org.nd4j.rng

Class NativeRandom

java.lang.Object

org.nd4j.rng.NativeRandom

All Implemented Interfaces:

AutoCloseable, Random

public abstract class NativeRandom
extends Object
implements Random

Basic NativeRandom implementation

Author:

raver119@gmail.com

Field Summary

Fields

Modifier and Type	Field and Description
protected AtomicLong	currentPosition
protected boolean	generated
protected double	mean
protected NativeOps	nativeOps
protected long	seed
protected org.bytedeco.javacpp.Pointer	statePointer
protected double	stdDev
protected double	u0
protected double	u1
protected double	z0
protected double	z1

Constructor Summary

Constructors

Constructor and Description
NativeRandom()
NativeRandom(long seed)
NativeRandom(long seed, long numberOfElements)

Method Summary

Modifier and Type	Method and Description
void	close()
abstract org.bytedeco.javacpp.PointerPointer	getExtraPointers()
long	getPosition()
org.bytedeco.javacpp.Pointer	getStatePointer() This method returns pointer to RNG state structure.
abstract void	init()
boolean	nextBoolean()
void	nextBytes(byte[] bytes)
double	nextDouble()
INDArray	nextDouble(char order, int[] shape)
INDArray	nextDouble(char order, long[] shape)
INDArray	nextDouble(int[] shape)
INDArray	nextDouble(long[] shape)
float	nextFloat()
INDArray	nextFloat(char order, int[] shape)
INDArray	nextFloat(char order, long[] shape)
INDArray	nextFloat(int[] shape)
INDArray	nextFloat(long[] shape)
double	nextGaussian()
INDArray	nextGaussian(char order, int[] shape)
INDArray	nextGaussian(char order, long[] shape)
INDArray	nextGaussian(int[] shape)
INDArray	nextGaussian(long[] shape)
int	nextInt(int to)
INDArray	nextInt(int[] shape)
int	nextInt(int a, int n)
INDArray	nextInt(int n, int[] shape)
INDArray	nextInt(int n, long[] shape)
INDArray	nextInt(long[] shape)
void	reSeed()
void	reSeed(long amplifier)
void	setSeed(int seed)
void	setSeed(int[] seed)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.nd4j.linalg.api.rng.Random

getSeed, nextInt, nextLong, nodeState, rootState, setSeed, setStates

Field Detail

nativeOps

protected NativeOps nativeOps

statePointer

protected org.bytedeco.javacpp.Pointer statePointer

currentPosition

protected AtomicLong currentPosition

z0

protected double z0

z1

protected double z1

u0

protected double u0

u1

protected double u1

generated

protected boolean generated

mean

protected double mean

stdDev

protected double stdDev

seed

protected long seed

Constructor Detail

NativeRandom

public NativeRandom()

NativeRandom

public NativeRandom(long seed)

NativeRandom

public NativeRandom(long seed,
                    long numberOfElements)

Method Detail

init

public abstract void init()

setSeed

public void setSeed(int seed)

Specified by:

setSeed in interface Random

setSeed

public void setSeed(int[] seed)

Specified by:

setSeed in interface Random

nextBytes

public void nextBytes(byte[] bytes)

Specified by:

nextBytes in interface Random

nextInt

public int nextInt(int to)

Specified by:

nextInt in interface Random

nextInt

public int nextInt(int a,
                   int n)

Specified by:

nextInt in interface Random

getExtraPointers

public abstract org.bytedeco.javacpp.PointerPointer getExtraPointers()

nextBoolean

public boolean nextBoolean()

Specified by:

nextBoolean in interface Random

nextFloat

public float nextFloat()

Specified by:

nextFloat in interface Random

nextDouble

public double nextDouble()

Specified by:

nextDouble in interface Random

nextGaussian

public double nextGaussian()

Specified by:

nextGaussian in interface Random

nextGaussian

public INDArray nextGaussian(int[] shape)

Specified by:

nextGaussian in interface Random

nextGaussian

public INDArray nextGaussian(long[] shape)

Specified by:

nextGaussian in interface Random

nextGaussian

public INDArray nextGaussian(char order,
                             int[] shape)

Specified by:

nextGaussian in interface Random

nextGaussian

public INDArray nextGaussian(char order,
                             long[] shape)

Specified by:

nextGaussian in interface Random

nextDouble

public INDArray nextDouble(int[] shape)

Specified by:

nextDouble in interface Random

nextDouble

public INDArray nextDouble(long[] shape)

Specified by:

nextDouble in interface Random

nextDouble

public INDArray nextDouble(char order,
                           int[] shape)

Specified by:

nextDouble in interface Random

nextDouble

public INDArray nextDouble(char order,
                           long[] shape)

Specified by:

nextDouble in interface Random

nextFloat

public INDArray nextFloat(int[] shape)

Specified by:

nextFloat in interface Random

nextFloat

public INDArray nextFloat(long[] shape)

Specified by:

nextFloat in interface Random

nextFloat

public INDArray nextFloat(char order,
                          int[] shape)

Specified by:

nextFloat in interface Random

nextFloat

public INDArray nextFloat(char order,
                          long[] shape)

Specified by:

nextFloat in interface Random

nextInt

public INDArray nextInt(int[] shape)

Specified by:

nextInt in interface Random

nextInt

public INDArray nextInt(long[] shape)

Specified by:

nextInt in interface Random

nextInt

public INDArray nextInt(int n,
                        int[] shape)

Specified by:

nextInt in interface Random

nextInt

public INDArray nextInt(int n,
                        long[] shape)

Specified by:

nextInt in interface Random

getStatePointer

public org.bytedeco.javacpp.Pointer getStatePointer()

This method returns pointer to RNG state structure. Please note: DefaultRandom implementation returns NULL here, making it impossible to use with RandomOps

Specified by:

getStatePointer in interface Random

Returns:

reSeed

public void reSeed()

Specified by:

reSeed in interface Random

reSeed

public void reSeed(long amplifier)

Specified by:

reSeed in interface Random

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

getPosition

public long getPosition()

Specified by:

getPosition in interface Random