com.twitter.algebird

CMSFunctions

object CMSFunctions

Helper functions to generate or to translate between various CMS parameters (cf. CMSParams).

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  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )
  8. def delta(depth: Int): Double

    Translates from depth to delta.

    Translates from depth to delta.

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    @throws( ... )
  9. def depth(delta: Double): Int

    Translates from delta to depth.

    Translates from delta to depth.

    Annotations
    @throws( "if delta is is not in (0, 1)" )
  10. def eps(width: Int): Double

    Translates from width to eps.

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

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  12. def equals(arg0: Any): Boolean

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  13. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  14. def generateHashes[K](eps: Double, delta: Double, seed: Int)(implicit arg0: CMSHasher[K]): Seq[CMSHash[K]]

    Generates N=depth pair-wise independent hash functions.

    Generates N=depth pair-wise independent hash functions.

    K

    The type used to identify the elements to be counted.

    eps

    One-sided error bound on the error of each point query, i.e. frequency estimate.

    delta

    Error bound on the probability that a query estimate does NOT lie within some small interval around the truth.

    seed

    Seed for the random number generator.

    returns

    The generated hash functions.

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

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  16. def hashCode(): Int

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  17. final def isInstanceOf[T0]: Boolean

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  18. def maxExactCount(maxExactCountOpt: Option[Int], depth: Int, width: Int): Int

    Compute maxExactCount from parameters or depth and width

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

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  20. final def notify(): Unit

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  21. final def notifyAll(): Unit

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

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  23. def toString(): String

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  24. final def wait(): Unit

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    @throws( ... )
  25. final def wait(arg0: Long, arg1: Int): Unit

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

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  27. def width(eps: Double): Int

    Translates from eps to width.

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