Struct rand::distributions::Exp

pub struct Exp { /* fields omitted */ }

👎 Deprecated since 0.7.0:

moved to rand_distr crate

[−] Expand description

The exponential distribution Exp(lambda).

This distribution has density function: f(x) = lambda * exp(-lambda * x) for x > 0.

Note that Exp1 is an optimised implementation for lambda = 1.

Implementations

impl Exp

pub fn new(lambda: f64) -> Exp[−]

Construct a new Exp with the given shape parameter lambda. Panics if lambda <= 0.

Trait Implementations

impl Clone for Exp

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fn clone(&self) -> Exp[−]

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Debug for Exp

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fn fmt(&self, f: &mut Formatter<'_>) -> Result[−]

Formats the value using the given formatter.

impl Distribution<f64> for Exp

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fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> f64[−]

Generate a random value of T, using rng as the source of randomness.

fn sample_iter<R>(self, rng: R) -> DistIter<Self, R, T> where
    R: Rng,
    Self: Sized, [−]

Create an iterator that generates random values of T, using rng as the source of randomness.

impl Copy for Exp