SSJ
3.3.1
Stochastic Simulation in Java
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This class implements random variate generators having the Poisson distribution (see PoissonGen ). More...
Public Member Functions | |
PoissonTIACGen (RandomStream s, double lambda) | |
Creates a Poisson random variate generator with parameter \(\lambda= \) lambda , using stream s . | |
PoissonTIACGen (RandomStream s, PoissonDist dist) | |
Creates a new random variate generator using the Poisson distribution dist and stream s . | |
int | nextInt () |
Public Member Functions inherited from PoissonGen | |
PoissonGen (RandomStream s, double lambda) | |
Creates a Poisson random variate generator with parameter \(\lambda= \) lambda , using stream s . | |
PoissonGen (RandomStream s, PoissonDist dist) | |
Creates a new random variate generator using the Poisson distribution dist and stream s . | |
double | getLambda () |
Returns the \(\lambda\) associated with 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 lambda) |
A static method for generating a random variate from a Poisson distribution with parameter \(\lambda\) = lambda . | |
Static Public Member Functions inherited from PoissonGen | |
static int | nextInt (RandomStream s, double lambda) |
A static method for generating a random variate from a Poisson distribution with parameter \(\lambda\) = lambda . | |
Static Package Functions | |
[static initializer] | |
Additional Inherited Members | |
Protected Member Functions inherited from PoissonGen | |
void | setParams (double lam) |
Sets the parameter \(\lambda= \) lam of this object. | |
Protected Attributes inherited from PoissonGen | |
double | lambda |
Protected Attributes inherited from RandomVariateGen | |
RandomStream | stream |
Distribution | dist |
This class implements random variate generators having the Poisson distribution (see PoissonGen ).
Uses the tabulated inversion combined with the acceptance complement (TIAC) method of [3] . The implementation is adapted from UNURAN [166] .