Enum AllocationCurve 

pub enum AllocationCurve {
    Linear,
    Exponential {
        exponent: f64,
    },
    Stepped {
        thresholds: Vec<(f64, u64)>,
    },
}

Curve controlling how probability maps to divisor.

Variants

Linear

Linear: divisor = max - (max - min) * probability.

Exponential

Exponential: divisor = max * (1 - probability)^exponent. Gives more budget to high-probability screens with sharp falloff.

Fields

exponent: f64

Controls curve steepness (typically 2.0).

Stepped

Stepped: bucket probabilities into tiers.

Thresholds are checked in descending order; first match wins. Must be sorted descending by threshold value.

Example: [(0.3, 1), (0.1, 2), (0.03, 5), (0.0, 20)]

Fields

thresholds: Vec<(f64, u64)>

(threshold, divisor) pairs, sorted descending by threshold.

Trait Implementations

impl Clone for AllocationCurve

fn clone(&self) -> AllocationCurve

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AllocationCurve

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

Formats the value using the given formatter.