greycat.ml.preprocessing

Class PCA

java.lang.Object

greycat.ml.preprocessing.PCA

public class PCA
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	CENTER_ON_AVG
static double	EPS
static int	NOPROCESS
static int	NORMALIZE

Constructor Summary

Constructors

Constructor and Description
PCA(DMatrix data, int processType)

Method Summary

Modifier and Type	Method and Description
DMatrix	convertSpace(DMatrix initial)
double[]	convertVector(double[] data)
double[]	get_avg()
int	get_bestDim()
DMatrix	get_data()
double[]	get_max()
double[]	get_min()
double[]	get_sigma()
double[]	getDimensionInfo()
double	getPercentRetained()
DMatrix	getTransformationVector()
DMatrix	inverseConvertSpace(DMatrix initial)
double[]	inverseConvertVector(double[] data)
void	inverseNormalizeData(DMatrix data)
void	normalizeData(DMatrix data)
static int	retain(double[] svector, double percent)
void	setDimension(int dim)

Methods inherited from class java.lang.Object

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

Field Detail

EPS

public static double EPS

NOPROCESS

public static int NOPROCESS

CENTER_ON_AVG

public static int CENTER_ON_AVG

NORMALIZE

public static int NORMALIZE

Constructor Detail

PCA

public PCA(DMatrix data,
           int processType)

Method Detail

get_bestDim

public int get_bestDim()

get_data

public DMatrix get_data()

getDimensionInfo

public double[] getDimensionInfo()

get_min

public double[] get_min()

get_max

public double[] get_max()

get_avg

public double[] get_avg()

get_sigma

public double[] get_sigma()

normalizeData

public void normalizeData(DMatrix data)

convertVector

public double[] convertVector(double[] data)

convertSpace

public DMatrix convertSpace(DMatrix initial)

setDimension

public void setDimension(int dim)

inverseNormalizeData

public void inverseNormalizeData(DMatrix data)

inverseConvertVector

public double[] inverseConvertVector(double[] data)

inverseConvertSpace

public DMatrix inverseConvertSpace(DMatrix initial)

getTransformationVector

public DMatrix getTransformationVector()

getPercentRetained

public double getPercentRetained()

retain

public static int retain(double[] svector,
                         double percent)