Package org.la4j.matrix

Class RowMajorSparseMatrix

java.lang.Object

org.la4j.Matrix

org.la4j.matrix.SparseMatrix

org.la4j.matrix.RowMajorSparseMatrix

All Implemented Interfaces:

java.lang.Iterable<java.lang.Double>

Direct Known Subclasses:

CRSMatrix

public abstract class RowMajorSparseMatrix
extends SparseMatrix

Field Summary

Fields inherited from class org.la4j.matrix.SparseMatrix

cardinality

Fields inherited from class org.la4j.Matrix

columns, rows

Constructor Summary

Constructors

Constructor	Description
RowMajorSparseMatrix(int rows, int columns)
RowMajorSparseMatrix(int rows, int columns, int cardinality)

Method Summary

Modifier and Type	Method	Description
<T> T	apply(MatrixMatrixOperation<T> operation, Matrix that)	Pipes this matrix to a given operation.
<T> T	apply(MatrixOperation<T> operation)	Pipes this matrix to a given operation.
<T> T	apply(MatrixVectorOperation<T> operation, Vector that)	Pipes this matrix to a given operation.
static RowMajorSparseMatrix	block(Matrix a, Matrix b, Matrix c, Matrix d)	Creates a block RowMajorSparseMatrix of the given blocks a, b, c and d.
static RowMajorSparseMatrix	diagonal(int size, double diagonal)	Creates a diagonal RowMajorSparseMatrix of the given size whose diagonal elements are equal to diagonal.
static RowMajorSparseMatrix	from1DArray(int rows, int columns, double[] array)	Creates a new RowMajorSparseMatrix from the given 1D array with compressing (copying) the underlying array.
static RowMajorSparseMatrix	from2DArray(double[][] array)	Creates a new RowMajorSparseMatrix from the given 2D array with compressing (copying) the underlying array.
static RowMajorSparseMatrix	fromCSV(java.lang.String csv)	Parses RowMajorSparseMatrix from the given CSV string.
static RowMajorSparseMatrix	fromMatrixMarket(java.lang.String mm)	Parses RowMajorSparseMatrix from the given Matrix Market string.
static RowMajorSparseMatrix	identity(int size)	Creates an identity RowMajorSparseMatrix of the given size.
boolean	isRowMajor()	Checks whether or not this sparse matrix row-major.
abstract java.util.Iterator<java.lang.Integer>	iteratorOfNonZeroRows()
static RowMajorSparseMatrix	random(int rows, int columns, double density, java.util.Random random)	Creates a random RowMajorSparseMatrix of the given shape: rows x columns.
static RowMajorSparseMatrix	randomSymmetric(int size, double density, java.util.Random random)	Creates a random symmetric RowMajorSparseMatrix of the given size.
Matrix	rotate()	Rotates this matrix by 90 degrees to the right.
Matrix	transpose()	Transposes this matrix.
static RowMajorSparseMatrix	zero(int rows, int columns)	Creates a zero RowMajorSparseMatrix of the given shape: rows x columns.
static RowMajorSparseMatrix	zero(int rows, int columns, int capacity)	Creates a zero RowMajorSparseMatrix of the given shape: rows x columns with the given capacity.

Methods inherited from class org.la4j.matrix.SparseMatrix

add, capacity, cardinality, density, eachNonZero, eachNonZeroInColumn, eachNonZeroInRow, ensureCardinalityIsCorrect, foldNonZero, foldNonZeroInColumn, foldNonZeroInColumns, foldNonZeroInRow, foldNonZeroInRows, get, getColumn, getOrElse, getRow, isColumnMajor, isZeroAt, multiply, nonZeroAt, nonZeroColumnMajorIterator, nonZeroIterator, nonZeroIteratorOfColumn, nonZeroIteratorOfRow, nonZeroRowMajorIterator, toMatrixMarket

Methods inherited from class org.la4j.Matrix

add, blank, blankOfColumns, blankOfRows, blankOfShape, columnMajorIterator, columns, constant, copy, copyOfColumns, copyOfRows, copyOfShape, determinant, diagonalProduct, divide, each, eachInColumn, eachInRow, ensureDimensionsAreCorrect, ensureIndexesAreInBounds, equals, equals, euclideanNorm, fail, fold, foldColumn, foldColumns, foldRow, foldRows, hadamardProduct, hashCode, infinityNorm, insert, insert, insert, insert, insertColumn, insertRow, is, is, iterator, iteratorOfColumn, iteratorOfRow, kroneckerProduct, manhattanNorm, max, maxInColumn, maxInRow, min, minInColumn, minInRow, mkString, mkString, mkString, multiply, multiply, multiplyByItsTranspose, non, non, norm, power, product, random, randomSymmetric, rank, removeColumn, removeFirstColumn, removeFirstRow, removeLastColumn, removeLastRow, removeRow, rowMajorIterator, rows, select, set, setAll, setColumn, setColumn, setRow, setRow, shuffle, slice, sliceBottomRight, sliceTopLeft, subtract, subtract, sum, swapColumns, swapRows, to, toBinary, toColumnMajorSparseMatrix, toColumnVector, toCSV, toCSV, toDenseMatrix, toMatrixMarket, toRowMajorSparseMatrix, toRowVector, toSparseMatrix, toString, trace, transform, transformColumn, transformRow, unit, update, updateAt, updateColumn, updateRow, withDecompositor, withInverter, withSolver

