Enum BSplineIdentifiability 

pub enum BSplineIdentifiability {
    None,
    WeightedSumToZero {
        weights: Option<Array1<f64>>,
    },
    RemoveLinearTrend,
    OrthogonalToDesignColumns {
        columns: Array2<f64>,
        weights: Option<Array1<f64>>,
    },
    FrozenTransform {
        transform: Array2<f64>,
    },
}

Per-smooth identifiability policy for 1D B-spline bases.

These constraints are applied directly in the builder via a reparameterization B_constrained = B * Z, and every penalty matrix is projected as S_constrained = Z' S Z, so solver geometry stays consistent.

Variants

None

Keep unconstrained basis columns.

WeightedSumToZero

Enforce weighted sum-to-zero: B' w = 0 (or unweighted when weights=None).

Fields

weights: Option<Array1<f64>>

RemoveLinearTrend

Remove intercept + linear trend in coefficient space using Greville geometry.

OrthogonalToDesignColumns

Enforce orthogonality to supplied design columns C (n x q): B_c' W C = 0 (or unweighted when weights=None).

To enforce [intercept, x, ...], provide columns with those columns.

Fields

columns: Array2<f64>

weights: Option<Array1<f64>>

FrozenTransform

Apply an explicit coefficient-space transform Z learned at fit time.

This freezes identifiability behavior so prediction cannot drift based on new-data distribution. The constrained basis is B * Z.

Fields

transform: Array2<f64>

Trait Implementations

impl Clone for BSplineIdentifiability

fn clone(&self) -> BSplineIdentifiability

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BSplineIdentifiability

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

Formats the value using the given formatter.

impl Default for BSplineIdentifiability

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BSplineIdentifiability

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for BSplineIdentifiability

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

where __S: Serializer,

Serialize this value into the given Serde serializer.