Enum SVM_KernelTypes

#[repr(C)]
pub enum SVM_KernelTypes {
    CUSTOM = -1,
    LINEAR = 0,
    POLY = 1,
    RBF = 2,
    SIGMOID = 3,
    CHI2 = 4,
    INTER = 5,
}

%SVM kernel type

A comparison of different kernels on the following 2D test case with four classes. Four SVM::C_SVC SVMs have been trained (one against rest) with auto_train. Evaluation on three different kernels (SVM::CHI2, SVM::INTER, SVM::RBF). The color depicts the class with max score. Bright means max-score > 0, dark means max-score < 0.

Variants

CUSTOM = -1

Returned by SVM::getKernelType in case when custom kernel has been set

LINEAR = 0

Linear kernel. No mapping is done, linear discrimination (or regression) is done in the original feature space. It is the fastest option. .

POLY = 1

Polynomial kernel: .

RBF = 2

Radial basis function (RBF), a good choice in most cases. .

SIGMOID = 3

Sigmoid kernel: .

CHI2 = 4

Exponential Chi2 kernel, similar to the RBF kernel: .

INTER = 5

Histogram intersection kernel. A fast kernel. .

Trait Implementations

impl Clone for SVM_KernelTypes

fn clone(&self) -> SVM_KernelTypes

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SVM_KernelTypes

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

Formats the value using the given formatter.

impl From<SVM_KernelTypes> for i32

fn from(v: SVM_KernelTypes) -> Self

Converts to this type from the input type.

impl PartialEq for SVM_KernelTypes

fn eq(&self, other: &SVM_KernelTypes) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<i32> for SVM_KernelTypes

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for SVM_KernelTypes

impl Eq for SVM_KernelTypes

impl StructuralPartialEq for SVM_KernelTypes