Struct CustomRBFKernel 

pub struct CustomRBFKernel {
    pub gamma: Float,
    pub sigma: Float,
}

Custom RBF kernel with configurable parameters CustomRBFKernel

Fields

gamma: Float

gamma

sigma: Float

sigma

Implementations

impl CustomRBFKernel

pub fn new(gamma: Float) -> Self

pub fn from_sigma(sigma: Float) -> Self

Trait Implementations

impl Clone for CustomRBFKernel

fn clone(&self) -> CustomRBFKernel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CustomRBFKernel

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

Formats the value using the given formatter.

impl KernelFunction for CustomRBFKernel

fn kernel(&self, x: &[Float], y: &[Float]) -> Float

Compute the kernel value between two vectors

fn fourier_transform(&self, w: &[Float]) -> Float

Get the characteristic function of the kernel’s Fourier transform This should return the Fourier transform of the kernel at frequency w For most kernels, this is needed to generate appropriate random features

fn sample_frequencies( &self, n_features: usize, n_components: usize, rng: &mut RealStdRng, ) -> Array2<Float>

Sample random frequencies for Random Fourier Features This method should sample frequencies according to the spectral measure of the kernel (i.e., the Fourier transform of the kernel)

fn description(&self) -> String

Get a description of the kernel