Struct LogNormalPosterior 

pub struct LogNormalPosterior {
    pub mu: f64,
    pub sigma_sq: f64,
    pub n: usize,
}

Log-normal posterior approximation for step sizes

Fields

mu: f64

Mean of log(σ)

sigma_sq: f64

Variance of log(σ)

n: usize

Number of observations

Implementations

impl LogNormalPosterior

pub fn vague() -> Self

Create with vague prior

pub fn new(mu: f64, sigma_sq: f64) -> Self

Create with informative prior

pub fn observe(&mut self, sigma: f64)

Update with an observation of a step size

pub fn mean(&self) -> f64

Mean of the distribution (in original space)

pub fn mode(&self) -> f64

Mode of the distribution (in original space)

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

Sample from the posterior

Trait Implementations

impl Clone for LogNormalPosterior

fn clone(&self) -> LogNormalPosterior

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogNormalPosterior

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

Formats the value using the given formatter.

impl Default for LogNormalPosterior

fn default() -> Self

Returns the “default value” for a type.