Package ai.libs.jaicore.math.linearalgebra

Class DenseDoubleVector

java.lang.Object

ai.libs.jaicore.math.linearalgebra.AbstractVector

ai.libs.jaicore.math.linearalgebra.DenseDoubleVector

All Implemented Interfaces:

org.api4.java.common.math.IVector

public class DenseDoubleVector
extends AbstractVector

Dense vector implementation wrapping the MTJ implementation of a dense vector.

Constructor Summary

Constructors

Constructor	Description
DenseDoubleVector(double[] data)	Creates a dense vector from the given data.
DenseDoubleVector(int numberOfDimensions)	Creates a dense vector with the given amount of dimensions, initialized with zeros.
DenseDoubleVector(int size, double value)	Creates a new dense vector with the given size and paste for each entry the given value.
DenseDoubleVector(no.uib.cipr.matrix.Vector vector)	Creates a dense vector from an MTJ vector.

Method Summary

Modifier and Type	Method	Description
void	addConstant(double constant)
void	addVector(double[] vectorAsArray)
void	addVector(org.api4.java.common.math.IVector vector)
double[]	asArray()
void	divideByConstant(double constant)
void	divideByVectorPairwise(double[] vectorAsArray)
void	divideByVectorPairwise(org.api4.java.common.math.IVector secondVector)
double	dotProduct(double[] vectorAsArray)
double	dotProduct(org.api4.java.common.math.IVector vector)
org.api4.java.common.math.IVector	duplicate()
void	fillRandomly()
double	getValue(int index)
boolean	isSparse()
org.api4.java.common.math.IVector	kroneckerProduct(double[] vectorAsArray)
int	length()
void	multiplyByConstant(double constant)
void	multiplyByVectorPairwise(double[] vectorAsArray)
void	multiplyByVectorPairwise(org.api4.java.common.math.IVector secondVector)
void	normalize()
void	setValue(int index, double value)
void	subtractConstant(double constant)
void	subtractVector(double[] vectorAsArray)
void	subtractVector(org.api4.java.common.math.IVector vector)
DenseDoubleVector	toDenseVector()
SparseDoubleVector	toSparseVector()

Methods inherited from class ai.libs.jaicore.math.linearalgebra.AbstractVector

addConstantToCopy, addVectorToCopy, addVectorToCopy, average, divideByConstantToCopy, divideByVectorPairwiseToCopy, divideByVectorPairwiseToCopy, equals, euclideanNorm, hashCode, incrementValueAt, kroneckerProductInternal, mean, multiplyByConstantToCopy, multiplyByVectorPairwiseToCopy, multiplyByVectorPairwiseToCopy, squareRoot, squareRootToCopy, standardDeviation, subtractConstantFromCopy, subtractVectorFromCopy, subtractVectorFromCopy, sum, toString, zeroAllDimensions

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.api4.java.common.math.IVector

stream

Constructor Detail

DenseDoubleVector

public DenseDoubleVector(int numberOfDimensions)

Creates a dense vector with the given amount of dimensions, initialized with zeros.

Parameters:

numberOfDimensions - The number of dimensions of this vector.

DenseDoubleVector

public DenseDoubleVector(double[] data)

Creates a dense vector from the given data.

Parameters:

data - A double array, which can be interpreted as a vector.

DenseDoubleVector

public DenseDoubleVector(no.uib.cipr.matrix.Vector vector)

Creates a dense vector from an MTJ vector.

Parameters:

vector - The MTJ vector.

DenseDoubleVector

public DenseDoubleVector(int size,
                         double value)

Creates a new dense vector with the given size and paste for each entry the given value.

Parameters:

size - The size of the dense vector.

value - The value for each entry.

Method Detail

length

public int length()

getValue

public double getValue(int index)

setValue

public void setValue(int index,
                     double value)

addConstant

public void addConstant(double constant)

addVector

public void addVector(org.api4.java.common.math.IVector vector)

subtractConstant

public void subtractConstant(double constant)

subtractVector

public void subtractVector(org.api4.java.common.math.IVector vector)

multiplyByVectorPairwise

public void multiplyByVectorPairwise(org.api4.java.common.math.IVector secondVector)

multiplyByConstant

public void multiplyByConstant(double constant)

divideByVectorPairwise

public void divideByVectorPairwise(org.api4.java.common.math.IVector secondVector)

divideByConstant

public void divideByConstant(double constant)

dotProduct

public double dotProduct(org.api4.java.common.math.IVector vector)

isSparse

public boolean isSparse()

asArray

public double[] asArray()

addVector

public void addVector(double[] vectorAsArray)

subtractVector

public void subtractVector(double[] vectorAsArray)

multiplyByVectorPairwise

public void multiplyByVectorPairwise(double[] vectorAsArray)

divideByVectorPairwise

public void divideByVectorPairwise(double[] vectorAsArray)

dotProduct

public double dotProduct(double[] vectorAsArray)

duplicate

public org.api4.java.common.math.IVector duplicate()

normalize

public void normalize()

fillRandomly

public void fillRandomly()

toDenseVector

public DenseDoubleVector toDenseVector()

Specified by:

toDenseVector in class AbstractVector

toSparseVector

public SparseDoubleVector toSparseVector()

Specified by:

toSparseVector in class AbstractVector

kroneckerProduct

public org.api4.java.common.math.IVector kroneckerProduct(double[] vectorAsArray)