org.apache.ignite.ml.util.generators.primitives.scalar

Class DiscreteRandomProducer

java.lang.Object

org.apache.ignite.ml.util.generators.primitives.scalar.DiscreteRandomProducer

All Implemented Interfaces:

Supplier<Double>, RandomProducer

public class DiscreteRandomProducer
extends Object

Pseudorandom producer generating values from user provided discrete distribution.

Constructor Summary

Constructors

Constructor and Description
DiscreteRandomProducer(double... probs) Creates an instance of DiscreteRandomProducer.
DiscreteRandomProducer(long seed, double... probs) Creates an instance of DiscreteRandomProducer.

Method Summary

Modifier and Type	Method and Description
protected Random	generator()
Double	get()
int	getInt()
static double[]	randomDistribution(int numOfValues) Generates pseudorandom discrete distribution.
static double[]	randomDistribution(int numOfValues, long seed) Generates pseudorandom discrete distribution.
int	size()
static DiscreteRandomProducer	uniform(int numOfValues) Creates a producer of random values from uniform discrete distribution.
static DiscreteRandomProducer	uniform(int numOfValues, long seed) Creates a producer of random values from uniform discrete distribution.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.ml.util.generators.primitives.scalar.RandomProducer

noizify, noizify, vectorize, vectorize

Constructor Detail

DiscreteRandomProducer

public DiscreteRandomProducer(double... probs)

Creates an instance of DiscreteRandomProducer.

Parameters:

probs - Discrete distribution probabilities.

DiscreteRandomProducer

public DiscreteRandomProducer(long seed,
                              double... probs)

Creates an instance of DiscreteRandomProducer.

Parameters:

seed - Seed.

probs - Discrete distribution probabilities.

Method Detail

uniform

public static DiscreteRandomProducer uniform(int numOfValues)

Creates a producer of random values from uniform discrete distribution.

Parameters:

numOfValues - Number of distinct values.

Returns:

Producer.

uniform

public static DiscreteRandomProducer uniform(int numOfValues,
                                             long seed)

Creates a producer of random values from uniform discrete distribution.

Parameters:

numOfValues - Number of distinct values.

seed - Seed.

Returns:

Producer.

randomDistribution

public static double[] randomDistribution(int numOfValues)

Generates pseudorandom discrete distribution.

Parameters:

numOfValues - Number of distinct values of pseudorandom variable.

Returns:

Probabilities array.

randomDistribution

public static double[] randomDistribution(int numOfValues,
                                          long seed)

Generates pseudorandom discrete distribution.

Parameters:

numOfValues - Number of distinct values of pseudorandom variable.

seed - Seed.

Returns:

Probabilities array.

get

public Double get()

getInt

public int getInt()

Returns:

Value of preudorandom discrete variable.

size

public int size()

Returns:

Count of distinct values of distribution.

generator

protected Random generator()

Returns:

Java preudorandom values generator.