Struct BetaCounters 

pub struct BetaCounters {
    pub alpha: u32,
    pub beta: u32,
}

A detector’s running Beta posterior counters. Always ≥1 each (Beta(1,1) uniform prior baseline) to avoid posterior_mean undefined when a detector has had no observations yet.

Fields

alpha: u32

beta: u32

Implementations

impl BetaCounters

pub fn posterior_mean(&self) -> f64

Posterior mean: α / (α + β). Falls in [0, 1]; the higher, the more reliable the detector is historically.

pub fn observations(&self) -> u32

Number of observations (excluding the prior) the posterior is built on. Useful for “trust the recent history” UI gates.

Trait Implementations

impl Clone for BetaCounters

fn clone(&self) -> BetaCounters

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BetaCounters

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

Formats the value using the given formatter.

impl Default for BetaCounters

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BetaCounters

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for BetaCounters

fn eq(&self, other: &BetaCounters) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for BetaCounters

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for BetaCounters

impl Eq for BetaCounters

impl StructuralPartialEq for BetaCounters