Enum CenterStrategy 

pub enum CenterStrategy {
    Auto(Box<CenterStrategy>),
    DuchonSpectral {
        knots: Box<CenterStrategy>,
        basis: DuchonSpectralBasis,
    },
    UserProvided(Array2<f64>),
    EqualMass {
        num_centers: usize,
    },
    EqualMassCovarRepresentative {
        num_centers: usize,
    },
    FarthestPoint {
        num_centers: usize,
    },
    KMeans {
        num_centers: usize,
        max_iter: usize,
    },
    UniformGrid {
        points_per_dim: usize,
    },
}

Spatial center selection strategy.

num_centers is the exact number of knot/center rows selected by the strategy. Polynomial nullspace columns are added separately by each basis builder and must never be folded into this count.

Variants

Auto(Box<CenterStrategy>)

DuchonSpectral

Select a potentially rich knot cloud, then retain an explicit low-dimensional spectral subspace of its kernel. The knot strategy and retained rank are independent by construction.

Fields

knots: Box<CenterStrategy>

basis: DuchonSpectralBasis

UserProvided(Array2<f64>)

EqualMass

Joint multidimensional equal-mass partitioning in the full smooth space.

Fields

num_centers: usize

EqualMassCovarRepresentative

Covariate-representative equal-mass partitioning along one selected axis.

Fields

num_centers: usize

FarthestPoint

Fields

num_centers: usize

KMeans

Fields

num_centers: usize

max_iter: usize

UniformGrid

Fields

points_per_dim: usize

Implementations

impl CenterStrategy

pub fn planned_num_centers(&self, d: usize) -> usize

The number of centers this strategy will select, computed from the strategy alone (no data pass). d is the smooth’s covariate dimensionality, needed only by UniformGrid whose count is points_per_dim^d. Adaptive-fit provenance consults this before freeze, because the frozen center matrix can contain periodic image expansion and therefore is not the requested resolution for the next refit.

Trait Implementations

impl Clone for CenterStrategy

fn clone(&self) -> CenterStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CenterStrategy

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CenterStrategy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CenterStrategy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.