`shrinkage::ElasticNet`

Shrinkage for Rust · rust · 0.3.0

Source: src/penalty.rs

pub struct ElasticNet

Complete elastic-net penalty l1 * ||beta||₁ + l2 * ||beta||² / 2.

Inherent implementation

Source: src/penalty.rs

impl ElasticNet

`alpha`

Source: src/penalty.rs

pub fn alpha(&self) -> Option<f64>

Configured mixing parameter, or its equivalent for positive independent strengths. Two independently supplied zero strengths have no mixing ratio.

`from_alpha`

Source: src/penalty.rs

pub fn from_alpha(lambda: f64, alpha: f64) -> Self

Use lambda * (alpha * ||beta||₁ + (1 - alpha) * ||beta||² / 2). Lambda must be finite and nonnegative, and alpha must lie in [0, 1]. Validation occurs during evaluation or fitting. Automatic paths retain alpha even when the supplied lambda is zero.

`l1`

Source: src/penalty.rs

pub fn l1(&self) -> f64

Configured L1 strength.

`l2`

Source: src/penalty.rs

pub fn l2(&self) -> f64

Configured squared L2 strength.

`new`

Source: src/penalty.rs

pub fn new(l1: f64, l2: f64) -> Self

Set the L1 and squared L2 strengths independently, checked when used.

Implementation of Clone

Source: src/penalty.rs

impl Clone for ElasticNet

`clone`

Source: src/penalty.rs

fn clone(&self) -> Self

Implementation of CoordinatePenalty

Source: src/penalty/coordinate.rs

impl CoordinatePenalty for shrinkage::ElasticNet

`coordinate_violation`

Source: src/penalty/coordinate.rs

fn coordinate_violation(
    &self,
    _: usize,
    value: f64,
    gradient: f64
) -> Result<f64, FitError>

`minimize_coordinate`

Source: src/penalty/coordinate.rs

fn minimize_coordinate(
    &self,
    _: usize,
    linear: f64,
    curvature: f64
) -> Result<f64, FitError>

Implementation of Copy

Source: src/penalty.rs

impl Copy for ElasticNet

Implementation of Debug

Source: src/penalty.rs

impl Debug for ElasticNet

`fmt`

Source: src/penalty.rs

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

Implementation of PathPenalty

Source: src/path/penalty.rs

impl PathPenalty for shrinkage::ElasticNet

`AtStrength`

Source: src/path/penalty.rs

type AtStrength = ElasticNet;

`at_strength`

Source: src/path/penalty.rs

fn at_strength(&self, lambda: f64) -> Result<Self, FitError>

`maximum_penalty`

Source: src/path/penalty.rs

fn maximum_penalty(&self, gradient: &[f64]) -> Result<PenaltyMaximum, FitError>

`path_anchor`

Source: src/path/penalty.rs

fn path_anchor(&self, gradient: &[f64]) -> Result<f64, FitError>

Implementation of Penalty

Source: src/penalty.rs

impl Penalty for ElasticNet

`Error`

Source: src/penalty.rs

type Error = FitError;

`validate_input`

Source: src/penalty.rs

fn validate_input(&self, coefficients: &[f64]) -> Result<(), FitError>

`value`

Source: src/penalty.rs

fn value(&self, coefficients: &[f64]) -> Result<f64, FitError>

Implementation of ProximalPenalty

Source: src/penalty.rs

impl ProximalPenalty for ElasticNet

`prox`

Source: src/penalty.rs

fn prox(
    &self,
    input: &[f64],
    step: f64,
    output: &mut [f64]
) -> Result<(), FitError>

Implementation of RestrictedProximalPenalty

Source: src/penalty/masked.rs

impl RestrictedProximalPenalty for shrinkage::ElasticNet

`prox_restricted`

Source: src/penalty/masked.rs

fn prox_restricted(
    &self,
    input: &[f64],
    unpenalized: &[bool],
    step: f64,
    output: &mut [f64]
) -> Result<(), FitError>

`value_restricted`

Source: src/penalty/masked.rs

fn value_restricted(
    &self,
    coefficients: &[f64],
    unpenalized: &[bool]
) -> Result<f64, FitError>

Implementation of Freeze

impl Freeze for ElasticNet

Implementation of RefUnwindSafe

impl RefUnwindSafe for ElasticNet

Implementation of Send

impl Send for ElasticNet

Implementation of Sync

impl Sync for ElasticNet

Implementation of Unpin

impl Unpin for ElasticNet

Implementation of UnsafeUnpin

impl UnsafeUnpin for ElasticNet

Implementation of UnwindSafe

impl UnwindSafe for ElasticNet

Implementation of Any

impl<T> Any for T where T: 'static + ?Sized

Implementation of Borrow

impl<T> Borrow<T> for T where T: ?Sized

Implementation of BorrowMut

impl<T> BorrowMut<T> for T where T: ?Sized

Implementation of ByRef

impl<T> ByRef<T> for T

Implementation of CastableFrom

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT where ST: ?Sized, DT: ?Sized

Implementation of CastableFrom

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT where ST: ?Sized, DT: ?Sized

Implementation of CloneToUninit

impl<T> CloneToUninit for T where T: Clone

Implementation of From

impl<T> From<T> for T

Implementation of Imply

impl<T, U> Imply<T> for U where T: ?Sized, U: ?Sized

Implementation of Into

impl<T, U> Into<U> for T where U: From<T>

Implementation of IntoEither

impl<T> IntoEither for T

Implementation of Pointable

impl<T> Pointable for T

Implementation of Read

impl<T> Read<Exclusive, BecauseExclusive> for T where T: ?Sized

Implementation of Same

impl<T> Same for T

Implementation of SupersetOf

impl<SS, SP> SupersetOf<SS> for SP where SS: SubsetOf<SP>

Implementation of ToOwned

impl<T> ToOwned for T where T: Clone

Implementation of TryFrom

impl<T, U> TryFrom<U> for T where U: Into<T>

Implementation of TryInto

impl<T, U> TryInto<U> for T where U: TryFrom<T>