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
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- RandomSampler
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- Pseudorandom
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Abstract Value Members
- abstract def sample(): Int
Whether to sample the next item or not.
Whether to sample the next item or not. Return how many times the next item will be sampled. Return 0 if it is not sampled.
- abstract def setSeed(seed: Long): Unit
Set random seed.
Set random seed.
- Definition Classes
- Pseudorandom
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): RandomSampler[T, U]
return a copy of the RandomSampler object
return a copy of the RandomSampler object
- Definition Classes
- RandomSampler → AnyRef
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
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- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- final def getClass(): Class[_ <: AnyRef]
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- Annotations
- @IntrinsicCandidate() @native()
- def hashCode(): Int
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- Annotations
- @IntrinsicCandidate() @native()
- final def isInstanceOf[T0]: Boolean
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- Any
- final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- @IntrinsicCandidate() @native()
- final def notifyAll(): Unit
- Definition Classes
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- Annotations
- @IntrinsicCandidate() @native()
- def sample(items: Iterator[T]): Iterator[U]
take a random sample
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
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- def toString(): String
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- final def wait(arg0: Long, arg1: Int): Unit
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- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
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- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
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- @throws(classOf[java.lang.InterruptedException])
Deprecated Value Members
- def finalize(): Unit
- Attributes
- protected[lang]
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- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated
(Since version 9)