Struct Multiquadric 

pub struct Multiquadric {
    pub c: f64,
}

The Multiquadric Kernel.

k(x,y) = sqrt(||x-y||² + c²)

Fields

c: f64

Constant added to square of difference.

Implementations

impl Multiquadric

pub fn new(c: f64) -> Multiquadric

Constructs a new Multiquadric Kernel.

Examples

use rusty_machine::learning::toolkit::kernel;
use rusty_machine::learning::toolkit::kernel::Kernel;

// Construct a kernel with c = 2.
let ker = kernel::Multiquadric::new(2.0);

println!("{0}", ker.kernel(&[1.,2.,3.], &[3.,4.,5.]));

Trait Implementations

impl Clone for Multiquadric

fn clone(&self) -> Multiquadric

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Multiquadric

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

Formats the value using the given formatter.

impl Default for Multiquadric

Constructs a default Multiquadric Kernel.

The defaults are:

• c = 0

fn default() -> Multiquadric

Returns the “default value” for a type.

impl Kernel for Multiquadric

fn kernel(&self, x1: &[f64], x2: &[f64]) -> f64

The kernel function.

impl Copy for Multiquadric