArray,
                             int nElems)

Mergesort algorithm for an array of Pairs.

Parameters:

theArray - Pair[] the Array to sort

nElems - int size of theArray

logFunc

public static double logFunc(double num)

Help method for computing entropy.

Parameters:

num - the number

Returns:

the entropy of the number