smile.math.random

Interface RandomNumberGenerator

All Known Implementing Classes:

MersenneTwister, MersenneTwister64, UniversalGenerator

public interface RandomNumberGenerator

Random number generator interface.

Method Summary

Modifier and Type	Method and Description
int	next(int numbits) Returns up to 32 random bits.
double	nextDouble() Returns the next pseudorandom, uniformly distributed double value between 0.0 and 1.0 from this random number generator's sequence.
void	nextDoubles(double[] d) Returns a vector of pseudorandom, uniformly distributed double values between 0.0 and 1.0 from this random number generator's sequence.
int	nextInt() Returns the next pseudorandom, uniformly distributed int value from this random number generator's sequence.
int	nextInt(int n) Returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.
long	nextLong() Returns the next pseudorandom, uniformly distributed long value from this random number generator's sequence.
void	setSeed(long seed) Initialize the random generator with a seed.

Method Detail

setSeed

void setSeed(long seed)

Initialize the random generator with a seed.

next

int next(int numbits)

Returns up to 32 random bits.

nextInt

int nextInt()

Returns the next pseudorandom, uniformly distributed int value from this random number generator's sequence.

nextInt

int nextInt(int n)

Returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.

nextLong

long nextLong()

Returns the next pseudorandom, uniformly distributed long value from this random number generator's sequence.

nextDouble

double nextDouble()

Returns the next pseudorandom, uniformly distributed double value between 0.0 and 1.0 from this random number generator's sequence.

nextDoubles

void nextDoubles(double[] d)

Returns a vector of pseudorandom, uniformly distributed double values between 0.0 and 1.0 from this random number generator's sequence.