Enum AnomalySignal 

pub enum AnomalySignal {
    PriceDrift {
        ratio: f64,
    },
    ListingReorder {
        jaccard: f64,
    },
    Staleness {
        age_secs: i64,
    },
    Outlier {
        z_score: f64,
    },
    CardinalityShift {
        from: usize,
        to: usize,
    },
    None,
}

The five anomaly kinds the detector emits.

Variants

PriceDrift

Numeric value lies more than k * IQR from the rolling median. ratio is the observed / median ratio.

Fields

ratio: f64

Observed / median.

ListingReorder

Ordered-list Jaccard distance vs the previous ordering is above the threshold. jaccard is the distance in [0.0, 1.0].

Fields

jaccard: f64

Distance from the previous observation.

Staleness

Timestamp is older than the staleness threshold. age_secs is now - observed.

Fields

age_secs: i64

Seconds since the published timestamp.

Outlier

Numeric z-score across the rolling window exceeds the outlier threshold (default 3.0).

Fields

z_score: f64

z-score of the observation.

CardinalityShift

Text-field unique-value count changed by more than the cardinality-shift threshold (default 50%) between windows.

Fields

from: usize

Previous window’s unique-count.

to: usize

Current window’s unique-count.

None

No anomaly — included for completeness so callers can use a single return type.

Trait Implementations

impl Clone for AnomalySignal

fn clone(&self) -> AnomalySignal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AnomalySignal

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AnomalySignal

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for AnomalySignal

fn eq(&self, other: &AnomalySignal) -> 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 AnomalySignal

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AnomalySignal