Trait rv::traits::Variance

pub trait Variance<X> {
    fn variance(&self) -> Option<X>;
}

Defines the distribution variance

Required Methods

fn variance(&self) -> Option<X>

Returns None if the variance is undefined

Implementors

• impl Variance<f64> for Bernoulli

• impl Variance<f64> for Beta

• impl Variance<f64> for ChiSquared

• impl Variance<f32> for ChiSquared

• impl Variance<f64> for Exponential

• impl Variance<f32> for Exponential

• impl Variance<f64> for Gamma

• impl Variance<f64> for Gaussian

• impl Variance<f64> for InvGamma

• impl Variance<f64> for Laplace

• impl Variance<f32> for Laplace

• impl Variance<f64> for Poisson

• impl Variance<f64> for StudentsT

• impl Variance<f32> for StudentsT

• impl Variance<f64> for Uniform

• impl Variance<f32> for Uniform