SSJ
3.3.1
Stochastic Simulation in Java
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Implements Beta random variate generators using the rejection method with log-logistic envelopes from [34] . More...
Public Member Functions | |
BetaRejectionLoglogisticGen (RandomStream s, RandomStream aux, double alpha, double beta) | |
Creates a beta random variate generator with parameters \(\alpha=\) alpha and \(\beta=\) beta over the interval \((0,1)\), using main stream s and auxiliary stream aux . More... | |
BetaRejectionLoglogisticGen (RandomStream s, double alpha, double beta) | |
Creates a beta random variate generator with parameters \(\alpha=\) alpha and \(\beta=\) beta , over the interval \((0,1)\), using stream s . | |
BetaRejectionLoglogisticGen (RandomStream s, RandomStream aux, double alpha, double beta, double a, double b) | |
Creates a beta random variate generator with parameters \(\alpha=\) alpha and \(\beta=\) beta over the interval (a , b ), using main stream s and auxiliary stream aux . More... | |
BetaRejectionLoglogisticGen (RandomStream s, double alpha, double beta, double a, double b) | |
Creates a beta random variate generator with parameters \(\alpha=\) alpha and \(\beta=\) beta , over the interval (a , b ), using stream s . | |
BetaRejectionLoglogisticGen (RandomStream s, RandomStream aux, BetaDist dist) | |
Creates a new generator for the distribution dist , using stream s and auxiliary stream aux . More... | |
BetaRejectionLoglogisticGen (RandomStream s, BetaDist dist) | |
Same as BetaRejectionLoglogisticGen(s, s, dist). More... | |
RandomStream | getAuxStream () |
Returns the auxiliary stream associated with that object. | |
double | nextDouble () |
Public Member Functions inherited from BetaGen | |
BetaGen (RandomStream s, double alpha, double beta, double a, double b) | |
Creates a new beta generator with parameters \(\alpha=\) alpha and \(\beta=\) beta , over the interval \((\)a \(,\) b \()\), using stream s . | |
BetaGen (RandomStream s, double alpha, double beta) | |
Creates a new beta generator with parameters \(\alpha=\) alpha and \(\beta=\) beta , over the interval \((0,1)\), using stream s . | |
BetaGen (RandomStream s, BetaDist 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. | |
double | getA () |
Returns the parameter \(a\) of this object. | |
double | getB () |
Returns the parameter \(b\) 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. | |
Additional Inherited Members | |
Static Public Member Functions inherited from BetaGen | |
static double | nextDouble (RandomStream s, double alpha, double beta, double a, double b) |
Generates a variate from the beta distribution with parameters \(\alpha= \) alpha , \(\beta= \) beta , over the interval \((a, b)\), using stream s . | |
Protected Member Functions inherited from BetaGen | |
void | setParams (double alpha, double beta, double aa, double bb) |
Protected Attributes inherited from BetaGen | |
double | p |
double | q |
double | a |
double | b |
int | gen |
Protected Attributes inherited from RandomVariateGen | |
RandomStream | stream |
Distribution | dist |
Implements Beta random variate generators using the rejection method with log-logistic envelopes from [34] .
The method draws the first two uniforms from the main stream and uses the auxiliary stream for the remaining uniforms, when more than two are needed (i.e., when rejection occurs). The current implementation is adapted from UNURAN.
BetaRejectionLoglogisticGen | ( | RandomStream | s, |
RandomStream | aux, | ||
double | alpha, | ||
double | beta | ||
) |
Creates a beta random variate generator with parameters \(\alpha=\) alpha
and \(\beta=\) beta
over the interval \((0,1)\), using main stream s
and auxiliary stream aux
.
The auxiliary stream is used when a random number of uniforms is required for a rejection-type generation method.
BetaRejectionLoglogisticGen | ( | RandomStream | s, |
RandomStream | aux, | ||
double | alpha, | ||
double | beta, | ||
double | a, | ||
double | b | ||
) |
Creates a beta random variate generator with parameters \(\alpha=\) alpha
and \(\beta=\) beta
over the interval (a
, b
), using main stream s
and auxiliary stream aux
.
The auxiliary stream is used when a random number of uniforms is required for a rejection-type generation method.
BetaRejectionLoglogisticGen | ( | RandomStream | s, |
RandomStream | aux, | ||
BetaDist | dist | ||
) |
Creates a new generator for the distribution dist
, using stream s
and auxiliary stream aux
.
The main stream is used for the first uniforms (before a rejection occurs) and the auxiliary stream is used afterwards (after the first rejection).
BetaRejectionLoglogisticGen | ( | RandomStream | s, |
BetaDist | dist | ||
) |
Same as BetaRejectionLoglogisticGen(s, s, dist).
The auxiliary stream used will be the same as the main stream.