Struct rand::distributions::exponential::Exp1

pub struct Exp1(pub f64);

A wrapper around an f64 to generate Exp(1) random numbers.

See Exp for the general exponential distribution.

Implemented via the ZIGNOR variant[1] of the Ziggurat method. The exact description in the paper was adjusted to use tables for the exponential distribution rather than normal.

[1]: Jurgen A. Doornik (2005). An Improved Ziggurat Method to Generate Normal Random Samples. Nuffield College, Oxford

Example

use rand::distributions::exponential::Exp1;

let Exp1(x) = rand::random();
println!("{}", x);

Trait Implementations

impl Debug for Exp1

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl Copy for Exp1

impl Clone for Exp1

fn clone(&self) -> Exp1

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Rand for Exp1

fn rand<R>(rng: &mut R) -> Exp1 where
    R: Rng, 

Generates a random instance of this type using the specified source of randomness.