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java.lang.Objectumontreal.iro.lecuyer.randvar.RandomVariateGen
umontreal.iro.lecuyer.randvar.RayleighGen
public class RayleighGen
This class implements random variate generators for the
Rayleigh distribution.
Its density is
| f (x) | = | (x-a) e-(x-a)2/(2β2)/β2 for x >= a | |
| f (x) | = | 0 for x < a, |
| Constructor Summary | |
|---|---|
RayleighGen(RandomStream s,
double beta)
Creates a Rayleigh random variate generator with parameters a = 0 and β = beta, using stream s. |
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RayleighGen(RandomStream s,
double a,
double beta)
Creates a Rayleigh random variate generator with parameters a = a and β = beta, using stream s. |
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RayleighGen(RandomStream s,
RayleighDist dist)
Creates a new generator for the Rayleigh distribution dist and stream s. |
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| Method Summary | |
|---|---|
double |
getA()
Returns the parameter a. |
double |
getSigma()
Returns the parameter β. |
static double |
nextDouble(RandomStream s,
double a,
double beta)
Uses inversion to generate a new variate from the Rayleigh distribution with parameters a = a and β = beta, using stream s. |
void |
setParams(double a,
double beta)
Sets the parameters a = a and β = beta for this object. |
| Methods inherited from class umontreal.iro.lecuyer.randvar.RandomVariateGen |
|---|
getDistribution, getStream, nextArrayOfDouble, nextDouble, setStream, toString |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public RayleighGen(RandomStream s,
double a,
double beta)
public RayleighGen(RandomStream s,
double beta)
public RayleighGen(RandomStream s,
RayleighDist dist)
| Method Detail |
|---|
public static double nextDouble(RandomStream s,
double a,
double beta)
public double getA()
public double getSigma()
public void setParams(double a,
double beta)
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SSJ V. labo. |
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