Struct CauchyLoss 

pub struct CauchyLoss { /* private fields */ }

Cauchy loss function

The Cauchy loss provides very strong protection against outliers with a slowly decreasing influence function.

Implementations

impl CauchyLoss

pub fn new(c: f64) -> Self

Create a new Cauchy loss with the specified scale parameter

Trait Implementations

impl Clone for CauchyLoss

fn clone(&self) -> CauchyLoss

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CauchyLoss

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

Formats the value using the given formatter.

impl RobustLoss for CauchyLoss

fn loss(&self, r: f64) -> f64

Compute the loss value for a residual

fn weight(&self, r: f64) -> f64

Compute the weight (psi function derivative) for a residual Weight = psi(r) / r where psi is the derivative of the loss

fn weight_derivative(&self, r: f64) -> f64

Compute the derivative of the weight function (for Hessian computation)