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

RowMajorSparseMatrix

public RowMajorSparseMatrix(int rows,
                            int columns)

RowMajorSparseMatrix

public RowMajorSparseMatrix(int rows,
                            int columns,
                            int cardinality)

Method Detail

zero

public static RowMajorSparseMatrix zero(int rows,
                                        int columns)

Creates a zero RowMajorSparseMatrix of the given shape: rows x columns.

zero

public static RowMajorSparseMatrix zero(int rows,
                                        int columns,
                                        int capacity)

Creates a zero RowMajorSparseMatrix of the given shape: rows x columns with the given capacity.

diagonal

public static RowMajorSparseMatrix diagonal(int size,
                                            double diagonal)

Creates a diagonal RowMajorSparseMatrix of the given size whose diagonal elements are equal to diagonal.

identity

public static RowMajorSparseMatrix identity(int size)

Creates an identity RowMajorSparseMatrix of the given size.

random

public static RowMajorSparseMatrix random(int rows,
                                          int columns,
                                          double density,
                                          java.util.Random random)

Creates a random RowMajorSparseMatrix of the given shape: rows x columns.

randomSymmetric

public static RowMajorSparseMatrix randomSymmetric(int size,
                                                   double density,
                                                   java.util.Random random)

Creates a random symmetric RowMajorSparseMatrix of the given size.

from1DArray

public static RowMajorSparseMatrix from1DArray(int rows,
                                               int columns,
                                               double[] array)

Creates a new RowMajorSparseMatrix from the given 1D array with compressing (copying) the underlying array.

from2DArray

public static RowMajorSparseMatrix from2DArray(double[][] array)

Creates a new RowMajorSparseMatrix from the given 2D array with compressing (copying) the underlying array.

block

public static RowMajorSparseMatrix block(Matrix a,
                                         Matrix b,
                                         Matrix c,
                                         Matrix d)

Creates a block RowMajorSparseMatrix of the given blocks a, b, c and d.

fromCSV

public static RowMajorSparseMatrix fromCSV(java.lang.String csv)

Parses RowMajorSparseMatrix from the given CSV string.

Parameters:

csv - the CSV string representing a matrix

Returns:

a parsed matrix

fromMatrixMarket

public static RowMajorSparseMatrix fromMatrixMarket(java.lang.String mm)

Parses RowMajorSparseMatrix from the given Matrix Market string.

Parameters:

mm - the string in Matrix Market format

Returns:

a parsed matrix

isRowMajor

public boolean isRowMajor()

Description copied from class: SparseMatrix

Checks whether or not this sparse matrix row-major.

Specified by:

isRowMajor in class SparseMatrix

transpose

public Matrix transpose()

Description copied from class: Matrix

Transposes this matrix.

Overrides:

transpose in class Matrix

Returns:

the transposed matrix

rotate

public Matrix rotate()

Description copied from class: Matrix

Rotates this matrix by 90 degrees to the right.

Overrides:

rotate in class Matrix

Returns:

the rotated matrix

iteratorOfNonZeroRows

public abstract java.util.Iterator<java.lang.Integer> iteratorOfNonZeroRows()

apply

public <T> T apply(MatrixOperation<T> operation)

Description copied from class: Matrix

Pipes this matrix to a given operation.

Specified by:

apply in class Matrix

Type Parameters:

T - the result type

Parameters:

operation - the matrix operation (an operation that takes a matrix and returns T)

Returns:

the result of an operation applied to this matrix

apply

public <T> T apply(MatrixMatrixOperation<T> operation,
                   Matrix that)

Description copied from class: Matrix

Pipes this matrix to a given operation.

Specified by:

apply in class Matrix

Type Parameters:

T - the result type

Parameters:

operation - the matrix-matrix operation (an operation that takes two matrices and returns T)

that - the right hand matrix of the given operation

Returns:

the result of an operation applied to this matrix

apply

public <T> T apply(MatrixVectorOperation<T> operation,
                   Vector that)

Description copied from class: Matrix

Pipes this matrix to a given operation.

Specified by:

apply in class Matrix

Type Parameters:

T - the result type

Parameters:

operation - the matrix-vector operation (an operation that takes matrix and vector and returns T)

that - the right hand vector of the given operation

Returns:

the result of an operation applied to this matrix