Struct PolynomialBasis 

pub struct PolynomialBasis {
    pub degree: usize,
    pub poly_type: PolynomialType,
    pub clamp_range: Option<(f64, f64)>,
}

Standard Polynomial Basis (Power, Hermite, Chebyshev, etc.)

Includes:

• Full interactions up to degree 2 (Quadratic)
• Diagonal terms up to degree

Fields

degree: usize

poly_type: PolynomialType

clamp_range: Option<(f64, f64)>

Implementations

impl PolynomialBasis

pub fn new(degree: usize, poly_type: PolynomialType) -> Self

pub fn with_clamp(self, min: f64, max: f64) -> Self

Trait Implementations

impl<const N: usize> Basis<N> for PolynomialBasis

fn num_features(&self) -> usize

Returns the number of basis functions (K).

fn evaluate(&self, state: &[f64; N], buffer: &mut [f64])

Evaluates all basis functions at state and writes them into buffer. buffer must have length at least num_features().

fn evaluate_buffers(&self, state: &[f64; N], buffer: &mut Vec<f64>)

Evaluates all basis functions and appends them to the provided vector. This avoids zero-initialization overhead.

fn eval_dot(&self, state: &[f64; N], weights: &[f64]) -> f64

Returns the dot product $w \cdot \Phi(x)$ without allocating the full feature vector. Default implementation allocates, overrides can be optimization.

impl Clone for PolynomialBasis

fn clone(&self) -> PolynomialBasis

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PolynomialBasis

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

Formats the value using the given formatter.