Trait StatBound

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pub trait StatBound<T>: Sized {
    // Required methods
    fn lift(value: Precision<T>) -> Self;
    fn union(&self, other: &Self) -> Option<Self>;
    fn intersection(&self, other: &Self) -> Option<IntersectionResult<Self>>;
    fn as_exact(&self) -> Option<&T>;
}

Expand description

StatBound defines the operations that can be performed on a bound. The mains bounds are Upper (e.g. max) and Lower (e.g. min).

Required Methods§

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fn lift(value: Precision<T>) -> Self

Creates a new bound from a Precision statistic.

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fn union(&self, other: &Self) -> Option<Self>

Finds the smallest bound that covers both bounds. A.k.a. the meet of the bound.

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fn intersection(&self, other: &Self) -> Option<IntersectionResult<Self>>

Refines the bounds to the most precise estimate we can make for that bound. If the bounds are disjoint, then the result is None. e.g. Precision::Inexact(5) and Precision::Exact(6) would result in Precision::Inexact(5). A.k.a. the join of the bound.

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