Struct Geometric 

pub struct Geometric { /* private fields */ }

Geometric Distribution

Example Usage

let mut geometric = rand_simple::Geometric::new(1192u32);

// Default parameters
assert_eq!(format!("{geometric}"), "Geometric(Probability) = Geometric(0.5)");
println!("Number of trials until success with probability θ = 0.5 -> {}", geometric.sample());

// Updating the probability parameter
let probability: f64 = 0.8f64;
let result: Result<f64, &str> = geometric.try_set_params(probability);
assert_eq!(format!("{geometric}"), "Geometric(Probability) = Geometric(0.8)");
println!("Number of trials until success with probability θ = {} -> {}", probability, geometric.sample());

Implementations

impl Geometric

pub fn new(_seed: u32) -> Self

コンストラクタ

• _seed - 乱数の種

pub fn sample(&mut self) -> u64

ある確率の事象が初めて生じるまでの試行回数を返す

pub fn try_set_params(&mut self, probability: f64) -> Result<f64, &str>

確率変数のパラメータを変更する

• probability - 発生確率

Trait Implementations

impl Display for Geometric

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

Formatter for displaying in functions like println! macro