Struct StrategyMetrics

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pub struct StrategyMetrics {
    pub generation: usize,
    pub population_size: usize,
    pub best_fitness: f32,
    pub mean_fitness: f32,
    pub worst_fitness: f32,
    pub best_fitness_ever: f32,
}

Expand description

Per-generation summary reported by Strategy::tell.

All statistics refer to the generation that just finished evaluating. Fitness values follow the minimization convention: lower is better.

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§generation: usize

Zero-based generation index.

§population_size: usize

Number of individuals evaluated in this generation.

§best_fitness: f32

Smallest fitness observed in this generation.

§mean_fitness: f32

Mean fitness across this generation’s population.

§worst_fitness: f32

Largest fitness observed in this generation.

§best_fitness_ever: f32

Best fitness seen across all generations to date.

Implementations§

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impl StrategyMetrics

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pub fn from_host_fitness( generation: usize, fitnesses: &[f32], best_fitness_ever: f32, ) -> Self

Computes population statistics from a host-side fitness slice.

§Panics

Panics if fitnesses is empty.

Trait Implementations§

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impl Clone for StrategyMetrics

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fn clone(&self) -> StrategyMetrics

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for StrategyMetrics

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for StrategyMetrics

Blanket Implementations§

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impl<T> Adaptor<()> for T

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fn adapt(&self)

Adapt the type to be passed to a metric.

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoComptime for T

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fn comptime(self) -> Self

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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