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SSJ  3.3.1
Stochastic Simulation in Java
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This class implements random variate generators for the triangular distribution. More...

Inheritance diagram for TriangularGen:
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Collaboration diagram for TriangularGen:
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Public Member Functions

 TriangularGen (RandomStream s, double a, double b, double m)
 Creates a triangular random variate generator over the interval (a, b), with parameter m, using stream s.
 
 TriangularGen (RandomStream s, double m)
 Creates a triangular random variate generator over the interval \((0, 1)\), with parameter m, using stream s.
 
 TriangularGen (RandomStream s, TriangularDist dist)
 Creates a new generator for the triangular distribution dist and stream s.
 
double getA ()
 Returns the value of \(a\) for this object.
 
double getB ()
 Returns the value of \(b\) for this object.
 
double getM ()
 Returns the value of \(m\) for 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 a, double b, double m)
 Generates a new variate from the triangular distribution with parameters \(a = \) a, \(b = \) b and \(m = \) m and stream s, using inversion.
 

Additional Inherited Members

- Protected Attributes inherited from RandomVariateGen
RandomStream stream
 
Distribution dist
 

Detailed Description

This class implements random variate generators for the triangular distribution.

Its density is

\[ f(x) = \left\{\begin{array}{ll} \frac{2(x-a)}{(b-a)(m-a)} & \mbox{for } a\le x\le m, \\ \frac{2(b-x)}{(b-a)(b-m)} & \mbox{ for } m\le x\le b, \\ 0 & \mbox{ elsewhere, } \end{array}\right. \tag{ftrian} \]

where \(a\le m\le b\) (see, e.g., [118] ).

The (non-static) nextDouble method simply calls inverseF on the distribution.


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