Enum BinnerKind 

pub enum BinnerKind {
    Uniform(UniformBinning),
    Categorical(CategoricalBinning),
    KMeans(KMeansBinning),
}

Concrete binning strategy enum, eliminating Box<dyn BinningStrategy> heap allocations per feature per leaf.

This is used internally by HoeffdingTree leaf states. Each variant delegates to the corresponding strategy impl.

Variants

Uniform(UniformBinning)

Equal-width binning (default).

Categorical(CategoricalBinning)

Categorical binning – one bin per observed distinct value.

KMeans(KMeansBinning)

K-means binning (feature-gated).

Implementations

impl BinnerKind

pub fn uniform() -> BinnerKind

Create a new uniform binner (the default strategy).

pub fn categorical() -> BinnerKind

Create a new categorical binner.

pub fn kmeans() -> BinnerKind

Create a new k-means binner.

pub fn observe(&mut self, value: f64)

Observe a single value.

pub fn compute_edges(&self, n_bins: usize) -> BinEdges

Compute bin edges from observed values.

pub fn reset(&mut self)

Reset observed state.

pub fn is_categorical(&self) -> bool

Whether this binner is for a categorical feature.

pub fn clone_fresh(&self) -> BinnerKind

Create a fresh instance with the same variant but no data.

Trait Implementations

impl Clone for BinnerKind

fn clone(&self) -> BinnerKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BinnerKind

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

Formats the value using the given formatter.