Enum MeasureProvenance 

pub enum MeasureProvenance {
    Uniform,
    FisherMass(MetricProvenance),
}

Where a RowSamplingMeasure came from — the honest record of whether the enrichment is real (Fisher-mass driven) or the graceful uniform fallback.

Variants

Uniform

No behavioral signal was available (Euclidean metric, or a degenerate metric that produced no usable mass). The measure is exactly uniform: every row carries weight 1 / n. This is bit-for-bit “look at every row equally” — today’s behavior with no harvest.

FisherMass(MetricProvenance)

The measure is ∝ tr(M_n) from a factored RowMetric. Behaviorally live rows carry proportionally more sampling weight. The carried MetricProvenance is the metric provenance that produced the mass, so a consumer can certify the inner product behind the enrichment.

Trait Implementations

impl Clone for MeasureProvenance

fn clone(&self) -> MeasureProvenance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MeasureProvenance

impl Debug for MeasureProvenance

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

Formats the value using the given formatter.

impl Eq for MeasureProvenance

impl PartialEq for MeasureProvenance

fn eq(&self, other: &MeasureProvenance) -> 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 StructuralPartialEq for MeasureProvenance