Struct LocallyPeriodicKernel 

pub struct LocallyPeriodicKernel { /* private fields */ }

Locally Periodic kernel: RBF × Periodic

K(x, y) = k_rbf(x, y) * k_periodic(x, y)

Models functions that are periodic but whose amplitude varies smoothly. The RBF component controls the locality (how quickly periodicity decays), while the periodic component captures the repetitive structure.

Implementations

impl LocallyPeriodicKernel

pub fn new( period: f64, periodic_length_scale: f64, rbf_length_scale: f64, ) -> Result<Self>

Create a new Locally Periodic kernel.

Arguments

• period - Period of the repetitive pattern
• periodic_length_scale - Length scale within each period
• rbf_length_scale - How quickly the periodic pattern decays

pub fn period(&self) -> f64

Get the period.

pub fn periodic_length_scale(&self) -> f64

Get the periodic length scale.

pub fn rbf_length_scale(&self) -> f64

Get the RBF length scale.

Trait Implementations

impl Clone for LocallyPeriodicKernel

fn clone(&self) -> LocallyPeriodicKernel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LocallyPeriodicKernel

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

Formats the value using the given formatter.

impl Kernel for LocallyPeriodicKernel

fn compute(&self, x: &[f64], y: &[f64]) -> Result<f64>

Compute kernel value between two inputs.

fn name(&self) -> &str

Get kernel name for identification.

fn compute_matrix(&self, inputs: &[Vec<f64>]) -> Result<Vec<Vec<f64>>>

Compute kernel matrix for a set of inputs.

fn is_psd(&self) -> bool

Check if kernel is positive semi-definite.