org.hkijena.jipipe.utils

Class VectorUtils

java.lang.Object

org.hkijena.jipipe.utils.VectorUtils

public class VectorUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
VectorUtils()

Method Summary

Modifier and Type	Method and Description
static List<Double>	add(List<Double> v1, List<Double> v2)
static double	l1Norm(List<Double> vector)
static double	l2Norm(List<Double> vector)
static double	lInfinityNorm(List<Double> vector)
static List<Double>	multiplyScalar(List<Double> vector, double scalar)
static List<Double>	normalize(List<Double> vector)
static List<Double>	objectListToNumericVector(Collection<?> items)
static double	scalarProduct(List<Double> v1, List<Double> v2)
static List<Double>	subtract(List<Double> v1, List<Double> v2)

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorUtils

public VectorUtils()

Method Detail

objectListToNumericVector

public static List<Double> objectListToNumericVector(Collection<?> items)

l2Norm

public static double l2Norm(List<Double> vector)

l1Norm

public static double l1Norm(List<Double> vector)

lInfinityNorm

public static double lInfinityNorm(List<Double> vector)

multiplyScalar

public static List<Double> multiplyScalar(List<Double> vector,
                                          double scalar)

normalize

public static List<Double> normalize(List<Double> vector)

add

public static List<Double> add(List<Double> v1,
                               List<Double> v2)

subtract

public static List<Double> subtract(List<Double> v1,
                                    List<Double> v2)

scalarProduct

public static double scalarProduct(List<Double> v1,
                                   List<Double> v2)