Struct SvmParameterBuilder 

pub struct SvmParameterBuilder { /* private fields */ }

Fluent builder for a validated SvmParameter.

Defaults are identical to SvmParameter::default. build constructs the parameter and calls the existing SvmParameter::validate method; data-dependent validation remains the responsibility of crate::types::check_parameter.

Implementations

impl SvmParameterBuilder

pub fn new() -> Self

Create a builder using LIBSVM defaults.

pub fn svm_type(self, svm_type: SvmType) -> Self

Set the SVM formulation type. Default: SvmType::CSvc.

pub fn kernel_type(self, kernel_type: KernelType) -> Self

Set the kernel function type. Default: KernelType::Rbf.

pub fn degree(self, degree: i32) -> Self

Set the polynomial kernel degree. Default: 3.

pub fn gamma(self, gamma: f64) -> Self

Set γ for RBF, polynomial, and sigmoid kernels. Default: 0.0 (interpreted during training as 1 / num_features).

pub fn coef0(self, coef0: f64) -> Self

Set the independent term in polynomial and sigmoid kernels. Default: 0.0.

pub fn c(self, c: f64) -> Self

Set the cost parameter C. Default: 1.0.

pub fn nu(self, nu: f64) -> Self

Set ν for ν-SVC, one-class SVM, and ν-SVR. Default: 0.5.

pub fn p(self, p: f64) -> Self

Set ε in the ε-insensitive loss function for ε-SVR. Default: 0.1.

pub fn cache_size(self, cache_size: f64) -> Self

Set cache memory size in MB. Default: 100.0.

pub fn eps(self, eps: f64) -> Self

Set solver stopping tolerance. Default: 0.001.

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

Enable or disable the shrinking heuristic. Default: true.

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

Enable or disable probability-estimate training. Default: false.

pub fn weight(self, label: i32, weight: f64) -> Self

Append one per-class weight override (class_label, weight). Default: empty.

pub fn weights(self, weights: Vec<(i32, f64)>) -> Self

Replace all per-class weight overrides. Default: empty.

pub fn build(self) -> Result<SvmParameter, SvmError>

Construct and validate an SvmParameter.

This calls the existing SvmParameter::validate method and does not duplicate validation rules. Data-dependent checks stay in crate::types::check_parameter.

Trait Implementations

impl Clone for SvmParameterBuilder

fn clone(&self) -> SvmParameterBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SvmParameterBuilder

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

Formats the value using the given formatter.

impl Default for SvmParameterBuilder

fn default() -> Self

Returns the “default value” for a type.