This class implements random variate generators for the triangular distribution. More...
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 umontreal.ssj.randvar.RandomVariateGen | |
| RandomVariateGen (RandomStream s, Distribution dist) | |
| Creates a new random variate generator from the distribution dist, using stream s. | |
| double | nextDouble () |
| Generates a random number from the continuous distribution contained in this object. | |
| void | nextArrayOfDouble (double[] v, int start, int n) |
| Generates n random numbers from the continuous distribution contained in this object. | |
| 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. | |
| RandomStream | getStream () |
| Returns the umontreal.ssj.rng.RandomStream used by this generator. | |
| 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. | |
| 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. | |
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., [114] ).
The (non-static) nextDouble method simply calls inverseF on the distribution.
Definition at line 47 of file TriangularGen.java.
Constructor & Destructor Documentation
◆ TriangularGen() [1/3]
| umontreal.ssj.randvar.TriangularGen.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.
Definition at line 56 of file TriangularGen.java.
◆ TriangularGen() [2/3]
| umontreal.ssj.randvar.TriangularGen.TriangularGen | ( | RandomStream | s, |
| double | m ) |
Creates a triangular random variate generator over the interval \((0, 1)\), with parameter m, using stream s.
Definition at line 65 of file TriangularGen.java.
◆ TriangularGen() [3/3]
| umontreal.ssj.randvar.TriangularGen.TriangularGen | ( | RandomStream | s, |
| TriangularDist | dist ) |
Creates a new generator for the triangular distribution dist and stream s.
Definition at line 73 of file TriangularGen.java.
Member Function Documentation
◆ getA()
| double umontreal.ssj.randvar.TriangularGen.getA | ( | ) |
Returns the value of \(a\) for this object.
Definition at line 94 of file TriangularGen.java.
◆ getB()
| double umontreal.ssj.randvar.TriangularGen.getB | ( | ) |
Returns the value of \(b\) for this object.
Definition at line 101 of file TriangularGen.java.
◆ getM()
| double umontreal.ssj.randvar.TriangularGen.getM | ( | ) |
Returns the value of \(m\) for this object.
Definition at line 108 of file TriangularGen.java.
◆ nextDouble()
|
static |
Generates a new variate from the triangular distribution with parameters \(a = \) a, \(b = \) b and \(m = \) m and stream s, using inversion.
Definition at line 85 of file TriangularGen.java.
The documentation for this class was generated from the following file:
- src/main/java/umontreal/ssj/randvar/TriangularGen.java
