Struct QualitySignal 

pub struct QualitySignal {
    pub evr: f64,
    pub certainty: f64,
    pub void_distance: f64,
    pub gap_confidence: f64,
    pub combined: f64,
    pub level: ConfidenceLevel,
}

Confidence assessment for a single query result or point on S².

void_distance is signed: negative = inside category coverage (high gap_confidence), positive = in a void (low gap_confidence). The sigmoid gap_confidence = 1 / (1 + exp(sharpness · void_distance)) in Self::compute maps that sign convention onto [0, 1].

Fields

evr: f64

certainty: f64

void_distance: f64

gap_confidence: f64

combined: f64

evr × certainty × gap_confidence

level: ConfidenceLevel

Implementations

impl QualitySignal

pub fn compute(evr: f64, certainty: f64, void_dist: f64, sharpness: f64) -> Self

pub fn from_certainty(evr: f64, certainty: f64) -> Self

Simplified: no void distance available (e.g., raw k-NN results).

With no void-distance signal, certainty stands in for gap proximity: √certainty is a soft penalty (gentler than the certainty factor itself), making combined effectively evr × certainty^1.5. The 0.01 floor keeps a zero-certainty point from zeroing out combined entirely, so EVR and certainty differences still order results below the floor.

pub fn passes_threshold(&self, min_combined: f64) -> bool

Trait Implementations

impl Clone for QualitySignal

fn clone(&self) -> QualitySignal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for QualitySignal

impl Debug for QualitySignal

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

Formats the value using the given formatter.