Struct OnlineStats 

pub struct OnlineStats { /* private fields */ }

Online mean/variance accumulator for building EntityBaseline values.

Uses Welford’s algorithm, so callers can update an environmental baseline one observation at a time without storing raw samples.

Implementations

impl OnlineStats

pub fn new() -> Self

pub fn push(&mut self, value: f64)

pub fn count(&self) -> u64

pub fn is_empty(&self) -> bool

pub fn mean(&self) -> f64

pub fn variance(&self) -> f64

Sample variance. Returns 0.0 until at least two samples exist.

pub fn std_dev(&self) -> f64

pub fn to_baseline( &self, entity: impl Into<String>, metric: impl Into<String>, ) -> EntityBaseline

Trait Implementations

impl Clone for OnlineStats

fn clone(&self) -> OnlineStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OnlineStats

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

Formats the value using the given formatter.

impl Default for OnlineStats

fn default() -> OnlineStats

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for OnlineStats

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for OnlineStats

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

where __S: Serializer,

Serialize this value into the given Serde serializer.