Struct SearchConfig 

pub struct SearchConfig {
    pub max_depth: usize,
    pub min_sup: usize,
    pub max_time: f64,
    pub max_gap: usize,
    pub max_error: usize,
    pub is_root: bool,
    pub use_heuristic: bool,
    pub fast_d2: bool,
    pub point_selector: PointSelector,
    pub nb_runs: usize,
    pub discrepancy: usize,
    pub budget: usize,
}

Settings of a search, and the per-node state derived from them.

Fields

max_depth: usize

Maximum depth of the tree (remaining depth, below the root).

min_sup: usize

Minimum number of instances in each leaf.

max_time: f64

Time limit in seconds.

max_gap: usize

Error gap tolerated with respect to the optimum; 0 for an exact search.

max_error: usize

Initial upper bound on the error.

is_root: bool

Whether this configuration is the root’s.

use_heuristic: bool

Order features and thresholds by Gini impurity.

fast_d2: bool

Use the specialised solver for depth-2 subtrees.

point_selector: PointSelector

How thresholds are picked inside an interval.

nb_runs: usize

Number of passes run so far (anytime search).

discrepancy: usize

Discrepancy used on the path to this node (anytime search).

budget: usize

Discrepancy budget of the current pass (anytime search).

Implementations

impl SearchConfig

pub fn new( min_sup: usize, max_depth: usize, max_time: f64, max_gap: usize, max_error: usize, use_heuristic: bool, fast_d2: bool, split_strategy: PointSelector, ) -> Self

A root configuration with the given settings.

pub fn derive_left(&self) -> Self

The configuration of the first child searched: one level shallower, with part of the gap.

pub fn derive_right(&self, left_gap: usize) -> Self

The configuration of the second child searched, given the gap already handed to the first.

Trait Implementations

impl Clone for SearchConfig

fn clone(&self) -> SearchConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SearchConfig

impl Debug for SearchConfig

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

Formats the value using the given formatter.