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CgpState

rlevo_evolution::algorithms::gp_cgp

Struct CgpState 

Source 
pub struct CgpState<B: Backend> {
    pub parent: Tensor<B, 2, Int>,
    pub parent_fitness: Option<f32>,
    pub best_genome: Option<Tensor<B, 2, Int>>,
    pub best_fitness: f32,
    pub generation: usize,
}
Expand description

Generation state for CartesianGeneticProgramming.

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§parent: Tensor<B, 2, Int>

Parent genotype, shape (1, genome_len).

§parent_fitness: Option<f32>

Parent fitness (host-side scalar cache).

None until the first tell bootstraps it. Using Option — rather than a f32::NEG_INFINITY “unset” sentinel — keeps “uninitialised” distinct from a legitimately sanitized −∞ fitness. A Minimize landscape whose natural cost is +∞ canonicalizes to −∞ (ADR 0034); with the old sentinel that value re-triggered the bootstrap branch on the next ask, collapsing the (1+λ) loop to a single parent forever.

§best_genome: Option<Tensor<B, 2, Int>>

Best-so-far genotype.

§best_fitness: f32

Best-so-far fitness.

§generation: usize

Generation counter.

Trait Implementations§

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impl<B: Clone + Backend> Clone for CgpState<B>

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fn clone(&self) -> CgpState<B>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<B: Debug + Backend> Debug for CgpState<B>

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

Formats the value using the given formatter. Read more

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