This class implements random variate generators for the triangular distribution. More...
Inheritance diagram for TriangularGen:
Collaboration diagram for TriangularGen:
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.
\[ f(x) = \left\{\begin{array}{ll} \frac{2(x-a)}{(b-a)(m-a)} & \mbox{for } a\le x\le m, \\ \frac{2(b-x)}{(b-a)(b-m)} & \mbox{ for } m\le x\le b, \\ 0 & \mbox{ elsewhere, } \end{array}\right. \tag{ftrian} \]
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:
- TriangularGen.java
