Struct Uniform 

pub struct Uniform<T> { /* private fields */ }

Continuous uniform distribution on [a, b].

Example

use numeris::stats::{Uniform, ContinuousDistribution};

let u = Uniform::new(0.0_f64, 1.0).unwrap();
assert!((u.pdf(0.5) - 1.0).abs() < 1e-14);
assert!((u.cdf(0.5) - 0.5).abs() < 1e-14);

Implementations

impl<T: FloatScalar> Uniform<T>

pub fn new(a: T, b: T) -> Result<Self, StatsError>

Create a uniform distribution on [a, b]. Requires a < b.

impl<T: FloatScalar> Uniform<T>

pub fn sample(&self, rng: &mut Rng) -> T

Draw a random sample from this distribution.

pub fn sample_array<const K: usize>(&self, rng: &mut Rng) -> [T; K]

Fill a fixed-size array with independent samples.

Trait Implementations

impl<T: Clone> Clone for Uniform<T>

fn clone(&self) -> Uniform<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: FloatScalar> ContinuousDistribution<T> for Uniform<T>

fn pdf(&self, x: T) -> T

Probability density function.

fn ln_pdf(&self, x: T) -> T

Natural log of the probability density function.

fn cdf(&self, x: T) -> T

Cumulative distribution function P(X ≤ x).

fn quantile(&self, p: T) -> T

Quantile function (inverse CDF). Returns x such that P(X ≤ x) = p.

fn mean(&self) -> T

Expected value E[X].

fn variance(&self) -> T

Variance Var(X).

impl<T: Debug> Debug for Uniform<T>

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

Formats the value using the given formatter.

impl<T: Copy> Copy for Uniform<T>