org.apache.spark.util.random

RandomSampler

trait RandomSampler[T, U] extends Pseudorandom with Cloneable with Serializable

:: DeveloperApi :: A pseudorandom sampler. It is possible to change the sampled item type. For example, we might want to add weights for stratified sampling or importance sampling. Should only use transformations that are tied to the sampler and cannot be applied after sampling.

T

item type

U

sampled item type

Annotations
@DeveloperApi()
Source
RandomSampler.scala
Linear Supertypes
Serializable, Serializable, Cloneable, Cloneable, Pseudorandom, AnyRef, Any
Known Subclasses
BernoulliCellSampler, BernoulliSampler, PoissonSampler
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Inherited
  1. RandomSampler
  2. Serializable
  3. Serializable
  4. Cloneable
  5. Cloneable
  6. Pseudorandom
  7. AnyRef
  8. Any
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Abstract Value Members

  1. abstract def sample(items: Iterator[T]): Iterator[U]

    take a random sample

  2. abstract def setSeed(seed: Long): Unit

    Set random seed.

    Set random seed.

    Definition Classes
    Pseudorandom

Concrete Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any

  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  7. def clone(): RandomSampler[T, U]

    return a copy of the RandomSampler object

    return a copy of the RandomSampler object

    Definition Classes
    RandomSampler → AnyRef

  8. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  9. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  10. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  11. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  12. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  13. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  14. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  15. final def notify(): Unit

    Definition Classes
    AnyRef

  16. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  17. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  18. def toString(): String

    Definition Classes
    AnyRef → Any

  19. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  20. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  21. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from Cloneable

Inherited from Cloneable

Inherited from Pseudorandom

Inherited from AnyRef

Inherited from Any

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