Trait renforce::util::Metric

pub trait Metric {
    fn dist2(x: &Self, y: &Self) -> f64;

    fn dist(x: &Self, y: &Self) -> f64 { ... }
}

A type with a notion of distance The distance function should satisfy the triangle inequality (and the other metric properties)

d(x,z) <= d(x,y) + d(y,z)

Required Methods

fn dist2(x: &Self, y: &Self) -> f64

Returns the squared distance between x and y

Provided Methods

fn dist(x: &Self, y: &Self) -> f64

Returns the distance between x and y

Implementors

• impl Metric for u32
• impl Metric for f64
• impl<T: Metric> Metric for Vec<T>
• impl<T: Metric, U: Metric> Metric for (T, U)