Struct rand_distr::Binomial

pub struct Binomial { /* fields omitted */ }

[−] Expand description

The binomial distribution Binomial(n, p).

This distribution has density function: f(k) = n!/(k! (n-k)!) p^k (1-p)^(n-k) for k >= 0.

Example

use rand_distr::{Binomial, Distribution};

let bin = Binomial::new(20, 0.3).unwrap();
let v = bin.sample(&mut rand::thread_rng());
println!("{} is from a binomial distribution", v);

Implementations

impl Binomial

pub fn new(n: u64, p: f64) -> Result<Binomial, Error>[−]

Construct a new Binomial with the given shape parameters n (number of trials) and p (probability of success).

Trait Implementations

impl Clone for Binomial

[+] Show hidden undocumented items

fn clone(&self) -> Binomial[−]

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Binomial

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

Formats the value using the given formatter.

impl Distribution<u64> for Binomial

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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.

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

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

impl Copy for Binomial