Struct LogNormalMixtureSampler 

pub struct LogNormalMixtureSampler { /* private fields */ }

Log-Normal Mixture Model sampler for positive-only distributions.

Implementations

impl LogNormalMixtureSampler

pub fn new(seed: u64, config: LogNormalMixtureConfig) -> Result<Self, String>

Create a new Log-Normal mixture sampler.

pub fn sample(&mut self) -> f64

Sample a value from the mixture.

pub fn sample_decimal(&mut self) -> Decimal

Sample a value as Decimal.

pub fn sample_with_component(&mut self) -> SampleWithComponent

Sample a value with component information.

pub fn sample_n(&mut self, n: usize) -> Vec<f64>

Sample multiple values.

pub fn sample_n_decimal(&mut self, n: usize) -> Vec<Decimal>

Sample multiple values as Decimals.

pub fn reset(&mut self, seed: u64)

Reset the sampler with a new seed.

pub fn config(&self) -> &LogNormalMixtureConfig

Get the configuration.

pub fn expected_value(&self) -> f64

Get the expected value of the mixture.

pub fn ppf(&self, u: f64) -> f64

v4.1.6+: inverse CDF (quantile) for the mixture, computed via bisection. Given u ∈ (0, 1) returns the value x such that F(x) = u, where F is the mixture CDF (weighted sum of the component log-normal CDFs). Result is clamped to [min_value, max_value] and rounded to decimal_places.

pub fn ppf_decimal(&self, u: f64) -> Decimal

v4.1.6+: inverse CDF as Decimal.

Trait Implementations

impl Clone for LogNormalMixtureSampler

fn clone(&self) -> LogNormalMixtureSampler

Returns a duplicate of the value.

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

Performs copy-assignment from source.