:: DeveloperApi :: A tuple of 2 elements.
:: DeveloperApi :: A tuple of 2 elements. This can be used as an alternative to Scala's Tuple2 when we want to minimize object allocation.
Element 1 of this MutablePair
Element 2 of this MutablePair
A class for tracking the statistics of a set of numbers (count, mean and variance) in a numerically robust way.
A class for tracking the statistics of a set of numbers (count, mean and variance) in a numerically robust way. Includes support for merging two StatCounters. Based on Welford and Chan's algorithms for running variance.
:: DeveloperApi ::
:: DeveloperApi ::
Listener providing a callback function to invoke when a task's execution completes.
(Since version 1.0.0) Use Vectors.dense from Spark's mllib.linalg package instead.
Utilities for random number generation.
Spark utilities.