Packages

class StatCounter extends Serializable

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.

Source
StatCounter.scala
Linear Supertypes
Serializable, Serializable, AnyRef, Any
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Inherited
  1. StatCounter
  2. Serializable
  3. Serializable
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new StatCounter()

    Initialize the StatCounter with no values.

  2. new StatCounter(values: TraversableOnce[Double])

    Initialize the StatCounter with the given values.

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. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  6. def copy(): StatCounter

    Clone this StatCounter

  7. def count: Long
  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[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  11. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  14. def max: Double
  15. def mean: Double
  16. def merge(other: StatCounter): StatCounter

    Merge another StatCounter into this one, adding up the internal statistics.

  17. def merge(values: TraversableOnce[Double]): StatCounter

    Add multiple values into this StatCounter, updating the internal statistics.

  18. def merge(value: Double): StatCounter

    Add a value into this StatCounter, updating the internal statistics.

  19. def min: Double
  20. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  21. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  22. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  23. def popStdev: Double

    Return the population standard deviation of the values.

    Return the population standard deviation of the values.

    Annotations
    @Since( "2.1.0" )
  24. def popVariance: Double

    Return the population variance of the values.

    Return the population variance of the values.

    Annotations
    @Since( "2.1.0" )
  25. def sampleStdev: Double

    Return the sample standard deviation of the values, which corrects for bias in estimating the variance by dividing by N-1 instead of N.

  26. def sampleVariance: Double

    Return the sample variance, which corrects for bias in estimating the variance by dividing by N-1 instead of N.

  27. def stdev: Double

    Return the population standard deviation of the values.

  28. def sum: Double
  29. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  30. def toString(): String
    Definition Classes
    StatCounter → AnyRef → Any
  31. def variance: Double

    Return the population variance of the values.

  32. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  33. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  34. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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