cern.jet.random

Class Benchmark

java.lang.Object

cern.colt.PersistentObject

cern.jet.random.Benchmark

All Implemented Interfaces:

Serializable, Cloneable

public class Benchmark
extends PersistentObject

Benchmarks random number generation from various distributions as well as PDF and CDF lookups.

Version:

1.0, 09/24/99

Author:

wolfgang.hoschek@cern.ch

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected RandomEngine	randomGenerator

Fields inherited from class cern.colt.PersistentObject

serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Benchmark() Makes this class non instantiable, but still let's others inherit from it.

Method Summary

Methods

Modifier and Type	Method and Description
static void	demo1() Prints the first size random numbers generated by the distribution.
static void	main(String[] args) Benchmarks all subclasses
static void	random(int size, boolean print, double mean, String generatorName) Benchmarks all subclasses
static void	randomInstance(int size, boolean print, AbstractDistribution dist) generates random numbers from
static void	test(int size, AbstractDistribution distribution) Prints the first size random numbers generated by the distribution.
static void	test2(int size, AbstractDistribution distribution) Prints the first size random numbers generated by the distribution.
static void	test2(int size, AbstractDistribution a, AbstractDistribution b) Prints the first size random numbers generated by the distribution.

Methods inherited from class cern.colt.PersistentObject

clone

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

randomGenerator

protected RandomEngine randomGenerator

Constructor Detail

Benchmark

protected Benchmark()

Makes this class non instantiable, but still let's others inherit from it.

Method Detail

demo1

public static void demo1()

Prints the first size random numbers generated by the distribution.

main

public static void main(String[] args)

Benchmarks all subclasses

Parameters:

args[0] - the number of random numbers to be generated per subclass.

args[1] - true prints each generated number, false does not print generated numbers (use this setting for benchmarking).

random

public static void random(int size,
          boolean print,
          double mean,
          String generatorName)

Benchmarks all subclasses

Parameters:

size - the number of random numbers to be generated per subclass.

print - true prints each generated number, false does not print generated numbers (use this setting for benchmarking).

mean - the mean for distributions that require a mean.

randomInstance

public static void randomInstance(int size,
                  boolean print,
                  AbstractDistribution dist)

generates random numbers from

test

public static void test(int size,
        AbstractDistribution distribution)

Prints the first size random numbers generated by the distribution.

test2

public static void test2(int size,
         AbstractDistribution distribution)

Prints the first size random numbers generated by the distribution.

test2

public static void test2(int size,
         AbstractDistribution a,
         AbstractDistribution b)

Prints the first size random numbers generated by the distribution.