Function cosine 

pub fn cosine<T>(point1: &[T], point2: &[T]) -> T
where
    T: Float,

Compute Cosine distance between two points

Arguments

• point1 - First point
• point2 - Second point

Returns

• Cosine distance between the points (1 - cosine similarity)

Examples

use scirs2_spatial::distance::cosine;

let point1 = &[1.0, 0.0];
let point2 = &[0.0, 1.0];

let dist = cosine(point1, point2);
assert!((dist - 1.0f64).abs() < 1e-6);