Struct rand_distr::Poisson [−][src]
pub struct Poisson<F> where
F: Float + FloatConst,
Standard: Distribution<F>, { /* fields omitted */ }
Expand description
The Poisson distribution Poisson(lambda)
.
This distribution has a density function:
f(k) = lambda^k * exp(-lambda) / k!
for k >= 0
.
Example
use rand_distr::{Poisson, Distribution}; let poi = Poisson::new(2.0).unwrap(); let v = poi.sample(&mut rand::thread_rng()); println!("{} is from a Poisson(2) distribution", v);
Implementations
Trait Implementations
impl<F> Distribution<F> for Poisson<F> where
F: Float + FloatConst,
Standard: Distribution<F>,
[src]
impl<F> Distribution<F> for Poisson<F> where
F: Float + FloatConst,
Standard: Distribution<F>,
[src]Generate a random value of T
, using rng
as the source of randomness.
Create an iterator that generates random values of T
, using rng
as
the source of randomness. Read more
Auto Trait Implementations
impl<F> RefUnwindSafe for Poisson<F> where
F: RefUnwindSafe,
impl<F> UnwindSafe for Poisson<F> where
F: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
pub fn vzip(self) -> V