keel.Algorithms.Neural_Networks.NNEP_Common.util.normalizer

Class Normalizer

java.lang.Object

keel.Algorithms.Neural_Networks.NNEP_Common.util.normalizer.Normalizer

public class Normalizer
extends java.lang.Object

Represents a data normalizer

Since:

JDK1.5

Version:

0.1

Author:

Written by Pedro Antonio Gutierrez Penya, Aaron Ruiz Mora (University of Cordoba) 17/07/2007

Constructor Summary

Constructors

Constructor and Description
Normalizer() Empty constructor

Method Summary

Modifier and Type	Method and Description
void	scale(double[] values, double unscaledMax, double unscaledMin, double scaledMax, double scaledMin) Scale an array of values from a specific domain [unscaledMin, unscaledMax] to other domain [scaledMin, scaledMax]
double	scale(double value, double unscaledMax, double unscaledMin, double scaledMax, double scaledMin) Scale a value from a specific domain [unscaledMin, unscaledMax] to other domain [scaledMin, scaledMax]
void	scaleDS(DoubleTransposedDataSet dataset, double[] scaledMax, double[] scaledMin, double[] unscaledMax, double[] unscaledMin) Scales a IDataSet using the the maximum and minimum scaled and unscaled values specified

Methods inherited from class java.lang.Object

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

Constructor Detail

Normalizer

public Normalizer()

Empty constructor

Method Detail

scaleDS

public void scaleDS(DoubleTransposedDataSet dataset,
                    double[] scaledMax,
                    double[] scaledMin,
                    double[] unscaledMax,
                    double[] unscaledMin)

Scales a IDataSet using the the maximum and minimum scaled and unscaled values specified

Parameters:

dataset - IDataSet to normalize

scaledMax - Array of maximum scaled values

scaledMin - Array of minimum scaled values

unscaledMax - Array of maximum unscaled values

unscaledMin - Array of minimum unscaled values

scale

public void scale(double[] values,
                  double unscaledMax,
                  double unscaledMin,
                  double scaledMax,
                  double scaledMin)

Scale an array of values from a specific domain [unscaledMin, unscaledMax] to other domain [scaledMin, scaledMax]

Parameters:

values - Double array of values to be scaled

unscaledMax - Double maximum unscaled domain

unscaledMin - Double minimum unscaled domain

scaledMax - Double maximum scaled domain

scaledMin - Double minimum scaled domain

scale

public double scale(double value,
                    double unscaledMax,
                    double unscaledMin,
                    double scaledMax,
                    double scaledMin)

Scale a value from a specific domain [unscaledMin, unscaledMax] to other domain [scaledMin, scaledMax]

Parameters:

value - Double value to be scaled

unscaledMax - Double maximum unscaled domain

unscaledMin - Double minimum unscaled domain

scaledMax - Double maximum scaled domain

scaledMin - Double minimum scaled domain

Returns:

double Value scaled