Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
Colt 1.2.0
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

cern.jet.random
Class Hyperbolic

java.lang.Object
  extended bycern.colt.PersistentObject
      extended bycern.jet.random.AbstractDistribution
          extended bycern.jet.random.AbstractContinousDistribution
              extended bycern.jet.random.Hyperbolic
All Implemented Interfaces:
Cloneable, DoubleFunction, IntFunction, Serializable
public class Hyperbolic
extends AbstractContinousDistribution

Hyperbolic distribution.

Valid parameter ranges: alpha > 0 and beta > 0.

Instance methods operate on a user supplied uniform random number generator; they are unsynchronized.

Static methods operate on a default uniform random number generator; they are synchronized.

Implementation:

Method: Non-Universal Rejection. High performance implementation.
This is a port of hyplc.c from the C-RAND / WIN-RAND library. C-RAND's implementation, in turn, is based upon

L. Devroye (1986): Non-Uniform Random Variate Generation, Springer Verlag, New York.

Version:
1.0, 09/24/99
See Also:
Serialized Form

Field Summary
 
Fields inherited from class cern.colt.PersistentObject
serialVersionUID
 
Constructor Summary
Hyperbolic(double alpha, double beta, RandomEngine randomGenerator)
          Constructs a Beta distribution.
 
Method Summary
 double nextDouble()
          Returns a random number from the distribution.
 double nextDouble(double alpha, double beta)
          Returns a hyperbolic distributed random number; bypasses the internal state.
 void setState(double alpha, double beta)
          Sets the parameters.
static double staticNextDouble(double alpha, double beta)
          Returns a random number from the distribution.
 String toString()
          Returns a String representation of the receiver.
 
Methods inherited from class cern.jet.random.AbstractDistribution
apply, apply, clone, makeDefaultGenerator, nextInt
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Hyperbolic

public Hyperbolic(double alpha,
                  double beta,
                  RandomEngine randomGenerator)
Constructs a Beta distribution.

Method Detail

nextDouble

public double nextDouble()
Returns a random number from the distribution.

Specified by:
nextDouble in class AbstractDistribution

nextDouble

public double nextDouble(double alpha,
                         double beta)
Returns a hyperbolic distributed random number; bypasses the internal state.

setState

public void setState(double alpha,
                     double beta)
Sets the parameters.

staticNextDouble

public static double staticNextDouble(double alpha,
                                      double beta)
Returns a random number from the distribution.

toString

public String toString()
Returns a String representation of the receiver.

Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
Colt 1.2.0
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD
Jump to the Colt Homepage