HyperLogLog

Instance Constructors

new HyperLogLog(funnel: Funnel[T], b: Int)

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
val M: Array[Int]

registers
def add(item: T): Long

Incorporates an item into the registers, updates the cardinality estimate and returns it.
Incorporates an item into the registers, updates the cardinality estimate and returns it.
item
the item to add
returns
Long
val am2: Double

correction constant alpha(m) * m**2
correction constant alpha(m) * m**2
final def asInstanceOf[T0]: T0

Definition Classes
Any
val b: Int
var cardinality: Long

current cardinality estimate
def clone(): AnyRef

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

Definition Classes
AnyRef
def finalize(): Unit

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

Definition Classes
AnyRef → Any
val hasher: HashFunction

murmur3 128 guava hashing function generator
val intermediateRange: Int

upper bound of intermediate range
def isEmpty: Boolean

True if no data has been added to the registers
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
val m: Int

number of registers m = 2**b
number of registers m = 2**b
def merge(another: HyperLogLog[T]): HyperLogLog[T]

Merge another HyperLogLog[T] instance into this instance.
Merge another HyperLogLog[T] instance into this instance. Note the other instance must have the same b parameter as this instance.
another
the other HyperLogLog[T] instance
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def nonEmpty: Boolean

True if data has been added to the registers
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
val relativeError: Double

relativeError of cardinality estimates
val smallRange: Int

upper bound of small range
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
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( ... )

Related Docs: object HyperLogLog | package cardinality

case class HyperLogLog[T](funnel: Funnel[T], b: Int) extends Product with Serializable

Instance Constructors

new HyperLogLog(funnel: Funnel[T], b: Int)

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

val M: Array[Int]

def add(item: T): Long

val am2: Double

final def asInstanceOf[T0]: T0

val b: Int

var cardinality: Long

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def finalize(): Unit

val funnel: Funnel[T]

final def getClass(): Class[_]

val hasher: HashFunction

val intermediateRange: Int

def isEmpty: Boolean

final def isInstanceOf[T0]: Boolean

val m: Int

def merge(another: HyperLogLog[T]): HyperLogLog[T]

final def ne(arg0: AnyRef): Boolean

def nonEmpty: Boolean

final def notify(): Unit

final def notifyAll(): Unit

val relativeError: Double

val smallRange: Int

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

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped