Struct rand::distributions::ChiSquared

[+] Show declaration

pub struct ChiSquared { /* fields omitted */ }

👎 Deprecated since 0.7.0:

moved to rand_distr crate

[−] Expand description

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 characterisation χ²(k) = Gamma(k/2, 2).

Implementations

impl ChiSquared[−]

pub fn new(k: f64) -> ChiSquared[−]

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

Trait Implementations

impl Clone for ChiSquared[+]

[+] Show hidden undocumented items

fn clone(&self) -> ChiSquared[−]

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ChiSquared

impl Debug for ChiSquared[+]

[+] Show hidden undocumented items

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

Formats the value using the given formatter.

impl Distribution<f64> for ChiSquared[+]

[+] Show hidden undocumented items

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

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

fn sample_iter<R>(self, rng: R) -> DistIter<Self, R, T> where
    R: Rng,
    Self: Sized, [−]

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