com.twitter.algebird

Group

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( ... )
Linear Supertypes
Monoid[T], Semigroup[T], Serializable, AnyRef, Any
Known Subclasses
AbstractField, AbstractGroup, AbstractRing, AdjoinedUnitRing, ApplicativeField, ApplicativeGroup, ApplicativeRing, ArrayGroup, AveragedGroup, BigDecimalRing, BigIntRing, 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
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
Learn more about member selection
Visibility
  1. Public
  2. All

Abstract Value Members

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

    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

    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: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  7. def assertNotZero(v: T): Unit

    Definition Classes
    Monoid

  8. def clone(): AnyRef

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

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

    Definition Classes
    AnyRef

  10. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  11. def finalize(): Unit

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

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

    Definition Classes
    AnyRef → Any

  13. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  14. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  15. def isNonZero(v: T): Boolean

    Definition Classes
    Monoid

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

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

    Definition Classes
    AnyRef

  18. def negate(v: T): T

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

    Definition Classes
    Monoid

  20. final def notify(): Unit

    Definition Classes
    AnyRef

  21. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    Monoid

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

    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.

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

    Definition Classes
    AnyRef

  25. def toString(): String

    Definition Classes
    AnyRef → Any

  26. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Monoid[T]

Inherited from Semigroup[T]

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped