Struct Sampler 

pub struct Sampler {
    pub actuation: ActuationPass,
    pub budget: Budget,
}

A bounded without-replacement sampler composed from ActuationPass and Budget.

Fields

actuation: ActuationPass

Owner of support, selection, and applied effects.

budget: Budget

Owner of the sample-size ceiling.

Implementations

impl Sampler

pub fn new(distribution: Vec<u64>, sample_size: usize) -> Self

Build the ActuationPass support projection and an empty sample Budget.

pub fn weight(&self, item: usize) -> u64

Read one support weight, mapping ActuationPass’s absent allocation to zero.

pub fn contains_exec(&self, item: usize) -> bool

Executable selected-membership projection.

pub fn sample(&mut self, item: usize)

Couple ActuationPass.Actuate with Budget.TryAllocate(1).

pub fn zero(&mut self, item: usize) -> bool

Withdraw an unselected support item through ActuationPass.Deallocate.

pub fn draw_weighted(&mut self, item: usize, entropy: u64) -> bool

Weighted rejection over caller-supplied proposal and entropy.

pub fn draw_uniform(&mut self, item: usize) -> bool

Uniform-support admission over a caller-supplied proposal.