Struct CmaEsConfig

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pub struct CmaEsConfig {
    pub bounds: Vec<(f64, f64)>,
    pub x0: Option<Array1<f64>>,
    pub sigma0: Option<f64>,
    pub lambda: usize,
    pub mu: usize,
    pub maxeval: usize,
    pub seed: Option<u64>,
    pub stagnation_window: usize,
    pub f_tol: f64,
    pub target_f: f64,
    pub callback: Option<CmaEsCallback>,
    pub parallel: ParallelConfig,
}

Expand description

Configuration for cma_es.

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§bounds: Vec<(f64, f64)>

(lower, upper) bounds per parameter.

§x0: Option<Array1<f64>>

Optional initial mean. Values outside bounds are clipped.

§sigma0: Option<f64>

Initial step size in normalised [0, 1] coordinates.

None uses 0.3, the standard broad-search default for bounded CMA-ES. Smaller values are appropriate for local refinement.

§lambda: usize

Offspring population size. 0 uses 4 + floor(3 ln(n)).

§mu: usize

Parent count. 0 uses lambda / 2.

§maxeval: usize

Maximum objective evaluations.

§seed: Option<u64>

Optional RNG seed for deterministic runs.

§stagnation_window: usize

Stop after this many generations with improvement below Self::f_tol.

§f_tol: f64

Objective-improvement tolerance for stagnation detection.

§target_f: f64

Stop once the best objective is at or below this value.

§callback: Option<CmaEsCallback>

Optional per-generation callback. Returning CallbackAction::Stop terminates the run early and returns the best point seen so far.

§parallel: ParallelConfig

Parallel evaluation configuration for offspring fitness calls.

Trait Implementations§

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impl Default for CmaEsConfig

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl !UnwindSafe for CmaEsConfig

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Calls U::from(self).

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

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