This class implements random variate generators for the log-logistic distribution with shape parameter \(\alpha> 0\) and scale parameter \(\beta> 0\). More...
Inheritance diagram for LoglogisticGen:
Collaboration diagram for LoglogisticGen:
Public Member Functions | |
| LoglogisticGen (RandomStream s, double alpha, double beta) | |
Creates a log-logistic random variate generator with parameters \(\alpha=\) alpha and \(\beta=\) beta, using stream s. | |
| 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 RandomVariateGen | |
| RandomVariateGen (RandomStream s, Distribution dist) | |
Creates a new random variate generator from the distribution dist, using stream s. More... | |
| double | nextDouble () |
| Generates a random number from the continuous distribution contained in this object. More... | |
| void | nextArrayOfDouble (double[] v, int start, int n) |
Generates n random numbers from the continuous distribution contained in this object. More... | |
| 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. More... | |
| RandomStream | getStream () |
| Returns the umontreal.ssj.rng.RandomStream used by this generator. More... | |
| 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. More... | |
| 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 \(\beta> 0\). | |
Protected Member Functions | |
| void | setParams (double alpha, double beta) |
Protected Attributes | |
| double | alpha |
| double | beta |
| Protected Attributes inherited from RandomVariateGen | |
| RandomStream | stream |
| Distribution | dist |
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
\[ f(x) = \frac{\alpha(x / \beta)^{\alpha- 1}}{\beta[1 + (x / \beta)^{\alpha}]^2} \qquad\qquad\mbox{for } x > 0. \tag{floglogistic} \]
The documentation for this class was generated from the following file:
- LoglogisticGen.java
