Struct DeKnobs 

pub struct DeKnobs {
    pub f: f64,
    pub cr: f64,
}

The DE knobs a run is driven with.

Exposed so the oracle can build the degenerate sampler its regression sentinel needs: a DEHB whose differential evolution has been switched off still runs the whole multi-fidelity schedule, so it isolates how much of the margin the DE actually earns.

Fields

f: f64

The scale factor F of the rand/1 mutation x_r1 + F·(x_r2 − x_r3).

cr: f64

The binomial crossover rate CR.

Implementations

impl DeKnobs

pub const fn reference() -> Self

The DEHB reference defaults (F = CR = 0.5) — what Dehb::new builds.

pub const fn degenerate() -> Self

The crippled DE the sentinel uses: F = 0 collapses the mutant onto a single donor and CR = 0 keeps every coordinate of the target but the one j_rand forces — so a child is (all but one coordinate of) the individual it targeted, and the populations stop exploring.

Trait Implementations

impl Clone for DeKnobs

fn clone(&self) -> DeKnobs

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DeKnobs

impl Debug for DeKnobs

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

Formats the value using the given formatter.

impl Default for DeKnobs

fn default() -> Self

DeKnobs::reference.

impl PartialEq for DeKnobs

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DeKnobs