Struct ParetoSampler 

pub struct ParetoSampler { /* private fields */ }

Pareto distribution sampler.

Implementations

impl ParetoSampler

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

Create a new Pareto sampler.

pub fn sample(&mut self) -> f64

Sample a value from the distribution.

pub fn sample_decimal(&mut self) -> Decimal

Sample a value as Decimal.

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

v4.1.6+: inverse CDF (quantile function). Given u ∈ (0, 1) returns the Pareto quantile x_min * (1-u)^(-1/α) clamped by max_value and rounded to decimal_places. Used by the copula-correlation path to turn a copula’s uniform draws into rank-preserving amount samples.

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

v4.1.6+: inverse CDF as Decimal.

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

Sample multiple values.

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

Reset the sampler with a new seed.

pub fn config(&self) -> &ParetoConfig

Get the configuration.

Trait Implementations

impl Clone for ParetoSampler

fn clone(&self) -> ParetoSampler

Returns a duplicate of the value.

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

Performs copy-assignment from source.