Struct solana_evm_loader_program::scope::evm::secp256k1::rand::distributions::Dirichlet

[+] Show declaration

pub struct Dirichlet { /* fields omitted */ }

[−] Expand description

The dirichelet distribution Dirichlet(alpha).

The Dirichlet distribution is a family of continuous multivariate probability distributions parameterized by a vector alpha of positive reals. It is a multivariate generalization of the beta distribution.

Example

use rand::prelude::*;
use rand::distributions::Dirichlet;

let dirichlet = Dirichlet::new(vec![1.0, 2.0, 3.0]);
let samples = dirichlet.sample(&mut rand::thread_rng());
println!("{:?} is from a Dirichlet([1.0, 2.0, 3.0]) distribution", samples);

Implementations

impl Dirichlet[−]

pub fn new<V>(alpha: V) -> Dirichlet where
    V: Into<Vec<f64, Global>>, [−]

Construct a new Dirichlet with the given alpha parameter alpha.

Panics

• if alpha.len() < 2

pub fn new_with_param(alpha: f64, size: usize) -> Dirichlet[−]

Construct a new Dirichlet with the given shape parameter alpha and size.

Panics

• if alpha <= 0.0
• if size < 2

Trait Implementations

impl Clone for Dirichlet[+]

[+] Show hidden undocumented items

pub fn clone(&self) -> Dirichlet[−]

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Dirichlet[+]

[+] Show hidden undocumented items

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

Formats the value using the given formatter.

impl Distribution<Vec<f64, Global>> for Dirichlet[+]

[+] Show hidden undocumented items

pub fn sample<R>(&self, rng: &mut R) -> Vec<f64, Global> where
    R: Rng + ?Sized, [−]

Generate a random value of T, using rng as the source of randomness.

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

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