edu.umass.cs.mallet.base.types

Class DenseVector

java.lang.Object

edu.umass.cs.mallet.base.types.DenseMatrix

edu.umass.cs.mallet.base.types.DenseVector

All Implemented Interfaces:

ConstantMatrix, Matrix, Vector, Serializable

Direct Known Subclasses:

DenseFeatureVector

public class DenseVector
extends DenseMatrix
implements Vector, Serializable

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.umass.cs.mallet.base.types.DenseMatrix

hasInfinite

Constructor Summary

Constructors

Constructor and Description
DenseVector(double[] values)
DenseVector(double[] values, boolean copy)
DenseVector(int size)

Method Summary

Modifier and Type	Method and Description
void	addTo(double[] v)
void	addTo(double[] v, double factor)
void	arrayCopyFrom(double[] a) Copy values from an array into this vector.
int	arrayCopyFrom(double[] a, int startingArrayIndex) Copy values from an array starting at a particular index into this vector.
int	arrayCopyFrom(int i, Matrix m)
int	arrayCopyInto(double[] array, int startingArrayIndex) Copy the contents of this vector into an array starting at a particular index.
int	arrayCopyTo(int i, double[] a)
int	arrayCopyTo(int i, Matrix m)
ConstantMatrix	cloneMatrix()
void	columnPlusEquals(int columnIndex, double value)
int	getDimensions(int[] sizes)
int	getNumDimensions()
static double	max(double[] v)
static double	normalize(double[] v)
static void	print(double[] v)
static void	print(int[] v)
void	setValue(int[] indices, double value)
void	setValue(int index, double value)
int	singleIndex(int[] indices)
void	singleToIndices(int i, int[] indices)
static double	sum(double[] v)
double	value(int index)
double	value(int[] indices)

Methods inherited from class edu.umass.cs.mallet.base.types.DenseMatrix

absNorm, absNormalize, almostEquals, divideEquals, dotProduct, elementwiseDivideEquals, elementwiseDivideEquals, elementwiseTimesEquals, elementwiseTimesEquals, equalsPlus, incrementSingleValue, indexAtLocation, infinityNorm, infinityNorm, infinityNormalize, isNaN, location, numLocations, oneNorm, oneNormalize, plusEquals, plusEquals, plusEquals, plusEquals, plusEquals, print, set, setAll, setSingleValue, setValueAtLocation, setWithAddend, setWithFactor, singleSize, singleValue, substitute, timesEquals, timesEquals, twoNorm, twoNormalize, valueAtLocation

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.umass.cs.mallet.base.types.ConstantMatrix

absNorm, dotProduct, indexAtLocation, infinityNorm, isNaN, location, numLocations, oneNorm, print, singleSize, singleValue, twoNorm, valueAtLocation

Constructor Detail

DenseVector

public DenseVector(double[] values,
                   boolean copy)

DenseVector

public DenseVector(double[] values)

DenseVector

public DenseVector(int size)

Method Detail

getNumDimensions

public int getNumDimensions()

Specified by:

getNumDimensions in interface ConstantMatrix

Specified by:

getNumDimensions in class DenseMatrix

getDimensions

public int getDimensions(int[] sizes)

Specified by:

getDimensions in interface ConstantMatrix

Specified by:

getDimensions in class DenseMatrix

value

public double value(int[] indices)

Specified by:

value in interface ConstantMatrix

Specified by:

value in class DenseMatrix

value

public double value(int index)

Specified by:

value in interface Vector

setValue

public void setValue(int[] indices,
                     double value)

Specified by:

setValue in interface Matrix

Specified by:

setValue in class DenseMatrix

setValue

public void setValue(int index,
                     double value)

columnPlusEquals

public void columnPlusEquals(int columnIndex,
                             double value)

cloneMatrix

public ConstantMatrix cloneMatrix()

Specified by:

cloneMatrix in interface ConstantMatrix

Specified by:

cloneMatrix in class DenseMatrix

singleIndex

public int singleIndex(int[] indices)

Specified by:

singleIndex in interface ConstantMatrix

Specified by:

singleIndex in class DenseMatrix

singleToIndices

public void singleToIndices(int i,
                            int[] indices)

Specified by:

singleToIndices in interface ConstantMatrix

Specified by:

singleToIndices in class DenseMatrix

arrayCopyFrom

public final int arrayCopyFrom(int i,
                               Matrix m)

arrayCopyFrom

public final void arrayCopyFrom(double[] a)

Copy values from an array into this vector. The array should have the same size as the vector

arrayCopyFrom

public final int arrayCopyFrom(double[] a,
                               int startingArrayIndex)

Copy values from an array starting at a particular index into this vector. The array must have at least as many values beyond the starting index as there are in the vector.

Returns:

Next uncopied index in the array.

arrayCopyTo

public final int arrayCopyTo(int i,
                             Matrix m)

arrayCopyTo

public final int arrayCopyTo(int i,
                             double[] a)

arrayCopyInto

public final int arrayCopyInto(double[] array,
                               int startingArrayIndex)

Copy the contents of this vector into an array starting at a particular index.

Returns:

Next available index in the array

addTo

public void addTo(double[] v)

addTo

public void addTo(double[] v,
                  double factor)

sum

public static double sum(double[] v)

normalize

public static double normalize(double[] v)

max

public static double max(double[] v)

print

public static void print(double[] v)

print

public static void print(int[] v)