Struct RadialBasisFunctions 

pub struct RadialBasisFunctions { /* private fields */ }

Radial Basis Functions Generator

Generate radial basis functions (RBFs) for non-linear feature transformation. Supports various RBF types including Gaussian, Multiquadric, and Inverse Multiquadric.

Parameters

• n_centers - Number of RBF centers
• rbf_type - Type of radial basis function
• centers - RBF center positions (if None, centers are determined from data)
• shape_parameter - Shape parameter for RBFs (affects function width)
• normalize - Whether to normalize the output features

Examples

use sklears_feature_extraction::basic_features::{RadialBasisFunctions, RBFType};
use scirs2_core::ndarray::array;

let X = array![[1.0, 2.0], [3.0, 4.0], [5.0, 6.0]];
let rbf = RadialBasisFunctions::new()
    .n_centers(3)
    .rbf_type(RBFType::Gaussian)
    .shape_parameter(1.0);

let features = rbf.transform(&X.view()).expect("valid input produces transform output");

Implementations

impl RadialBasisFunctions

pub fn new() -> Self

Create a new RadialBasisFunctions transformer

pub fn n_centers(self, n_centers: usize) -> Self

Set the number of RBF centers

pub fn rbf_type(self, rbf_type: RBFType) -> Self

Set the type of radial basis function

pub fn centers(self, centers: Array2<Float>) -> Self

Set custom RBF centers

pub fn shape_parameter(self, shape_parameter: Float) -> Self

Set the shape parameter (epsilon)

pub fn normalize(self, normalize: bool) -> Self

Set whether to normalize output features

pub fn transform(&self, X: &ArrayView2<'_, Float>) -> SklResult<Array2<Float>>

Transform input data using radial basis functions

Trait Implementations

impl Clone for RadialBasisFunctions

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RadialBasisFunctions

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

Formats the value using the given formatter.

impl Default for RadialBasisFunctions

fn default() -> Self

Returns the “default value” for a type.

impl Transform<ArrayBase<ViewRepr<&f64>, Dim<[usize; 2]>>, ArrayBase<OwnedRepr<f64>, Dim<[usize; 2]>>> for RadialBasisFunctions

fn transform(&self, X: &ArrayView2<'_, Float>) -> SklResult<Array2<Float>>

Transform the input data