Struct RankSelection 

pub struct RankSelection {
    pub selection_pressure: f64,
}

Rank-based selection

Selection probability is based on rank rather than raw fitness.

Fields

selection_pressure: f64

Selection pressure (1.0 = uniform, 2.0 = strong pressure)

Implementations

impl RankSelection

pub fn new(selection_pressure: f64) -> Self

Create a new rank selection

Trait Implementations

impl Clone for RankSelection

fn clone(&self) -> RankSelection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RankSelection

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

Formats the value using the given formatter.

impl Default for RankSelection

fn default() -> Self

Returns the “default value” for a type.

impl<G: EvolutionaryGenome> SelectionOperator<G> for RankSelection

fn select<R: Rng>(&self, population: &[(G, f64)], rng: &mut R) -> usize

Select a single individual from the population

fn select_many<R: Rng>( &self, population: &[(G, f64)], count: usize, rng: &mut R, ) -> Vec<usize>

Select multiple individuals from the population