org.apache.flink.api.java.sampling

类 RandomSampler<T>

java.lang.Object

org.apache.flink.api.java.sampling.RandomSampler<T>

类型参数:

T - The type of sampler data.

直接已知子类:

BernoulliSampler, DistributedRandomSampler, PoissonSampler

@Internal
public abstract class RandomSampler<T>
extends Object

A data sample is a set of data selected from a statistical population by a defined procedure. RandomSampler helps to create data sample randomly.

字段概要

字段

限定符和类型	字段和说明
protected Iterator<T>	emptyIterable
protected static double	EPSILON

构造器概要

构造器

构造器和说明
RandomSampler()

方法概要

限定符和类型	方法和说明
abstract Iterator<T>	sample(Iterator<T> input) Randomly sample the elements from input in sequence, and return the result iterator.

从类继承的方法 java.lang.Object

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

字段详细资料

EPSILON

protected static final double EPSILON

另请参阅:

常量字段值

emptyIterable

protected final Iterator<T> emptyIterable

构造器详细资料

RandomSampler

public RandomSampler()

方法详细资料

sample

public abstract Iterator<T> sample(Iterator<T> input)

Randomly sample the elements from input in sequence, and return the result iterator.

参数:

input - Source data

返回:

The sample result.