Struct RewardNormalizer

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pub struct RewardNormalizer { /* private fields */ }

Expand description

Reward normalizer using running statistics

Normalizes rewards to have zero mean and unit variance using Welford’s online algorithm for numerical stability.

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impl RewardNormalizer

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pub fn new(epsilon: f64) -> Self

Create new reward normalizer

§Arguments

epsilon - Small constant for numerical stability (default: 1e-8)

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pub fn update(&mut self, reward: f64)

Update statistics with new reward

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pub fn normalize(&self, reward: f64) -> f64

Normalize reward

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pub fn mean(&self) -> f64

Get current mean

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pub fn std(&self) -> f64

Get current standard deviation

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pub fn count(&self) -> usize

Get sample count

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pub fn reset(&mut self)

Reset statistics

Trait Implementations§

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impl Default for RewardNormalizer

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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 RewardNormalizer

Blanket Implementations§

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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, 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> 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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