org.apache.ignite.ml.math.impls.vector

Class RandomVector

java.lang.Object

org.apache.ignite.ml.math.impls.vector.AbstractVector

org.apache.ignite.ml.math.impls.vector.AbstractReadOnlyVector

org.apache.ignite.ml.math.impls.vector.RandomVector

All Implemented Interfaces:

Externalizable, Serializable, Destroyable, MetaAttributes, StorageOpsMetrics, Vector

public class RandomVector
extends AbstractReadOnlyVector

Random vector. Each value is taken from {-1,0,1} with roughly equal probability. Note that by default, the value is determined by a relatively simple hash of the index.

See Also:

Serialized Form

Nested Class Summary

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

Vector.Element

Constructor Summary

Constructors

Constructor and Description
RandomVector()
RandomVector(int size)
RandomVector(int size, boolean fastHash)
RandomVector(Map<String,Object> args)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
int	hashCode()
Vector	like(int crd) Creates new empty vector of the same underlying class but of different cardinality.
Matrix	likeMatrix(int rows, int cols) Creates new matrix of compatible flavor with given size.
void	readExternal(ObjectInput in)
void	writeExternal(ObjectOutput out)

Methods inherited from class org.apache.ignite.ml.math.impls.vector.AbstractReadOnlyVector

compute, copy, cross, divide, logNormalize, logNormalize, map, map, map, times, toMatrix, toMatrixPlusOne

Methods inherited from class org.apache.ignite.ml.math.impls.vector.AbstractVector

all, allSpliterator, assign, assign, assign, assign, checkCardinality, checkCardinality, checkCardinality, checkIndex, destroy, dot, dotSelf, foldMap, foldMap, get, getDistanceSquared, getElement, getLengthSquared, getMetaStorage, getStorage, getX, guid, increment, incrementX, isArrayBased, isDense, isDistributed, isRandomAccess, isSequentialAccess, isZero, kNorm, makeElement, maxElement, maxValue, minElement, minus, minValue, nonZeroElements, nonZeroes, nonZeroSpliterator, normalize, normalize, plus, plus, set, setStorage, setX, size, sort, storageGet, storageSet, sum, times, viewPart

Methods inherited from class java.lang.Object

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

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

getAttribute, hasAttribute, removeAttribute, setAttribute

Constructor Detail

RandomVector

public RandomVector(int size,
                    boolean fastHash)

Parameters:

size - Vector cardinality.

fastHash - Whether or not to use fast hashing or Murmur hashing.

RandomVector

public RandomVector(int size)

Parameters:

size - Vector cardinality.

RandomVector

public RandomVector(Map<String,Object> args)

Parameters:

args - Parameters to create new vector instance.

RandomVector

public RandomVector()

Method Detail

like

public Vector like(int crd)

Creates new empty vector of the same underlying class but of different cardinality.

Parameters:

crd - Cardinality for new vector.

Returns:

New vector.

likeMatrix

public Matrix likeMatrix(int rows,
                         int cols)

Creates new matrix of compatible flavor with given size.

Parameters:

rows - Number of rows.

cols - Number of columns.

Returns:

New matrix.

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class AbstractVector

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class AbstractVector

Throws:

IOException

ClassNotFoundException

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractVector

equals

public boolean equals(Object o)

Overrides:

equals in class AbstractVector