RealRandom Class Reference

Inheritance diagram for RealRandom:

List of all members.

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Detailed Description

Base class for real-valued random number generators.

This class is the base for all of the real-valued random number generators.

Author:

Bill Smart

Date:

November 2001

Version:

1.0

Definition at line 123 of file Random.H.

Public Member Functions
	RealRandom (const unsigned long seed)
Generate samples
RealRandom &	operator>> (double &random_number)
	Output stream operator.
double	operator() ()
	Function operator.
	operator double ()
	Double precision cast operator.
virtual double	number ()=0
	Generate a sample from the random variable.
Moments of the random variable
virtual double	mean () const=0
virtual double	variance () const=0
virtual double	stdDev () const=0

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Constructor & Destructor Documentation

RealRandom

(

const unsigned long

seed

)

[inline]

Allocates the class instance and sets the random number seed.

Parameters:

seed

Random number seed. Do not set this to zero.

Definition at line 128 of file Random.H.

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Member Function Documentation

RealRandom& operator>>

(

double &

random_number

)

[inline]

Output stream operator.

This generates a random number and loads it into a double precision floating point variable.

Returns:

A reference to the class instance, used for chaining multiple uses of the operator together.

Parameters:

random_number

The variable to be assigned to.

Definition at line 139 of file Random.H.

References number().

double operator()

(

)

[inline]

Function operator.

This allows an instance of the class to look like a function call.

Returns:

A sample from the random variable.

Definition at line 145 of file Random.H.

References number().

operator double

(

)

[inline]

Double precision cast operator.

This allows an instance of the class to be treated as a double precision floating point number. Every access of this number will return a new sample from the random variable.

Returns:

A sample from the random variable.

Definition at line 152 of file Random.H.

References number().

virtual double number

(

)

[pure virtual]

Generate a sample from the random variable.

This function generates a sample from the random variable represented by the class instance.

Returns:

A sample from the random variable.

Implemented in UniformRandomSimple, UniformRandom, NormalRandom, and ExponentialRandom.

Referenced by operator double(), operator()(), and operator>>().

virtual double mean

(

)

const [pure virtual]

Returns:

The mean of the random variable.

Implements MTRand.

Implemented in UniformRandomSimple, UniformRandom, NormalRandom, and ExponentialRandom.

virtual double variance

(

)

const [pure virtual]

Returns:

The variance of the random variable.

Implements MTRand.

Implemented in UniformRandomSimple, UniformRandom, NormalRandom, and ExponentialRandom.

virtual double stdDev

(

)

const [pure virtual]

Returns:

The standard deviation of the random variable.

Implements MTRand.

Implemented in UniformRandomSimple, UniformRandom, NormalRandom, and ExponentialRandom.

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The documentation for this class was generated from the following file:

• /home/fwph/code/wurde/rde/core/Random.H

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