This class implements a random variate generator for the geometric distribution. More...
Inheritance diagram for GeometricGen:
Collaboration diagram for GeometricGen:
Public Member Functions | |
| GeometricGen (RandomStream s, double p) | |
Creates a geometric random variate generator with parameter \(p\), using stream s. | |
| GeometricGen (RandomStream s, GeometricDist dist) | |
Creates a new generator for the distribution dist, using stream s. | |
| int | nextInt () |
| double | getP () |
| Returns the parameter \(p\) of this object. | |
 Public Member Functions inherited from RandomVariateGenInt | |
| RandomVariateGenInt (RandomStream s, DiscreteDistributionInt dist) | |
Creates a new random variate generator for the discrete distribution dist, using stream s. More... | |
| int | nextInt () |
| Generates a random number (an integer) from the discrete distribution contained in this object. More... | |
| void | nextArrayOfInt (int[] v, int start, int n) |
Generates n random numbers from the discrete distribution contained in this object. More... | |
| int [] | nextArrayOfInt (int n) |
Generates n random numbers from the discrete distribution contained in this object, and returns them in a new array of size n. More... | |
| DiscreteDistributionInt | getDistribution () |
| Returns the umontreal.ssj.probdist.DiscreteDistributionInt used by this generator. More... | |
| 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 int | nextInt (RandomStream s, double p) |
Generates a geometric random variate with parameter \(p = \) p, using stream s, by inversion. | |
Protected Member Functions | |
| void | setParams (double p) |
| Sets the parameter \(n\) and \(p\) of this object. | |
Additional Inherited Members | |
| Protected Attributes inherited from RandomVariateGen | |
| RandomStream | stream |
| Distribution | dist |
Detailed Description
This class implements a random variate generator for the geometric distribution.
Its has parameter \(p\) and mass function
\[ p(x) = p(1-p)^x \mbox{ for } x=0,1,2,…, \tag{fgeom} \]
where \(0\le p\le1\). Random variates are generated by calling inversion on the distribution object.
The documentation for this class was generated from the following file:
- GeometricGen.java
