Trait LinkFunc 

pub trait LinkFunc {
    // Required methods
    fn func(x: f64) -> f64;
    fn func_grad(x: f64) -> f64;
    fn func_inv(x: f64) -> f64;
}

Link functions.

Used within Generalized Linear Regression models.

Required Methods

fn func(x: f64) -> f64

The link function.

fn func_grad(x: f64) -> f64

The gradient of the link function.

fn func_inv(x: f64) -> f64

The inverse of the link function. Often called the ‘mean’ function.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl LinkFunc for Identity

The Identity link function.

g(u) = u

impl LinkFunc for Log

The log link function.

g(u) = ln(u)

impl LinkFunc for Logit

The Logit link function.

g(u) = ln(x / (1 - x))