Struct CosineDistance

pub struct CosineDistance;

Cosine distance: $d(a, b) = 1 - \frac{a \cdot b}{|a| \cdot |b|}$.

Example

use cvx_core::DistanceMetric;
use cvx_index::metrics::CosineDistance;

let d = CosineDistance;
let a = vec![1.0, 0.0];
let b = vec![1.0, 0.0];
assert!(d.distance(&a, &b) < 1e-5); // same direction → 0.0

Trait Implementations

impl Clone for CosineDistance

fn clone(&self) -> CosineDistance

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DistanceMetric for CosineDistance

fn distance(&self, a: &[f32], b: &[f32]) -> f32

Compute the distance between two vectors.

fn name(&self) -> &str

Human-readable name of this metric (e.g., "cosine", "l2").

impl Copy for CosineDistance