Struct rand::distributions::Beta

[+] Show declaration

pub struct Beta { /* fields omitted */ }

[−] Expand description

The Beta distribution with shape parameters alpha and beta.

Example

use rand::distributions::{Distribution, Beta};

let beta = Beta::new(2.0, 5.0);
let v = beta.sample(&mut rand::thread_rng());
println!("{} is from a Beta(2, 5) distribution", v);

Methods

impl Beta[−]

pub fn new(alpha: f64, beta: f64) -> Beta[−]

Construct an object representing the Beta(alpha, beta) distribution.

Panics if shape <= 0 or scale <= 0.

Trait Implementations

impl Distribution<f64> for Beta[+]

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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.

Important traits for DistIter<'a, D, R, T>

impl<'a, D, R, T> Iterator for DistIter<'a, D, R, T> where
    D: Distribution<T>,
    R: Rng + 'a,  type Item = T;

fn sample_iter<'a, R>(&'a self, rng: &'a mut R) -> DistIter<'a, Self, R, T> where
    Self: Sized,
    R: Rng, [−]

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

impl Clone for Beta[+]

[+] Show hidden undocumented items

fn clone(&self) -> Beta[−]

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Beta

impl Debug for Beta[+]

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

Formats the value using the given formatter.