GfsrGenerator Class

[SerializableAttribute]
public sealed class GfsrGenerator : RandomWordGenerator

<SerializableAttribute>
Public NotInheritable Class GfsrGenerator
	Inherits RandomWordGenerator

[SerializableAttribute]
public ref class GfsrGenerator sealed : public RandomWordGenerator

[<SealedAttribute>]
[<SerializableAttribute>]
type GfsrGenerator =  
    class
        inherit RandomWordGenerator
    end

The GfsrGenerator type exposes the following members.

	Name	Description
	GfsrGenerator	Initializes a new instance of the GfsrGenerator class using a time-dependent default seed value.
	GfsrGenerator(Int32)	Initializes a new instance of the GfsrGenerator class using the specified seed value.
	GfsrGenerator(Int32)	Initializes a new instance of the GfsrGenerator class using the specified seed array of seed values.

	Name	Description
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Next	Returns a nonnegative random number. (Inherited from RandomWordGenerator.)
	Next(Int32)	Returns a non-negative random integer that is less than the specified maximum. (Inherited from Random.)
	Next(Int32, Int32)	Returns a random integer that is within a specified range. (Inherited from Random.)
	NextBytes(Byte)	Fills the elements of a specified array of bytes with random numbers. (Inherited from RandomWordGenerator.)
	NextBytes(SpanByte)	Fills the elements of a specified span of bytes with random numbers. (Inherited from Random.)
	NextDouble	Returns a random number between 0 and 1. (Inherited from RandomWordGenerator.)
	Restart	Restarts the random number generator using the original seed. (Overrides ExtendedRandomRestart.)
	Restart(Int32)	Restarts the random number generator using the specified seed. (Overrides ExtendedRandomRestart(Int32).)
	Restart(Int32)	Restarts the random number generator using the specified seed array.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

	Name	Description
	AsParallel	Returns a thread-safe version of this random number generator. (Defined by RandomExtensions.)
	CorrelatedSamples	Generates a series of random variables with the specified correlation matrix. (Defined by RandomExtensions.)
	Fill(IListDouble)	Overloaded. Fills a Double array with random numbers. (Defined by RandomExtensions.)
	Fill(IListInt32)	Overloaded. Fills an Int32 array with random numbers. (Defined by RandomExtensions.)
	Fill(Double, ContinuousDistribution)	Overloaded. Fills a Double array with random samples from the specified distribution. (Defined by RandomExtensions.)
	Fill(Int32, DiscreteDistribution)	Overloaded. Fills an Int32 array with random samples from the specified distribution. (Defined by RandomExtensions.)
	Fill(VectorDouble, ContinuousDistribution)	Overloaded. Fills a vector with random samples from the specified distribution. (Defined by RandomExtensions.)
	Fill(VectorDouble, DiscreteDistribution)	Overloaded. Fills a vector with random samples from the specified distribution. (Defined by RandomExtensions.)
	Fill(Double, Int32, Int32)	Overloaded. Fills a Double array with random samples from the specified distribution. (Defined by RandomExtensions.)
	Fill(IListDouble, Int32, Int32)	Overloaded. Fills a Double array with random numbers. (Defined by RandomExtensions.)
	Fill(IListInt32, Int32, Int32)	Overloaded. Fills an Int32 array with random numbers. (Defined by RandomExtensions.)
	Fill(Int32, Int32, Int32)	Overloaded. Fills an Int32 array with random samples from the specified distribution. (Defined by RandomExtensions.)
	Fill(Double, Int32, Int32, ContinuousDistribution)	Overloaded. Fills a Double array with random samples from the specified distribution. (Defined by RandomExtensions.)
	Fill(Int32, Int32, Int32, DiscreteDistribution)	Overloaded. Fills an Int32 array with random samples from the specified distribution. (Defined by RandomExtensions.)
	FillNormal(IListDouble)	Overloaded. Fills a list with normal random numbers with zero mean and unit standard deviation. (Defined by RandomExtensions.)
	FillNormal(IListDouble, Int32, Int32)	Overloaded. Fills a list with normal random numbers with zero mean and unit standard deviation. (Defined by RandomExtensions.)
	Next	Returns a sample from the specified distribution. (Defined by RandomExtensions.)
	NextDouble	Returns a sample from the specified distribution. (Defined by RandomExtensions.)

Use the GfsrGenerator class to represent a pseudo-this.random number generator that uses a fourth order generalized feedback shift register algorithm.

This generalized feedback shift register generator has a very long period of 2⁹⁶⁸⁹-1. Thanks to its simplicity, it is very fast. On the down side, the start-up time is significant.

GfsrGenerator can be used in place of the Random class to obtain pseudo-random numbers of a higher quality.

Reference: Robert M. Ziff, "Four-tap shift-register-sequence this.random-number generators," Computers in Physics 12(4), Jul/Aug 1998, pp 385-392.

Reference