Struct HeuristicValues 

pub struct HeuristicValues { /* private fields */ }

Per-feature Gini scores used to order features and split candidates when the heuristic ordering is enabled.

Implementations

impl HeuristicValues

pub fn new(num_features: usize) -> Self

Neutral scores (Gini 1.0) for num_features features, in index order.

pub fn set_feature_ginis( &mut self, feature: usize, split_indices: Vec<usize>, best_gini: f64, )

Stores the split order and best Gini of feature. split_indices must already be sorted best first.

pub fn sort_by_gini(&mut self)

Sorts features by their best Gini, lowest first.

Trait Implementations

impl Clone for HeuristicValues

fn clone(&self) -> HeuristicValues

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HeuristicValues

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

Formats the value using the given formatter.