org.isarnproject.sketches.udaf

TDigestReduceUDAF

case class TDigestReduceUDAF(deltaV: Double, maxDiscreteV: Int) extends UserDefinedAggregateFunction with Product with Serializable

A UDAF for aggregating (reducing) a column of t-digests. Expected to be created using tdigestReduceUDAF.

deltaV

The delta value to be used by the TDigest objects

maxDiscreteV

The maxDiscrete value to be used by the TDigest objects

Linear Supertypes
Product, Equals, UserDefinedAggregateFunction, Serializable, Serializable, AnyRef, Any
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Inherited
  1. TDigestReduceUDAF
  2. Product
  3. Equals
  4. UserDefinedAggregateFunction
  5. Serializable
  6. Serializable
  7. AnyRef
  8. Any
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Visibility
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Instance Constructors

  1. new TDigestReduceUDAF(deltaV: Double, maxDiscreteV: Int)

    deltaV

    The delta value to be used by the TDigest objects

    maxDiscreteV

    The maxDiscrete value to be used by the TDigest objects

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. def apply(exprs: Column*): Column

    Definition Classes
    UserDefinedAggregateFunction
    Annotations
    @varargs()

  7. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  8. def bufferSchema: StructType

    Definition Classes
    TDigestReduceUDAF → UserDefinedAggregateFunction

  9. def clone(): AnyRef

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

  10. def dataType: DataType

    Definition Classes
    TDigestReduceUDAF → UserDefinedAggregateFunction

  11. def delta(deltaP: Double): TDigestReduceUDAF

    customize the delta value to be used by the TDigest object

  12. val deltaV: Double

    The delta value to be used by the TDigest objects

  13. def deterministic: Boolean

    Definition Classes
    TDigestReduceUDAF → UserDefinedAggregateFunction

  14. def distinct(exprs: Column*): Column

    Definition Classes
    UserDefinedAggregateFunction
    Annotations
    @varargs()

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

    Definition Classes
    AnyRef

  16. def evaluate(buf: Row): Any

    Definition Classes
    TDigestReduceUDAF → UserDefinedAggregateFunction

  17. def finalize(): Unit

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

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

    Definition Classes
    AnyRef → Any

  19. def initialize(buf: MutableAggregationBuffer): Unit

    Definition Classes
    TDigestReduceUDAF → UserDefinedAggregateFunction

  20. def inputSchema: StructType

    Definition Classes
    TDigestReduceUDAF → UserDefinedAggregateFunction

  21. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  22. def maxDiscrete(maxDiscreteP: Int): TDigestReduceUDAF

    customize the maxDiscrete value to be used by the TDigest object

  23. val maxDiscreteV: Int

    The maxDiscrete value to be used by the TDigest objects

  24. def merge(buf1: MutableAggregationBuffer, buf2: Row): Unit

    Definition Classes
    TDigestReduceUDAF → UserDefinedAggregateFunction

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

    Definition Classes
    AnyRef

  26. final def notify(): Unit

    Definition Classes
    AnyRef

  27. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    AnyRef

  29. def update(buf: MutableAggregationBuffer, input: Row): Unit

    Definition Classes
    TDigestReduceUDAF → UserDefinedAggregateFunction

  30. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Product

Inherited from Equals

Inherited from UserDefinedAggregateFunction

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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