keel.Algorithms.Complexity_Metrics

Class Statistics

java.lang.Object

keel.Algorithms.Complexity_Metrics.Statistics

public class Statistics
extends java.lang.Object

This is the main class of the Statistics computation

Since:

JDK1.2

Version:

1.1

Author:

Written by Nuria Macia (La Salle, Universitat Ramon Llull) 27/05/2010 and modified by Albert Orriols (La Salle, Universitat Ramon Llull) 31/05/2010.

Method Summary

Modifier and Type	Method and Description
double	getMax(int whichAttribute, int whichClass) It returns the maximum of the given attribute within the given class
double	getMean(int whichAttribute, int whichClass) It returns the mean of the given attribute within the given class
double	getMin(int whichAttribute, int whichClass) It returns the minimum of the given attribute within the given class
double	getVariance(int whichAttribute, int whichClass) It returns the variance of the given attribute within the given class
void	run(double[][] example, int[] classOfExample, int numberOfExamples, int numberOfAttributes) It computes the statistics for the given parameters

Methods inherited from class java.lang.Object

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

Method Detail

run

public void run(double[][] example,
                int[] classOfExample,
                int numberOfExamples,
                int numberOfAttributes)

It computes the statistics for the given parameters

Parameters:

example - Examples normalized from the KEEL Data set

classOfExample - Class of each normalized example

numberOfExamples - Number of examples in the data set

numberOfAttributes - Number of attributes

getVariance

public double getVariance(int whichAttribute,
                          int whichClass)

It returns the variance of the given attribute within the given class

Parameters:

whichAttribute - index of the attribute

whichClass - index of the class

Returns:

variance of the given attribute within the given class

getMean

public double getMean(int whichAttribute,
                      int whichClass)

It returns the mean of the given attribute within the given class

Parameters:

whichAttribute - index of the attribute

whichClass - index of the class

Returns:

mean of the given attribute within the given class

getMax

public double getMax(int whichAttribute,
                     int whichClass)

It returns the maximum of the given attribute within the given class

Parameters:

whichAttribute - index of the attribute

whichClass - index of the class

Returns:

maximum of the given attribute within the given class

getMin

public double getMin(int whichAttribute,
                     int whichClass)

It returns the minimum of the given attribute within the given class

Parameters:

whichAttribute - index of the attribute

whichClass - index of the class

Returns:

minimum of the given attribute within the given class