Trait vectors::Distance

pub trait Distance: Sized {
    type Scalar;
    fn squared_distance(&self, rhs: &Self) -> Self::Scalar;

    fn distance(&self, rhs: &Self) -> Self::Scalar
    where
        Self::Scalar: Real,
    { ... }
}

The trait for types supporting the calculation of distance

Associated Types

type Scalar

The scalar type returned by self's distance

Required Methods

fn squared_distance(&self, rhs: &Self) -> Self::Scalar

Calculates the squared euclidian distance between self and rhs.

Provided Methods

fn distance(&self, rhs: &Self) -> Self::Scalar where
    Self::Scalar: Real, 

Calculates the euclidian distance between self and rhs.

Implementors

• impl<T, A> Distance for vectors::dense::stack::DenseVector<A> where
    T: Copy + Signed,
    A: Array<Item = T>,  type Scalar = T;
• impl<T> Distance for vectors::dense::heap::DenseVector<T> where
    T: Copy + Signed,  type Scalar = T;
• impl<T, A> Distance for vectors::sparse::stack::SparseVector<A> where
    T: Copy + Signed,
    A: Array<Item = (usize, T)>,  type Scalar = T;
• impl<T> Distance for vectors::sparse::heap::SparseVector<T> where
    T: Copy + Signed,  type Scalar = T;