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SSJ V. 1.2.5. |
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java.lang.Objectumontreal.iro.lecuyer.randvar.RandomVariateGen
umontreal.iro.lecuyer.randvar.ChiGen
public class ChiGen
This class implements random variate generators for the chi distribution. It has ν > 0 degrees of freedom and its density function is
GammaGen
.
No local copy of the parameter ν is maintained in this class. The (non-static) nextDouble method simply calls inverseF on the distribution (slow).
Constructor Summary | |
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ChiGen(RandomStream s,
ChiDist dist)
Create a new generator for the distribution dist, using stream s. |
Method Summary | |
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double |
nextDouble()
Generates a random number from the continuous distribution contained in this object. |
static double |
nextDouble(RandomStream s,
int nu)
Generates a random variate from the chi distribution with ν = nu degrees of freedom, using stream s. |
Methods inherited from class umontreal.iro.lecuyer.randvar.RandomVariateGen |
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getDistribution, getStream, nextArrayOfDouble, setStream |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ChiGen(RandomStream s, ChiDist dist)
Method Detail |
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public double nextDouble()
RandomVariateGen
inverseF
method of the distribution object.
Alternative generating methods are provided in subclasses.
nextDouble
in class RandomVariateGen
public static double nextDouble(RandomStream s, int nu)
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