Struct genevo::selection::proportionate::UniversalSamplingSelector

source · [−]

pub struct UniversalSamplingSelector { /* private fields */ }

Expand description

The UniversalSamplingSelector implements stochastic fitness proportionate selection. The first candidate is picked randomly. All other candidates are picked by equidistant jumps.

Characteristics: no bias, minimal spread.

Implementations

impl UniversalSamplingSelector

pub fn new(selection_ratio: f64, num_individuals_per_parents: usize) -> Self

Constructs a new instance of UniversalSamplingSelector.

pub fn selection_ratio(&self) -> f64

Returns the selection ratio.

The selection ratio is the fraction of number of parents that are selected on every call of the select_from function and the number of individuals in the population.

pub fn set_selection_ratio(&mut self, value: f64)

Sets the selection ratio to a new value.

The selection ratio is the fraction of number of parents that are selected on every call of the select_from function and the number of individuals in the population.

pub fn num_individuals_per_parents(&self) -> usize

Returns the number of individuals per parents use by this selector.

pub fn set_num_individuals_per_parents(&mut self, value: usize)

Sets the number of individuals per parents to the given value.

Trait Implementations

impl Clone for UniversalSamplingSelector

fn clone(&self) -> UniversalSamplingSelector

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for UniversalSamplingSelector

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

Formats the value using the given formatter. Read more

impl GeneticOperator for UniversalSamplingSelector

fn name() -> String

The name of the operator used for display purposes. The name should make clear to the user of the simulation which implementation of which kind of operator is being performed. Read more

impl PartialEq<UniversalSamplingSelector> for UniversalSamplingSelector

fn eq(&self, other: &UniversalSamplingSelector) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, other: &UniversalSamplingSelector) -> bool

This method tests for !=.

impl<G, F> SelectionOp<G, F> for UniversalSamplingSelector where
G: Genotype,
F: Fitness + AsScalar,

fn select_from<R>(
    &self,
    evaluated: &EvaluatedPopulation<G, F>,
    rng: &mut R
) -> Vec<Parents<G>> where
    R: Rng + Sized,

Selects individuals from the given population according to the implemented selection strategy. Read more

impl SingleObjective for UniversalSamplingSelector

impl StructuralPartialEq for UniversalSamplingSelector

Auto Trait Implementations

impl RefUnwindSafe for UniversalSamplingSelector

impl Send for UniversalSamplingSelector

impl Sync for UniversalSamplingSelector

impl Unpin for UniversalSamplingSelector

impl UnwindSafe for UniversalSamplingSelector

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.