Struct Beta

pub struct Beta<F>
where
    F: Float,
    Open01: Distribution<F>,
{ /* private fields */ }

The Beta distribution with shape parameters alpha and beta.

Example

use rand_distr::{Distribution, Beta};

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

Implementations

impl<F> Beta<F>

where F: Float, Open01: Distribution<F>,

pub fn new(alpha: F, beta: F) -> Result<Beta<F>, BetaError>

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

Trait Implementations

impl<F> Clone for Beta<F>

where F: Float + Clone, Open01: Distribution<F>,

fn clone(&self) -> Beta<F>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<F> Debug for Beta<F>

where F: Float + Debug, Open01: Distribution<F>,

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

Formats the value using the given formatter.

impl<F> Distribution<F> for Beta<F>

where F: Float, Open01: Distribution<F>,

fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> F

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.

fn map<F, S>(self, func: F) -> DistMap<Self, F, T, S>

where F: Fn(T) -> S, Self: Sized,

Create a distribution of values of ‘S’ by mapping the output of Self through the closure F

impl<F> Copy for Beta<F>

where F: Float + Copy, Open01: Distribution<F>,