Enum Kernel 

pub enum Kernel {
    Linear,
    Rbf {
        gamma: Float,
    },
    Polynomial {
        gamma: Float,
        coef0: Float,
        degree: u32,
    },
}

Kernel type for Nystroem approximation Kernel

Variants

Linear

Linear kernel: K(x,y) = x^T y

Rbf

RBF kernel: K(x,y) = exp(-gamma * ||x-y||²)

Fields

gamma: Float

Polynomial

Polynomial kernel: K(x,y) = (gamma * x^T y + coef0)^degree

Fields

gamma: Float

coef0: Float

degree: u32

Implementations

impl Kernel

pub fn compute_kernel( &self, x: &Array2<Float>, y: &Array2<Float>, ) -> Array2<Float>

Compute kernel matrix between X and Y

Trait Implementations

impl Clone for Kernel

fn clone(&self) -> Kernel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Kernel

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

Formats the value using the given formatter.