org.apache.flink.ml.math

Class DenseMatrix

java.lang.Object

org.apache.flink.ml.math.DenseMatrix

All Implemented Interfaces:

Serializable, Matrix, scala.Equals, scala.Product

public class DenseMatrix
extends Object
implements Matrix, scala.Serializable, scala.Product

Dense matrix implementation of Matrix. Stores data in column major order in a continuous double array.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DenseMatrix(int numRows, int numCols, double[] data)

Method Summary

Modifier and Type	Method and Description
double	apply(int row, int col) Element wise access function
DenseMatrix	copy() Copies the matrix instance
double[]	data()
boolean	equals(Object obj)
static DenseMatrix	eye(int numRows, int numCols)
int	hashCode()
static int	LINE_WIDTH()
static int	MAX_ROWS()
int	numCols() Number of columns
int	numRows() Number of rows
SparseMatrix	toSparseMatrix()
String	toString()
void	update(int row, int col, double value) Element wise update function
static DenseMatrix	zeros(int numRows, int numCols)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.ml.math.Matrix

equalsMatrix

Methods inherited from interface scala.Product

productArity, productElement, productIterator, productPrefix

Methods inherited from interface scala.Equals

canEqual

Constructor Detail

DenseMatrix

public DenseMatrix(int numRows,
                   int numCols,
                   double[] data)

Method Detail

LINE_WIDTH

public static int LINE_WIDTH()

MAX_ROWS

public static int MAX_ROWS()

zeros

public static DenseMatrix zeros(int numRows,
                                int numCols)

eye

public static DenseMatrix eye(int numRows,
                              int numCols)

numRows

public int numRows()

Description copied from interface: Matrix

Number of rows

Specified by:

numRows in interface Matrix

Returns:

numCols

public int numCols()

Description copied from interface: Matrix

Number of columns

Specified by:

numCols in interface Matrix

Returns:

data

public double[] data()

apply

public double apply(int row,
                    int col)

Element wise access function

Specified by:

apply in interface Matrix

Parameters:

row - row index

col - column index

Returns:

matrix entry at (row, col)

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Specified by:

equals in interface scala.Equals

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

update

public void update(int row,
                   int col,
                   double value)

Element wise update function

Specified by:

update in interface Matrix

Parameters:

row - row index

col - column index

value - value to set at (row, col)

toSparseMatrix

public SparseMatrix toSparseMatrix()

copy

public DenseMatrix copy()

Copies the matrix instance

Specified by:

copy in interface Matrix

Returns:

Copy of itself