Struct spdkit::population::Population

pub struct Population<G>where
    G: Genome,{ /* private fields */ }

A population is a collection of evaluated individuals (fitness).

Implementations

impl<G> Population<G>where G: Genome,

pub fn individuals(&self) -> &[Individual<G>]

Return a list of individuals in this population.

pub fn size(&self) -> usize

Return population size.

pub fn is_oversized(&self) -> bool

Return true of there are too many individuals in this population.

pub fn size_limit(&self) -> usize

Return population size limit.

pub fn evaluate_with<F: EvaluateFitness<G>>(&mut self, fitness: &mut F)

Re-evaluate individuals in population with fitness function.

pub fn weight_with(&mut self, weight: f64)

Re-evaluate individual fitness with individual weight.

pub fn build<F>(indvs: Vec<Individual<G>>, fitness: &mut F) -> Selfwhere F: EvaluateFitness<G>,

Build a population from individuals indvs and fitness function. The population size limit is set as the size of indvs.

pub fn with_size_limit(self, limit: usize) -> Self

Construct with population size limit.

impl<G> Population<G>where G: Genome,

pub fn members(&self) -> impl Iterator<Item = Member<'_, G>>

Return a member view of individuals with associated fitness values.

pub fn best_member(&self) -> Option<Member<'_, G>>

Return a member view of the best individual in this population.

impl<G> Population<G>where G: Genome,

pub fn survive(&mut self) -> usize

Remove some bad performing individuals to fit the population size limit constrain.

Returns

• return the number of individuals to be removed.

Trait Implementations

impl<G> Clone for Population<G>where G: Genome + Clone,

fn clone(&self) -> Population<G>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<G> Debug for Population<G>where G: Genome + Debug,

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

Formats the value using the given formatter.