folds

Value Members

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

   

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2. final def ##(): Int

   

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

   

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4. def all[A](f: (A) ⇒ Boolean): Fold[NoFx, A, Boolean] { type S = Either[Boolean,Boolean] }

   
   returns

   return true if the list is empty or if all elements are true, use a Either state to indicate early failure

5. def any[A](f: (A) ⇒ Boolean): Fold[NoFx, A, Boolean] { type S = Either[Boolean,Boolean] }

   
   returns

   return false if the list is empty or if all elements are false, use a Either state to indicate early success

6. final def asInstanceOf[T0]: T0

   

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7. def clone(): AnyRef

   

   Attributes

   protected[java.lang]

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   @throws( ... )

8. def count[A]: FoldState[A, Int]

   
   returns

   fold to count elements

9. def countLong[A]: FoldState[A, Long]

   
   returns

   fold to count elements

10. def countLongOf[A](predicate: (A) ⇒ Boolean): FoldState[A, Long]

    
    returns

    fold to count elements

11. def countOf[A](predicate: (A) ⇒ Boolean): FoldState[A, Int]

    
    returns

    fold to count elements

12. def countUnique[A]: FoldId[A, Int]

    
    returns

    fold to count the number of unique elements

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

    

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14. def equals(arg0: Any): Boolean

    

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15. def finalize(): Unit

    

    Attributes

    protected[java.lang]

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

16. def first[A]: FoldState[A, Option[A]]

    
    returns

    the first element

17. def firstN[A](n: Int): Fold[NoFx, A, List[A]] { type S = scala.collection.mutable.ListBuffer[A] }

    
    returns

    the first n elements

18. def flips[A]: Fold[NoFx, A, Int] { type S = Int }

    
    returns

    the number of times an element changes its value

19. def flipsLong[A]: Fold[NoFx, A, Long] { type S = Long }

    
    returns

    the number of times an element changes its value

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

    

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21. def gradient[A, V](implicit arg0: Numeric[A], arg1: Numeric[V]): FoldId[(A, V), Double]

    
    returns

    gradient of a given variable A, compared to another V

22. def hashCode(): Int

    

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23. final def isInstanceOf[T0]: Boolean

    

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24. def last[A]: FoldState[A, Option[A]]

    
    returns

    the last element

25. def lastN[A](n: Int): Fold[NoFx, A, List[A]] { type S = scala.collection.mutable.ListBuffer[A] }

    
    returns

    the last n elements

26. def lift[A, U](f: (A) ⇒ U): Fold[NoFx, A, Option[U]] { type S = Option[A] }

    

    lift a function to a fold that applies f to the last element

27. def list[A]: Fold[NoFx, A, List[A]]

    
    returns

    a Fold which simply accumulates elements into a List

28. def mean[N](implicit arg0: Fractional[N]): FoldId[N, N] { type S = (N, Int) }

    
    returns

    the mean of elements

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

    

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30. final def notify(): Unit

    

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31. final def notifyAll(): Unit

    

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32. def onlineStddev[N](implicit arg0: Fractional[N]): FoldId[N, (Int, N, Double)]

    
    returns

    the number of elements, mean and standard deviation

33. def onlineUnbiasedVariance[N](implicit arg0: Fractional[N]): FoldId[N, (Int, N, N)]

    
    returns

    the number of elements, mean and unbiased variance

34. def onlineVariance[N](implicit arg0: Fractional[N]): FoldId[N, (Int, N, N)]

    
    returns

    the number of elements, mean and variance

35. def onlineVariation[N](implicit arg0: Fractional[N]): FoldId[N, (Int, N, N)]

    
    returns

    the number of elements, mean and variation

36. def plus[N](implicit arg0: Numeric[N]): FoldState[N, N]

    
    returns

    a plus fold from a Num

37. def plusBy[A, N](f: (A) ⇒ N)(implicit arg0: Numeric[N]): FoldState[A, N]

    
    returns

    a plus fold from a mapping to a Num

38. def proportion[A](predicate: (A) ⇒ Boolean): FoldId[A, Double]

    
    returns

    the proportion of elements satisfying a given predicate

39. def randomDouble[A]: Fold[NoFx, A, Option[Double]] { type S = (scala.util.Random, Option[Double]) }

    

    a fold where the current state is a random Double

40. def randomDoubleWithSeed[A](seed: Long): Fold[NoFx, A, Option[Double]] { type S = (scala.util.Random, Option[Double]) }

    

    a fold where the current state is a random Double

41. def randomInt[A]: Fold[NoFx, A, Option[Int]] { type S = (scala.util.Random, Option[Int]) }

    

    a fold where the current state is a random Int

42. def randomIntWithSeed[A](seed: Long): Fold[NoFx, A, Option[Int]] { type S = (scala.util.Random, Option[Int]) }

    

    a fold where the current state is a random Int

43. def randomWithGeneratorAndFunction[A, R](random: Random, f: (Random) ⇒ R): Fold[NoFx, A, Option[R]] { type S = (scala.util.Random, Option[R]) }

    

    create a fold for a mutable Random object

44. def reservoirSampling[A]: Fold[NoFx, A, Option[A]] { type S = (scala.util.Random, Int, Option[A]) }

    

    return an arbitrary streamed element so that each element has the same probability be chosen

45. def stddev[N](implicit arg0: Fractional[N]): FoldId[N, Double]

    
    returns

    the number of elements, mean and standard deviation

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

    

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47. def times[N](implicit arg0: Numeric[N]): FoldState[N, N]

    
    returns

    a times fold from a Num

48. def timesBy[A, N](f: (A) ⇒ N)(implicit arg0: Numeric[N]): FoldState[A, N]

    
    returns

    a times fold from a mapping to a Num

49. def toString(): String

    

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50. final def wait(): Unit

    

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    @throws( ... )

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

    

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    @throws( ... )

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

    

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    @throws( ... )