org.gcube.dataanalysis.ecoengine.utils

Class Operations

java.lang.Object

org.gcube.dataanalysis.ecoengine.utils.Operations

public class Operations
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
double[]	means
double[]	variances

Constructor Summary

Constructors

Constructor and Description
Operations()

Method Summary

Modifier and Type	Method and Description
static double[]	calcFrequencies(double[] interval, double[] points)
static int	calcNumOfRepresentativeElements(int numberOfElements, int minimumNumberToTake)
static int	chunkize(int numberOfElements, int partitionFactor)
static double	getMax(double[] points)
static int	getMax(int[] points)
static double	getMin(double[] points)
static int	getMin(int[] points)
static boolean	intervalContainsPoints(double min, double max, double[] points)
static double[]	inverseParabol(double a, double b, double c, double y)
static double[]	linearInterpolation(double el1, double el2, int intervals)
static double	logaritmicTransformation(double y)
static void	main(String[] args)
static void	main1(String[] args)
static void	main2(String[] args)
static double[]	normalizeFrequencies(double[] frequencies, int numberOfPoints)
static double[]	parabolicInterpolation(double startP, double endP, int intervals)
static double	scalarProduct(double[] a, double[] b)
double[][]	standardize(double[][] matrix)
double[][]	standardize(double[][] matrix, double[] meansVec, double[] variancesVec)
static double	sumVector(double[] a)
static int[]	takeChunks(int numberOfElements, int partitionFactor)
static double[]	uniformDivide(double max, double min, double[] points)
static int[]	uniformIntegerSampling(double min, double max, int maxElementsToTake)
static double[]	uniformSampling(double min, double max, int maxElementsToTake)
static double[]	vectorialAbsoluteDifference(double[] a, double[] b)
static double[]	vectorialDifference(double[] a, double[] b)

Methods inherited from class java.lang.Object

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

Field Detail

means

public double[] means

variances

public double[] variances

Constructor Detail

Operations

public Operations()

Method Detail

scalarProduct

public static double scalarProduct(double[] a,
                                   double[] b)

sumVector

public static double sumVector(double[] a)

vectorialDifference

public static double[] vectorialDifference(double[] a,
                                           double[] b)

vectorialAbsoluteDifference

public static double[] vectorialAbsoluteDifference(double[] a,
                                                   double[] b)

getMax

public static double getMax(double[] points)

getMax

public static int getMax(int[] points)

getMin

public static int getMin(int[] points)

getMin

public static double getMin(double[] points)

calcFrequencies

public static double[] calcFrequencies(double[] interval,
                                       double[] points)

normalizeFrequencies

public static double[] normalizeFrequencies(double[] frequencies,
                                            int numberOfPoints)

intervalContainsPoints

public static boolean intervalContainsPoints(double min,
                                             double max,
                                             double[] points)

uniformDivide

public static double[] uniformDivide(double max,
                                     double min,
                                     double[] points)

standardize

public double[][] standardize(double[][] matrix)

standardize

public double[][] standardize(double[][] matrix,
                              double[] meansVec,
                              double[] variancesVec)

calcNumOfRepresentativeElements

public static int calcNumOfRepresentativeElements(int numberOfElements,
                                                  int minimumNumberToTake)

linearInterpolation

public static double[] linearInterpolation(double el1,
                                           double el2,
                                           int intervals)

inverseParabol

public static double[] inverseParabol(double a,
                                      double b,
                                      double c,
                                      double y)

logaritmicTransformation

public static double logaritmicTransformation(double y)

parabolicInterpolation

public static double[] parabolicInterpolation(double startP,
                                              double endP,
                                              int intervals)

main1

public static void main1(String[] args)

main2

public static void main2(String[] args)

takeChunks

public static int[] takeChunks(int numberOfElements,
                               int partitionFactor)

chunkize

public static int chunkize(int numberOfElements,
                           int partitionFactor)

uniformSampling

public static double[] uniformSampling(double min,
                                       double max,
                                       int maxElementsToTake)

uniformIntegerSampling

public static int[] uniformIntegerSampling(double min,
                                           double max,
                                           int maxElementsToTake)

main

public static void main(String[] args)