Struct Elitism 

pub struct Elitism { /* private fields */ }

Preserves the best n individuals from the current population.

When n is 1, returns the single best individual. For larger values, uses partial sorting to efficiently find the top n without fully sorting the population.

Examples

use evolve::operators::sequential::selection::Elitism;
use std::num::NonZero;

// Keep the single best individual each generation
let elite = Elitism::default();

// Keep the top 5
let elite = Elitism::new(NonZero::new(5).unwrap());

Implementations

impl Elitism

pub fn new(amount: NonZero<usize>) -> Self

Creates a new Elitism operator that preserves the best n individuals.

Trait Implementations

impl Clone for Elitism

fn clone(&self) -> Elitism

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Elitism

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

Formats the value using the given formatter.

impl Default for Elitism

fn default() -> Self

Returns the “default value” for a type.

impl<G, F, Fe, R, C> GeneticOperator<G, F, Fe, R, C> for Elitism

where F: PartialOrd + Clone, Fe: FitnessEvaluator<G, F>, C: FitnessComparator<F>, G: Clone,

fn apply( &self, state: &State<G, F>, ctx: &mut Context<'_, Fe, R, C>, ) -> Offspring<G, F>

Applies this operator to a borrowed state and returns the resulting offspring.

fn transform( &self, state: State<G, F>, ctx: &mut Context<'_, Fe, R, C>, ) -> Offspring<G, F>

Applies this operator to an owned state, allowing in-place modification.

impl Copy for Elitism