Trait/Object

com.twitter.algebird

Group

Related Docs: object Group | package algebird

Permalink

trait Group[T] extends Monoid[T]

Group: this is a monoid that also has subtraction (and negation): So, you can do (a-b), or -a (which is equal to 0 - a).

Annotations
@implicitNotFound( ... )
Source
Group.scala
Linear Supertypes
Monoid[T], Semigroup[T], Serializable, AnyRef, Any
Known Subclasses
AbstractField, AbstractGroup, AbstractRing, AdjoinedUnitRing, ApplicativeField, ApplicativeGroup, ApplicativeRing, ArrayGroup, AveragedGroup, BigDecimalRing, BigIntRing, BijectedField, BijectedGroup, BijectedRing, BooleanField, ConstantGroup, DoubleField, EventuallyGroup, EventuallyRing, Field, FloatField, GenericMapRing, IndexedSeqGroup, IndexedSeqRing, IntRing, JBoolField, JDoubleField, JFloatField, JIntRing, JLongRing, JShortRing, LongRing, MapGroup, MapRing, MinPlusSemiring, MomentsGroup, NullGroup, NumericRing, OptionGroup, Product10Group, Product10Ring, Product11Group, Product11Ring, Product12Group, Product12Ring, Product13Group, Product13Ring, Product14Group, Product14Ring, Product15Group, Product15Ring, Product16Group, Product16Ring, Product17Group, Product17Ring, Product18Group, Product18Ring, Product19Group, Product19Ring, Product20Group, Product20Ring, Product21Group, Product21Ring, Product22Group, Product22Ring, Product2Group, Product2Ring, Product3Group, Product3Ring, Product4Group, Product4Ring, Product5Group, Product5Ring, Product6Group, Product6Ring, Product7Group, Product7Ring, Product8Group, Product8Ring, Product9Group, Product9Ring, Ring, ScMapGroup, ScMapRing, ShortRing, StatisticsGroup, StatisticsRing, Tuple10Group, Tuple10Ring, Tuple11Group, Tuple11Ring, Tuple12Group, Tuple12Ring, Tuple13Group, Tuple13Ring, Tuple14Group, Tuple14Ring, Tuple15Group, Tuple15Ring, Tuple16Group, Tuple16Ring, Tuple17Group, Tuple17Ring, Tuple18Group, Tuple18Ring, Tuple19Group, Tuple19Ring, Tuple20Group, Tuple20Ring, Tuple21Group, Tuple21Ring, Tuple22Group, Tuple22Ring, Tuple2Group, Tuple2Ring, Tuple3Group, Tuple3Ring, Tuple4Group, Tuple4Ring, Tuple5Group, Tuple5Ring, Tuple6Group, Tuple6Ring, Tuple7Group, Tuple7Ring, Tuple8Group, Tuple8Ring, Tuple9Group, Tuple9Ring, UnitGroup
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Group
  2. Monoid
  3. Semigroup
  4. Serializable
  5. AnyRef
  6. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def plus(l: T, r: T): T

    Permalink

    Combines two T instances associatively.

    Combines two T instances associatively.

    returns

    result of combining l and r

    Definition Classes
    Semigroup

  2. abstract def zero: T

    Permalink

    Returns the identity element of T for plus.

    Returns the identity element of T for plus.

    Definition Classes
    Monoid

Concrete Value Members

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

    Permalink
    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Permalink
    Definition Classes
    AnyRef → Any

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

    Permalink
    Definition Classes
    AnyRef → Any

  4. final def asInstanceOf[T0]: T0

    Permalink
    Definition Classes
    Any

  5. def assertNotZero(v: T): Unit

    Permalink
    Definition Classes
    Monoid

  6. def clone(): AnyRef

    Permalink
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Permalink
    Definition Classes
    AnyRef

  8. def equals(arg0: Any): Boolean

    Permalink
    Definition Classes
    AnyRef → Any

  9. def finalize(): Unit

    Permalink
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

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

    Permalink
    Definition Classes
    AnyRef → Any

  11. def hashCode(): Int

    Permalink
    Definition Classes
    AnyRef → Any

  12. final def isInstanceOf[T0]: Boolean

    Permalink
    Definition Classes
    Any

  13. def isNonZero(v: T): Boolean

    Permalink
    Definition Classes
    Monoid

  14. def minus(l: T, r: T): T

    Permalink

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

    Permalink
    Definition Classes
    AnyRef

  16. def negate(v: T): T

    Permalink

  17. def nonZeroOption(v: T): Option[T]

    Permalink
    Definition Classes
    Monoid

  18. final def notify(): Unit

    Permalink
    Definition Classes
    AnyRef

  19. final def notifyAll(): Unit

    Permalink
    Definition Classes
    AnyRef

  20. def sum(vs: TraversableOnce[T]): T

    Permalink
    Definition Classes
    Monoid

  21. def sumOption(iter: TraversableOnce[T]): Option[T]

    Permalink

    Returns an instance of T calculated by summing all instances in iter in one pass.

    Returns an instance of T calculated by summing all instances in iter in one pass. Returns None if iter is empty, else Some[T].

    iter

    instances of T to be combined

    returns

    None if iter is empty, else an option value containing the summed T

    Definition Classes
    Semigroup
    Note

    Override if there is a faster way to compute this sum than iter.reduceLeftOption using plus.

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

    Permalink
    Definition Classes
    AnyRef

  23. def toString(): String

    Permalink
    Definition Classes
    AnyRef → Any

  24. final def wait(): Unit

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Permalink
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Monoid[T]

Inherited from Semigroup[T]

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped