This class implements a random variate generator that returns a constant value. More...

Inheritance diagram for umontreal.ssj.randvar.ConstantGen:

Public Member Functions
	ConstantGen (double val)
	Constructs a new constant generator returning the given value val.
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.
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[]	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.

Detailed Description

This class implements a random variate generator that returns a constant value.

Its mass function is

\[ p(x) = \left\{\begin{array}{ll} 1, & \qquad\mbox{for } x = c, \\ 0, & \qquad\mbox{elsewhere. } \end{array}\right. \tag{randcons} \]

Definition at line 38 of file ConstantGen.java.

Constructor & Destructor Documentation

◆ ConstantGen()

umontreal.ssj.randvar.ConstantGen.ConstantGen ( double val )

Constructs a new constant generator returning the given value val.

Definition at line 44 of file ConstantGen.java.

Member Function Documentation

◆ nextArrayOfDouble()

void umontreal.ssj.randvar.ConstantGen.nextArrayOfDouble	(	double[]	v,
		int	start,
		int	n )

Generates n random numbers from the continuous distribution contained in this object.

These numbers are stored in the array v, starting from index start. By default, this method calls nextDouble() n times, but one can override it in subclasses for better efficiency.

Parameters

v	array in which the variates will be stored
start	starting index, in v, of the new variates
n	number of variates to generate

Reimplemented from umontreal.ssj.randvar.RandomVariateGen.

Definition at line 54 of file ConstantGen.java.

◆ nextDouble()

double umontreal.ssj.randvar.ConstantGen.nextDouble ( )

Generates a random number from the continuous distribution contained in this object.

By default, this method uses inversion by calling the umontreal.ssj.probdist.ContinuousDistribution.inverseF method of the distribution object. Alternative generating methods are provided in subclasses.

Returns: the generated value