Class

com.twitter.algebird

ArrayMonoid

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class ArrayMonoid[T] extends Monoid[Array[T]]

Pair-wise sum Array monoid.

plus returns left[i] + right[i] for all array elements. The resulting array will be as long as the longest array (with its elements duplicated) zero is an empty array

Source: Monoid.scala

Linear Supertypes

Monoid[Array[T]], Semigroup[Array[T]], Serializable, AnyRef, Any

Known Subclasses

Type Hierarchy

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ArrayMonoid
Monoid
Semigroup
Serializable
AnyRef
Any

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Visibility

Public
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Instance Constructors

new ArrayMonoid()(implicit arg0: ClassTag[T], semi: Semigroup[T])

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def assertNotZero(v: Array[T]): Unit

Definition Classes
Monoid
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def isNonZero(v: Array[T]): Boolean

Definition Classes
ArrayMonoid → Monoid
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def nonZeroOption(v: Array[T]): Option[Array[T]]

Definition Classes
Monoid
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def plus(left: Array[T], right: Array[T]): Array[T]

Combines two T instances associatively.
Combines two T instances associatively.
returns
result of combining l and r

Definition Classes
ArrayMonoid → Semigroup
def sum(vs: TraversableOnce[Array[T]]): Array[T]

Definition Classes
Monoid
def sumOption(iter: TraversableOnce[Array[T]]): Option[Array[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.
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
def zero: Array[T]

Returns the identity element of T for plus.
Returns the identity element of T for plus.

Definition Classes
ArrayMonoid → Monoid

Inherited from Monoid[Array[T]]

Inherited from Semigroup[Array[T]]

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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