Struct ActivePenaltyInfo 

pub struct ActivePenaltyInfo {
    pub source: PenaltySource,
    pub original_index: usize,
    pub effective_rank: usize,
    pub normalization_scale: f64,
    pub kronecker_factors: Option<Vec<Array2<f64>>>,
    pub structural_null_frame: Option<Array2<f64>>,
}

Metadata for one retained penalty coordinate.

This type is active-only by construction. In particular it has no active flag or optional drop reason: those fields allowed a metadata position to exist without a corresponding matrix and made positional indexing silently wrong after an earlier candidate was dropped.

Fields

source: PenaltySource

original_index: usize

effective_rank: usize

normalization_scale: f64

kronecker_factors: Option<Vec<Array2<f64>>>

Kronecker factors preserved from tensor penalty construction. When present, spectral decomposition can use per-factor eigendecomposition.

structural_null_frame: Option<Array2<f64>>

Structural null frame carried from the candidate’s ConstructiveQuadratic (see ConstructiveQuadratic::with_structural_null_frame): the declared null space of the seminorm this penalty represents, in the penalty’s own coefficient chart. Downstream rebuilds (rebuild_metric_consistent_ridge at the term-collection chokepoint) re-attach it so the double-penalty topology stays a carried theorem through every chart instead of a per-chart rank measurement (#2445). Runtime-only, like kronecker_factors: a frozen replay rebuilds it from the basis factory, which is the single source.

Trait Implementations

impl Clone for ActivePenaltyInfo

fn clone(&self) -> ActivePenaltyInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ActivePenaltyInfo

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ActivePenaltyInfo

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ActivePenaltyInfo

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

where __S: Serializer,

Serialize this value into the given Serde serializer.