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 averageDouble[A](implicit n: Numeric[A]): Fold[Id, A, Double]

   
   returns

   the average of all elements

9. def clone(): AnyRef

   

   Attributes

   protected[java.lang]

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   @throws( ... )

10. 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

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

    
    returns

    fold to count elements

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

    
    returns

    fold to count elements

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

    
    returns

    fold to count elements

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

    
    returns

    fold to count elements

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

    
    returns

    fold to count the number of unique elements

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

    

    Definition Classes

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17. def equals(arg0: Any): Boolean

    

    Definition Classes

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18. def finalize(): Unit

    

    Attributes

    protected[java.lang]

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    Annotations

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

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

    
    returns

    the first element

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

    
    returns

    the first n elements

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

    
    returns

    the number of times an element changes its value

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

    
    returns

    the number of times an element changes its value

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

    

    Definition Classes

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24. 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

25. def hashCode(): Int

    

    Definition Classes

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26. final def isInstanceOf[T0]: Boolean

    

    Definition Classes

    Any

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

    
    returns

    the last element

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

    
    returns

    the last n elements

29. 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

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

    
    returns

    a Fold which simply accumulates elements into a List

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

    
    returns

    the minimum element

32. def maximumOr[A](default: A)(implicit arg0: Ordering[A]): Fold[Id, A, A]

    
    returns

    the maximum element or a default value

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

    
    returns

    the mean of elements

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

    
    returns

    the minimum element

35. def minimumOr[A](default: A)(implicit arg0: Ordering[A]): Fold[Id, A, A]

    
    returns

    the minimum element or a default value

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

    

    Definition Classes

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37. final def notify(): Unit

    

    Definition Classes

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38. final def notifyAll(): Unit

    

    Definition Classes

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

    
    returns

    the number of elements, mean and standard deviation

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

    
    returns

    the number of elements, mean and unbiased variance

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

    
    returns

    the number of elements, mean and variance

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

    
    returns

    the number of elements, mean and variation

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

    
    returns

    a plus fold from a Num

44. 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

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

    
    returns

    the proportion of elements satisfying a given predicate

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

    

    a fold where the current state is a random Double

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

    

    a fold where the current state is a random Double

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

    

    a fold where the current state is a random Int

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

    

    a fold where the current state is a random Int

50. 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

51. 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

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

    
    returns

    the number of elements, mean and standard deviation

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

    

    Definition Classes

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

    
    returns

    a times fold from a Num

55. 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

56. def toString(): String

    

    Definition Classes

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57. final def wait(): Unit

    

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    @throws( ... )

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

    

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    @throws( ... )

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

    

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    @throws( ... )