org.apache.ignite.ml.math.impls.matrix

Class DenseLocalOffHeapMatrix

java.lang.Object

org.apache.ignite.ml.math.impls.matrix.AbstractMatrix

org.apache.ignite.ml.math.impls.matrix.DenseLocalOffHeapMatrix

All Implemented Interfaces:

Externalizable, Serializable, Destroyable, Matrix, MetaAttributes, StorageOpsMetrics

public class DenseLocalOffHeapMatrix
extends AbstractMatrix

Dense local off-heap implementation of the Matrix interface.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.ignite.ml.math.Matrix

Matrix.Element

Constructor Summary

Constructors

Constructor and Description
DenseLocalOffHeapMatrix()
DenseLocalOffHeapMatrix(double[][] data)
DenseLocalOffHeapMatrix(int rows, int cols)

Method Summary

Modifier and Type	Method and Description
Matrix	copy() Clones this matrix.
Matrix	like(int rows, int cols) Creates new empty matrix of the same underlying class but of different size.
protected Matrix	likeIdentity()
Vector	likeVector(int crd) Creates new empty vector of compatible properties (similar or the same flavor) to this matrix.
Matrix	times(Matrix mtx) TODO: IGNITE-5535, WIP, currently it`s tmp naive impl.

Methods inherited from class org.apache.ignite.ml.math.impls.matrix.AbstractMatrix

allSpliterator, assign, assign, assign, assign, assignColumn, assignRow, columnSize, compute, density, destroy, determinant, divide, equals, foldColumns, foldMap, foldRows, get, getCol, getElement, getMaxAmountOfColumns, getMetaStorage, getRow, getStorage, getX, guid, hashCode, inverse, isArrayBased, isDense, isDistributed, isRandomAccess, isSequentialAccess, map, map, maxAbsRowSumNorm, maxElement, maxValue, minElement, minus, minValue, nonZeroElements, nonZeroSpliterator, plus, plus, readExternal, rowSize, set, setColumn, setRow, setStorage, setX, storageGet, storageSet, sum, swapColumns, swapRows, times, times, toString, transpose, viewColumn, viewDiagonal, viewPart, viewPart, viewRow, writeExternal

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.ml.math.MetaAttributes

getAttribute, hasAttribute, removeAttribute, setAttribute

Constructor Detail

DenseLocalOffHeapMatrix

public DenseLocalOffHeapMatrix()

DenseLocalOffHeapMatrix

public DenseLocalOffHeapMatrix(double[][] data)

Parameters:

data - Backing data array.

DenseLocalOffHeapMatrix

public DenseLocalOffHeapMatrix(int rows,
                               int cols)

Parameters:

rows - Amount of rows in matrix.

cols - Amount of columns in matrix.

Method Detail

copy

public Matrix copy()

Clones this matrix.

NOTE: new matrix will have the same flavor as the this matrix but a different ID.

Specified by:

copy in interface Matrix

Overrides:

copy in class AbstractMatrix

Returns:

New matrix of the same underlying class, the same size and the same values.

like

public Matrix like(int rows,
                   int cols)

Creates new empty matrix of the same underlying class but of different size.

NOTE: new matrix will have the same flavor as the this matrix but a different ID.

Parameters:

rows - Number of rows for new matrix.

cols - Number of columns for new matrix.

Returns:

New matrix of the same underlying class and size.

likeVector

public Vector likeVector(int crd)

Creates new empty vector of compatible properties (similar or the same flavor) to this matrix.

Parameters:

crd - Cardinality of the vector.

Returns:

Newly created empty vector "compatible" to this matrix.

likeIdentity

protected Matrix likeIdentity()

Overrides:

likeIdentity in class AbstractMatrix

times

public Matrix times(Matrix mtx)

TODO: IGNITE-5535, WIP, currently it`s tmp naive impl.

Specified by:

times in interface Matrix

Overrides:

times in class AbstractMatrix

Parameters:

mtx - Argument matrix.

Returns:

New matrix.