Struct Sampler 

pub struct Sampler { /* private fields */ }

Seeded sampler shared across a --minima run.

Implementations

impl Sampler

pub fn new(seed: u64, sobol: bool) -> Self

pub fn uniform(&mut self) -> f64

A uniform deviate in [0, 1) (avoids the gen keyword/method so the code stays edition-2024 clean).

pub fn standard_normal(&mut self) -> f64

A standard-normal deviate via Box–Muller (avoids a rand_distr dep).

pub fn sample( &mut self, x0: &[Number], lo: &[Number], hi: &[Number], has_box: bool, jitter: f64, ) -> Vec<Number>

Draw a fresh start point.

• has_box true ⇒ sample uniformly (Sobol’ or PRNG) in [lo, hi].
• otherwise ⇒ x0 + jitter · N(0, I) (the unbounded fallback).

pub fn perturb(&mut self, anchor: &[Number], scale: &[Number]) -> Vec<Number>

anchor + scale · N(0, I) — a local perturbation (basinhopping step, flooding re-seed, tunnelling outward step). scale may be a scalar or per-dimension (length-1 ⇒ isotropic).