edu.umass.cs.mallet.base.types

Class Matrix2

java.lang.Object

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

edu.umass.cs.mallet.base.types.Matrix2

All Implemented Interfaces:

ConstantMatrix, Matrix, Serializable

public final class Matrix2
extends DenseMatrix

See Also:

Serialized Form

Field Summary

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

hasInfinite

Constructor Summary

Constructors

Constructor and Description
Matrix2(double[][] values)
Matrix2(double[] values, int nr, int nc)
Matrix2(double value, int nr, int nc)
Matrix2(int nr, int nc)

Method Summary

Modifier and Type	Method and Description
void	arrayCopyFrom(double[] array, int startingArrayIndex)
void	arrayCopyInto(double[] array, int startingArrayIndex)
ConstantMatrix	cloneMatrix()
Matrix2	cloneMatrix2()
void	columnPlusEquals(int ci, double v, double factor)
void	columnPlusEquals(int ci, Vector v, double factor)
int	getDimensions(int[] sizes)
int	getNumCols()
int	getNumDimensions()
int	getNumRows()
void	plusEquals(int ri, int ci, double value)
void	print()
double	rowDotProduct(int ri, Vector v)
double	rowDotProduct(int ri, Vector v, int maxCi, FeatureSelection selection) Skip all column indices higher than "maxCi".
void	rowPlusEquals(int ri, double v, double factor)
void	rowPlusEquals(int ri, Vector v, double factor)
void	rowSetAll(int ri, double v, FeatureSelection fselection, boolean ifSelected) If "ifSelected" is false, it reverses the selection.
void	setAll(double v)
void	setAll(double v, FeatureSelection fselection, boolean ifSelected) If "ifSelected" is false, it reverses the selection.
void	setSingle(int i, double value)
void	setValue(int[] indices, double val)
void	setValue(int rowIndex, int colIndex, double value)
int	singleIndex(int[] indices)
int	singleSize()
void	singleToIndices(int i, int[] indices)
double	singleValue(int i)
boolean	sizeMatches(ConstantMatrix m)
boolean	sizeMatches(Matrix2 m)
String	toString()
Matrix2	transpose()
double	twoNormSquared()
double	value(int[] indices)
double	value(int rowIndex, int colIndex)

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, set, setSingleValue, setValueAtLocation, setWithAddend, setWithFactor, substitute, timesEquals, timesEquals, twoNorm, twoNormalize, valueAtLocation

Methods inherited from class java.lang.Object

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

Constructor Detail

Matrix2

public Matrix2(double[] values,
               int nr,
               int nc)

Matrix2

public Matrix2(int nr,
               int nc)

Matrix2

public Matrix2(double[][] values)

Matrix2

public Matrix2(double value,
               int nr,
               int nc)

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 rowIndex,
                    int colIndex)

arrayCopyInto

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

arrayCopyFrom

public final void arrayCopyFrom(double[] array,
                                int startingArrayIndex)

setValue

public void setValue(int rowIndex,
                     int colIndex,
                     double value)

sizeMatches

public boolean sizeMatches(ConstantMatrix m)

sizeMatches

public boolean sizeMatches(Matrix2 m)

getNumRows

public int getNumRows()

getNumCols

public int getNumCols()

transpose

public Matrix2 transpose()

value

public final double value(int[] indices)

Specified by:

value in interface ConstantMatrix

Specified by:

value in class DenseMatrix

setValue

public final void setValue(int[] indices,
                           double val)

Specified by:

setValue in interface Matrix

Specified by:

setValue in class DenseMatrix

singleIndex

public final int singleIndex(int[] indices)

Specified by:

singleIndex in interface ConstantMatrix

Specified by:

singleIndex in class DenseMatrix

singleToIndices

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

Specified by:

singleToIndices in interface ConstantMatrix

Specified by:

singleToIndices in class DenseMatrix

singleValue

public final double singleValue(int i)

Specified by:

singleValue in interface ConstantMatrix

Overrides:

singleValue in class DenseMatrix

setSingle

public final void setSingle(int i,
                            double value)

singleSize

public final int singleSize()

Specified by:

singleSize in interface ConstantMatrix

Overrides:

singleSize in class DenseMatrix

cloneMatrix

public final ConstantMatrix cloneMatrix()

Specified by:

cloneMatrix in interface ConstantMatrix

Specified by:

cloneMatrix in class DenseMatrix

cloneMatrix2

public final Matrix2 cloneMatrix2()

setAll

public final void setAll(double v)

Specified by:

setAll in interface Matrix

Overrides:

setAll in class DenseMatrix

setAll

public final void setAll(double v,
                         FeatureSelection fselection,
                         boolean ifSelected)

If "ifSelected" is false, it reverses the selection. If "fselection" is null, this implies that all features are selected; all values will be changed unless "ifSelected" is false.

rowSetAll

public final void rowSetAll(int ri,
                            double v,
                            FeatureSelection fselection,
                            boolean ifSelected)

If "ifSelected" is false, it reverses the selection. If "fselection" is null, this implies that all features are selected; all values in the row will be changed unless "ifSelected" is false.

plusEquals

public final void plusEquals(int ri,
                             int ci,
                             double value)

rowPlusEquals

public final void rowPlusEquals(int ri,
                                Vector v,
                                double factor)

rowPlusEquals

public final void rowPlusEquals(int ri,
                                double v,
                                double factor)

columnPlusEquals

public final void columnPlusEquals(int ci,
                                   Vector v,
                                   double factor)

columnPlusEquals

public final void columnPlusEquals(int ci,
                                   double v,
                                   double factor)

rowDotProduct

public final double rowDotProduct(int ri,
                                  Vector v)

rowDotProduct

public final double rowDotProduct(int ri,
                                  Vector v,
                                  int maxCi,
                                  FeatureSelection selection)

Skip all column indices higher than "maxCi". This lets you store non-vocabulary based parameters in the high column indices, without fearing that they may later be included by accident if the dictionary grows. You may pass null for selection.

twoNormSquared

public final double twoNormSquared()

print

public void print()

Specified by:

print in interface ConstantMatrix

Overrides:

print in class DenseMatrix

toString

public String toString()

Overrides:

toString in class Object