Struct ChangeRateEstimator 

pub struct ChangeRateEstimator { /* private fields */ }

Beta-Binomial estimator for change-rate p.

Maintains a Beta posterior with exponential decay and deterministic updates.

Implementations

impl ChangeRateEstimator

pub fn new( prior_alpha: f64, prior_beta: f64, decay: f64, min_observation_cells: usize, ) -> Self

Create a new estimator with the given priors and decay.

pub fn reset(&mut self)

Reset the posterior to the prior.

pub fn posterior_params(&self) -> (f64, f64)

Posterior parameters (α, β).

pub fn mean(&self) -> f64

Posterior mean E[p].

pub fn variance(&self) -> f64

Posterior variance Var[p].

pub fn observe(&mut self, cells_scanned: usize, cells_changed: usize)

Observe an update with scanned and changed cells.

pub fn upper_quantile(&self, q: f64) -> f64

Upper quantile of the Beta distribution using normal approximation.

Trait Implementations

impl Clone for ChangeRateEstimator

fn clone(&self) -> ChangeRateEstimator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChangeRateEstimator

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

Formats the value using the given formatter.