Struct Bernoulli 

pub struct Bernoulli(pub f32);

A Bernoulli distribution.

Generates boolean values such that:

• P(true) = p
• P(false) = 1 - p.

given a parameter p ∈ [0.0, 1.0].

Tuple Fields

0: f32

Trait Implementations

impl Clone for Bernoulli

fn clone(&self) -> Bernoulli

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Bernoulli

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

Formats the value using the given formatter.

impl Distrib for Bernoulli

fn sample(&self, rng: &mut DefaultRng) -> bool

Returns booleans sampled from a Bernoulli distribution.

The result is true with probability self.0 and false with probability 1 - self.0.

Example

use core::array;
use retrofire_core::math::rand::*;
let rng = &mut DefaultRng::default();

let bern = Bernoulli(0.6); // P(true) = 0.6
let bools = array::from_fn(|_| bern.sample(rng));
assert_eq!(bools, [true, true, false, true, false, true]);

type Sample = bool

The type of the elements of the sample space of Self, also called “outcomes”.

fn samples(&self, rng: &mut DefaultRng) -> impl Iterator<Item = Self::Sample>

Returns an iterator that yields samples from self indefinitely.

impl Copy for Bernoulli