Enum EncodingSpec 

pub enum EncodingSpec {
    Float,
    IntAsFloat,
    BoolAsFloat,
    Categorical {
        ordering: CategoryOrdering,
    },
}

Per-column encoding directive. Each feature/label column must have one and only one of these. Phase 1 supports four encodings; richer schemes (one-hot, embedding lookup) are deferred to Phase 3.

Variants

Float

Column::Float → f64 pass-through.

IntAsFloat

Column::Int → f64 via as f64 cast (lossy for |x| ≥ 2^53; caller’s responsibility to know).

BoolAsFloat

Column::Bool → 0.0 / 1.0.

Categorical

Column::Str | Categorical | CategoricalAdaptive → integer code from a fresh ByteDictionary (cast to f64). Dictionary built over all source rows before any split is materialized.

Fields

ordering: CategoryOrdering

Trait Implementations

impl Clone for EncodingSpec

fn clone(&self) -> EncodingSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EncodingSpec

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

Formats the value using the given formatter.

impl PartialEq for EncodingSpec

fn eq(&self, other: &EncodingSpec) -> 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 EncodingSpec