SSJ API Documentation
Stochastic Simulation in Java
Loading...
Searching...
No Matches
umontreal.ssj.randvar.LoglogisticGen Class Reference

This class implements random variate generators for the log-logistic distribution with shape parameter \(\alpha> 0\) and scale parameter. More...

Inheritance diagram for umontreal.ssj.randvar.LoglogisticGen:
umontreal.ssj.randvar.RandomVariateGen

Public Member Functions

 LoglogisticGen (RandomStream s, double alpha, double beta)
 Creates a log-logistic random variate generator with parameters.
 LoglogisticGen (RandomStream s, LoglogisticDist dist)
 Creates a new generator for the distribution dist, using stream s.
double getAlpha ()
 Returns the parameter \(\alpha\) of this object.
double getBeta ()
 Returns the parameter \(\beta\) of this object.
Public Member Functions inherited from umontreal.ssj.randvar.RandomVariateGen
 RandomVariateGen (RandomStream s, Distribution dist)
 Creates a new random variate generator from the distribution dist, using stream s.
double nextDouble ()
 Generates a random number from the continuous distribution contained in this object.
void nextArrayOfDouble (double[] v, int start, int n)
 Generates n random numbers from the continuous distribution contained in this object.
double[] nextArrayOfDouble (int n)
 Generates n random numbers from the continuous distribution contained in this object, and returns them in a new array of size n.
RandomStream getStream ()
 Returns the umontreal.ssj.rng.RandomStream used by this generator.
void setStream (RandomStream stream)
 Sets the umontreal.ssj.rng.RandomStream used by this generator to stream.
Distribution getDistribution ()
 Returns the umontreal.ssj.probdist.Distribution used by this generator.
String toString ()
 Returns a String containing information about the current generator.

Static Public Member Functions

static double nextDouble (RandomStream s, double alpha, double beta)
 Generates a variate from the log-logistic distribution with shape parameter \(\alpha> 0\) and scale parameter \(\beta> 0\).

Detailed Description

This class implements random variate generators for the log-logistic distribution with shape parameter \(\alpha> 0\) and scale parameter.

\(\beta> 0\). The density function of this distribution is

\[ f(x) = \frac{\alpha(x / \beta)^{\alpha- 1}}{\beta[1 + (x / \beta)^{\alpha}]^2} \qquad\qquad\mbox{for } x > 0. \tag{floglogistic} \]

Definition at line 42 of file LoglogisticGen.java.

Constructor & Destructor Documentation

◆ LoglogisticGen() [1/2]

umontreal.ssj.randvar.LoglogisticGen.LoglogisticGen ( RandomStream s,
double alpha,
double beta )

Creates a log-logistic random variate generator with parameters.

\(\alpha=\) alpha and \(\beta=\) beta, using stream s.

Definition at line 51 of file LoglogisticGen.java.

◆ LoglogisticGen() [2/2]

umontreal.ssj.randvar.LoglogisticGen.LoglogisticGen ( RandomStream s,
LoglogisticDist dist )

Creates a new generator for the distribution dist, using stream s.

Definition at line 59 of file LoglogisticGen.java.

Member Function Documentation

◆ getAlpha()

double umontreal.ssj.randvar.LoglogisticGen.getAlpha ( )

Returns the parameter \(\alpha\) of this object.

Definition at line 76 of file LoglogisticGen.java.

◆ getBeta()

double umontreal.ssj.randvar.LoglogisticGen.getBeta ( )

Returns the parameter \(\beta\) of this object.

Definition at line 83 of file LoglogisticGen.java.

◆ nextDouble()

double umontreal.ssj.randvar.LoglogisticGen.nextDouble ( RandomStream s,
double alpha,
double beta )
static

Generates a variate from the log-logistic distribution with shape parameter \(\alpha> 0\) and scale parameter \(\beta> 0\).

Definition at line 69 of file LoglogisticGen.java.


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