org.apache.spark.util.random

Class PoissonSampler<T>

Object

org.apache.spark.util.random.PoissonSampler<T>

All Implemented Interfaces:

java.io.Serializable, Cloneable, Pseudorandom, RandomSampler<T,T>

public class PoissonSampler<T>
extends Object
implements RandomSampler<T,T>

:: DeveloperApi :: A sampler based on values drawn from Poisson distribution.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PoissonSampler(double mean, cern.jet.random.Poisson poisson)

Method Summary

Methods

Modifier and Type	Method and Description
PoissonSampler<T>	clone()
cern.jet.random.Poisson	poisson()
scala.collection.Iterator<T>	sample(scala.collection.Iterator<T> items) take a random sample
void	setSeed(long seed) Set random seed.

Methods inherited from class Object

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

Constructor Detail

PoissonSampler

public PoissonSampler(double mean,
              cern.jet.random.Poisson poisson)

Method Detail

poisson

public cern.jet.random.Poisson poisson()

setSeed

public void setSeed(long seed)

Description copied from interface: Pseudorandom

Set random seed.

Specified by:

setSeed in interface Pseudorandom

sample

public scala.collection.Iterator<T> sample(scala.collection.Iterator<T> items)

Description copied from interface: RandomSampler

take a random sample

Specified by:

sample in interface RandomSampler<T,T>

clone

public PoissonSampler<T> clone()

Specified by:

clone in interface RandomSampler<T,T>

Overrides:

clone in class Object