Struct rand_distr::Geometric [−][src]
pub struct Geometric { /* fields omitted */ }
Expand description
The geometric distribution Geometric(p)
bounded to [0, u64::MAX]
.
This is the probability distribution of the number of failures before the
first success in a series of Bernoulli trials. It has the density function
f(k) = (1 - p)^k p
for k >= 0
, where p
is the probability of success
on each trial.
This is the discrete analogue of the exponential distribution.
Note that StandardGeometric
is an optimised
implementation for p = 0.5
.
Example
use rand_distr::{Geometric, Distribution}; let geo = Geometric::new(0.25).unwrap(); let v = geo.sample(&mut rand::thread_rng()); println!("{} is from a Geometric(0.25) distribution", v);
Implementations
Trait Implementations
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 RefUnwindSafe for Geometric
impl UnwindSafe for Geometric
Blanket Implementations
Mutably borrows from an owned value. Read more
pub fn vzip(self) -> V