Variate

The Variate abstract class serves as a base class for all the random variate (RV) generators. They use one of the Random Number Generators (RNG's) from Random to generate numbers following their particular distribution. Random Variate Generators (RVG's) for thirty popular probability distributions are implemented as extensions of Variate. Still need to add one.

See also: VariateVec for Random MultiVariate Generators (RMVG's).
http://www.math.uah.edu/stat/special/index.html

Linear Supertypes

Error, AnyRef, Any

Known Subclasses

Bernoulli, Beta, Binomial, Cauchy, ChiSquare, Dice, Discrete, Erlang, Exponential, Fisher, Gamma, Geometric, HyperExponential, HyperGeometric, LogNormal, Logistic, Multinomial, NHPoissonProcess, NegativeBinomial, Normal, Pareto, Poisson, PoissonProcess, Randi, Randi0, Sharp, StudentT, TimeVariate, Trapezoidal, Triangular, Trinomial, Uniform, Weibull, _HyperExponential

Instance Constructors

new Variate(stream: Int = 0)

Abstract Value Members

abstract def gen: Double

Determine the next random number for the particular distribution.
abstract val mean: Double

Pre-compute the mean for the particular distribution.
abstract def pf(z: Double): Double

Compute the probability function (pf): Either (a) the probability density function (pdf) for continuous RV's or (b) the probability mass function (pmf) for discrete RV's.
Compute the probability function (pf): Either (a) the probability density function (pdf) for continuous RV's or (b) the probability mass function (pmf) for discrete RV's.
z
the mass point whose probability density/mass is sought

Concrete 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
var _discrete: Boolean

Indicates whether the distribution is discrete or continuous (default)
Indicates whether the distribution is discrete or continuous (default)

Attributes
protected
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

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

Determine whether the distribution is discrete or continuous.
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] )
def flaw(method: String, message: String): Unit

Show the flaw by printing the error message.
Show the flaw by printing the error message.
method
the method where the error occurred
message
the error message

Definition Classes
Error
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
def igen: Int

Determine the next random integer for the particular distribution.
Determine the next random integer for the particular distribution. It is only valid for discrete random variates.
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def pmf(k: Int = 0): Array[Double]

Return the entire probability mass function (pmf) for finite discrete RV's.
Return the entire probability mass function (pmf) for finite discrete RV's.
k
number of objects of the first type
val r: Random

Random number stream selected by the stream number
Random number stream selected by the stream number

Attributes
protected
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( ... )

Related Doc: package random

abstract class Variate extends Error

Instance Constructors

new Variate(stream: Int = 0)

Abstract Value Members

abstract def gen: Double

abstract val mean: Double

abstract def pf(z: Double): Double

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

var _discrete: Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def discrete: Boolean

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def flaw(method: String, message: String): Unit

final def getClass(): Class[_]

def hashCode(): Int

def igen: Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def pmf(k: Int = 0): Array[Double]

val r: Random

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

def toString(): String

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Error

Inherited from AnyRef

Inherited from Any

Ungrouped