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VerificationEntropy

Struct VerificationEntropy 

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pub struct VerificationEntropy {
    pub shannon: f64,
    pub renyi: BTreeMap<OrderedFloat, f64>,
    pub tsallis: f64,
}
Expand description

Core entropy measurement for a verification system.

Combines three entropy families:

  • Shannon — the canonical H = -Σ pᵢ log pᵢ
  • Rényi — generalised entropy H_α = (1/(1-α)) log Σ pᵢ^α
  • Tsallis — S_q = (1/(q-1)) (1 - Σ pᵢ^q)

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§shannon: f64

Shannon entropy H = -Σ pᵢ log₂ pᵢ

§renyi: BTreeMap<OrderedFloat, f64>

Rényi entropy keyed by order α

§tsallis: f64

Tsallis entropy (q = 2 by default, can be recomputed)

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impl VerificationEntropy

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pub fn from_probabilities(probs: &[f64]) -> Result<Self, EntropyError>

Compute verification entropy from a probability distribution.

probs need not be normalised — we normalise internally. Uses base-2 logarithm (bits).

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pub fn from_counts(counts: &[u64]) -> Result<Self, EntropyError>

Convenience: compute from raw hit counts (e.g. per-path execution counts).

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pub fn max_shannon(n: usize) -> f64

Maximum possible Shannon entropy for n equiprobable paths.

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pub fn normalised(&self) -> f64

Normalised Shannon entropy ∈ [0, 1].

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impl Clone for VerificationEntropy

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fn clone(&self) -> VerificationEntropy

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 Debug for VerificationEntropy

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for VerificationEntropy

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for VerificationEntropy

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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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<U> 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.