Struct Codebook 

pub struct Codebook {
    pub centroids: Vec<Vec<f32>>,
    pub sub_dimension: usize,
}

A single sub-space codebook with n_clusters centroids of size sub_dimension.

Fields

centroids: Vec<Vec<f32>>

Centroids stored as row-major vectors of length sub_dimension.

sub_dimension: usize

The number of coordinates per centroid.

Implementations

impl Codebook

pub fn new(sub_dimension: usize) -> Self

Create an empty codebook for a given sub-dimension.

pub fn nearest_centroid(&self, sub_vector: &[f32]) -> u8

Return the index (code) of the centroid nearest to sub_vector. Uses squared Euclidean distance.

pub fn centroid(&self, code: u8) -> Option<&Vec<f32>>

Return the centroid for a code, or None if the code is out of range.

Trait Implementations

impl Clone for Codebook

fn clone(&self) -> Codebook

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Codebook

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.