Struct rand::distributions::gamma::ChiSquared

pub struct ChiSquared {
    // some fields omitted
}

Unstable (rand)

: use rand from crates.io

The chi-squared distribution χ²(k), where k is the degrees of freedom.

For k > 0 integral, this distribution is the sum of the squares of k independent standard normal random variables. For other k, this uses the equivalent characterization χ²(k) = Gamma(k/2, 2).

Methods

impl ChiSquared

fn new(k: f64) -> ChiSquared

Unstable (rand)

: use rand from crates.io

Create a new chi-squared distribution with degrees-of-freedom k. Panics if k < 0.

Trait Implementations

impl Sample<f64> for ChiSquared

fn sample<R: Rng>(&mut self, rng: &mut R) -> f64

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

impl IndependentSample<f64> for ChiSquared

fn ind_sample<R: Rng>(&self, rng: &mut R) -> f64

Generate a random value.