Struct SbxCrossover 

pub struct SbxCrossover {
    pub eta: f64,
    pub crossover_probability: f64,
}

Simulated Binary Crossover (SBX)

SBX generates offspring from parents using a spread factor that simulates single-point crossover for binary strings.

Reference: Deb, K., & Agrawal, R. B. (1995). Simulated Binary Crossover for Continuous Search Space.

Fields

eta: f64

Distribution index (typically 2-20) Higher values = offspring closer to parents

crossover_probability: f64

Per-gene crossover probability

Implementations

impl SbxCrossover

pub fn new(eta: f64) -> Self

Create a new SBX crossover with the given distribution index

pub fn with_probability(self, probability: f64) -> Self

Set the per-gene crossover probability

Trait Implementations

impl BoundedCrossoverOperator<RealVector> for SbxCrossover

fn crossover_bounded<R: Rng>( &self, parent1: &RealVector, parent2: &RealVector, bounds: &MultiBounds, rng: &mut R, ) -> OperatorResult<(RealVector, RealVector)>

Apply bounded crossover to two parents

impl Clone for SbxCrossover

fn clone(&self) -> SbxCrossover

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl CrossoverOperator<RealVector> for SbxCrossover

fn crossover<R: Rng>( &self, parent1: &RealVector, parent2: &RealVector, rng: &mut R, ) -> OperatorResult<(RealVector, RealVector)>

Apply crossover to two parents and produce two offspring

fn crossover_probability(&self) -> f64

Get the probability of crossover being applied

impl Debug for SbxCrossover

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

Formats the value using the given formatter.