folds

Value Members

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

   

   Definition Classes

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2. final def ##(): Int

   

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

   

   Definition Classes

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4. def all[A](f: (A) ⇒ Boolean): FoldId[A, Boolean] { ... /* 2 definitions in type refinement */ }

   
   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): FoldId[A, Boolean] { ... /* 2 definitions in type refinement */ }

   
   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

   

   Definition Classes

   Any

7. def average[A](implicit f: Fractional[A]): Fold[Id, A, A]

   
   returns

   the average of all elements

8. def clone(): AnyRef

   

   Attributes

   protected[java.lang]

   Definition Classes

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   Annotations

   @throws( ... )

9. def const[A, B](b: ⇒ B): Fold[[A]A, A, B] { ... /* 2 definitions in type refinement */ }

   

   constant fold returning the same value at the end

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

    
    returns

    fold to count elements

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

    
    returns

    fold to count elements

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

    
    returns

    fold to count elements

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

    
    returns

    fold to count elements

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

    
    returns

    fold to count the number of unique elements

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

    

    Definition Classes

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16. def equals(arg0: Any): Boolean

    

    Definition Classes

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17. def finalize(): Unit

    

    Attributes

    protected[java.lang]

    Definition Classes

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    Annotations

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

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

    
    returns

    the first element

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

    
    returns

    the first n elements

20. def flips[A]: FoldId[A, Int] { type S = Int }

    
    returns

    the number of times an element changes its value

21. def flipsLong[A]: FoldId[A, Long] { type S = Long }

    
    returns

    the number of times an element changes its value

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

    

    Definition Classes

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23. 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

24. def hashCode(): Int

    

    Definition Classes

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25. final def isInstanceOf[T0]: Boolean

    

    Definition Classes

    Any

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

    
    returns

    the last element

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

    
    returns

    the last n elements

28. def lift[A, U](f: (A) ⇒ U): Fold[[A]A, A, Option[U]] { ... /* 2 definitions in type refinement */ }

    

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

29. def list[A]: FoldId[A, List[A]]

    
    returns

    a Fold which simply accumulates elements into a List

30. def maximum[A](implicit arg0: Ordering[A]): FoldState[A, Option[A]]

    
    returns

    the minimum element

31. def mean[N](implicit arg0: Fractional[N]): Fold[Id, N, N] { type S = (N, Int) }

    
    returns

    the mean of elements

32. def minimum[A](implicit arg0: Ordering[A]): FoldState[A, Option[A]]

    
    returns

    the maximum element

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

    

    Definition Classes

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34. final def notify(): Unit

    

    Definition Classes

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35. final def notifyAll(): Unit

    

    Definition Classes

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36. def onlineStddev[N](implicit arg0: Fractional[N]): Fold[Id, N, (Int, N, Double)]

    
    returns

    the number of elements, mean and standard deviation

37. def onlineUnbiasedVariance[N](implicit arg0: Fractional[N]): Fold[Id, N, (Int, N, N)]

    
    returns

    the number of elements, mean and unbiased variance

38. def onlineVariance[N](implicit arg0: Fractional[N]): Fold[Id, N, (Int, N, N)]

    
    returns

    the number of elements, mean and variance

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

    
    returns

    the number of elements, mean and variation

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

    
    returns

    a plus fold from a Num

41. def plusBy[A, N](f: (A) ⇒ N)(implicit arg0: Numeric[N]): Fold[Id, A, N] { type S = N }

    
    returns

    a plus fold from a mapping to a Num

42. def proportion[A](predicate: (A) ⇒ Boolean): Fold[Id, A, Double]

    
    returns

    the proportion of elements satisfying a given predicate

43. def randomDouble[A]: FoldId[A, Option[Double]] { ... /* 2 definitions in type refinement */ }

    

    a fold where the current state is a random Double

44. def randomDoubleWithSeed[A](seed: Long): FoldId[A, Option[Double]] { ... /* 2 definitions in type refinement */ }

    

    a fold where the current state is a random Double

45. def randomInt[A]: FoldId[A, Option[Int]] { ... /* 2 definitions in type refinement */ }

    

    a fold where the current state is a random Int

46. def randomIntWithSeed[A](seed: Long): FoldId[A, Option[Int]] { ... /* 2 definitions in type refinement */ }

    

    a fold where the current state is a random Int

47. def randomWithGeneratorAndFunction[A, R](random: Random, f: (Random) ⇒ R): FoldId[A, Option[R]] { ... /* 2 definitions in type refinement */ }

    

    create a fold for a mutable Random object

48. def reservoirSampling[A]: FoldId[A, Option[A]] { ... /* 2 definitions in type refinement */ }

    

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

49. def stddev[N](implicit arg0: Fractional[N]): Fold[Id, N, Double]

    
    returns

    the number of elements, mean and standard deviation

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

    

    Definition Classes

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

    
    returns

    a times fold from a Num

52. def timesBy[A, N](f: (A) ⇒ N)(implicit arg0: Numeric[N]): Fold[Id, A, N] { type S = N }

    
    returns

    a times fold from a mapping to a Num

53. def toString(): String

    

    Definition Classes

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54. final def wait(): Unit

    

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    Annotations

    @throws( ... )

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

    

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    @throws( ... )

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

    

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    @throws( ... )