Enum HandleUnknown 

pub enum HandleUnknown {
    Error,
    UseEncodedValue,
}

How OrdinalEncoder treats categories at transform time that were not seen during fit.

Mirrors scikit-learn’s OrdinalEncoder(handle_unknown=...) parameter (sklearn/preprocessing/_encoders.py:1262), which accepts 'error' and 'use_encoded_value'.

Variants

Error

Raise an error on any unknown category (scikit-learn’s default handle_unknown='error'). This is also the default here.

UseEncodedValue

Encode unknown categories with the configured unknown_value sentinel (scikit-learn’s handle_unknown='use_encoded_value'). Requires unknown_value to be set.

Trait Implementations

impl Clone for HandleUnknown

fn clone(&self) -> HandleUnknown

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HandleUnknown

impl Debug for HandleUnknown

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

Formats the value using the given formatter.

impl Default for HandleUnknown

fn default() -> HandleUnknown

Returns the “default value” for a type.

impl Eq for HandleUnknown

impl PartialEq for HandleUnknown

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