Struct rand::distributions::Poisson

pub struct Poisson { /* fields omitted */ }

👎 Deprecated since 0.7.0:

moved to rand_distr crate

[−] Expand description

The Poisson distribution Poisson(lambda).

This distribution has a density function: f(k) = lambda^k * exp(-lambda) / k! for k >= 0.

Implementations

impl Poisson

pub fn new(lambda: f64) -> Poisson[−]

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

Trait Implementations

impl Clone for Poisson

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fn clone(&self) -> Poisson[−]

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Poisson

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

Formats the value using the given formatter.

impl Distribution<u64> for Poisson

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fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> u64[−]

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 Poisson