Value Members

1.  final def !=(arg0: Any): Boolean

   Definition Classes

   AnyRef → Any

2.  final def ##(): Int

   Definition Classes

   AnyRef → Any

3.  final def ==(arg0: Any): Boolean

   Definition Classes

   AnyRef → Any

4.  def apply(dataFrame: DataFrame, keyCol: String, valueCol: String, aggFunc: String): DataFrame

   Run aggregation within each partition without incurring a data shuffle.

   Run aggregation within each partition without incurring a data shuffle. Currently support three aggregates, sum, count, avg. If the aggregate func is count, this function doesn't require a value column. If the aggregate func is sum and avg, it will require a value column. They are same as the regular aggregation SQL

   SELECT pixel, COUNT(*) FROM t GROUP BY pixel

   SELECT pixel, AVG(weight) FROM t GROUP BY pixel

   SELECT pixel, AVG(weight) FROM t GROUP BY pixel

   keyCol

   GroupBy key

   valueCol

   Aggregate value

   aggFunc

   Aggregate function

5.  final def asInstanceOf[T0]: T0

   Definition Classes

   Any

6.  def clone(): AnyRef

   Attributes

   protected[lang]

   Definition Classes

   AnyRef

   Annotations

   @throws( ... ) @native()

7.  final def eq(arg0: AnyRef): Boolean

   Definition Classes

   AnyRef

8.  def equals(arg0: Any): Boolean

   Definition Classes

   AnyRef → Any

9.  def finalize(): Unit

   Attributes

   protected[lang]

   Definition Classes

   AnyRef

   Annotations

   @throws( classOf[java.lang.Throwable] )

10.  final def getClass(): Class[_]

    Definition Classes

    AnyRef → Any

    Annotations

    @native()

11.  def hashCode(): Int

    Definition Classes

    AnyRef → Any

    Annotations

    @native()

12.  final def isInstanceOf[T0]: Boolean

    Definition Classes

    Any

13.  final def ne(arg0: AnyRef): Boolean

    Definition Classes

    AnyRef

14.  final def notify(): Unit

    Definition Classes

    AnyRef

    Annotations

    @native()

15.  final def notifyAll(): Unit

    Definition Classes

    AnyRef

    Annotations

    @native()

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

    Definition Classes

    AnyRef

17.  def toString(): String

    Definition Classes

    AnyRef → Any

18.  final def wait(): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

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

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

20.  final def wait(arg0: Long): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... ) @native()