Enum ProxFnType 

pub enum ProxFnType {
    L1Norm,
    L2NormSquared,
    NonNegativeOrtHant,
    L2Ball {
        radius: f64,
    },
}

Type of function for proximal operator.

Variants

L1Norm

L1 norm: f(x) = ||x||_1 → soft thresholding.

L2NormSquared

Squared L2 norm: f(x) = ||x||_2^2 → shrinkage.

NonNegativeOrtHant

Indicator of {x : x ≥ 0}: f(x) = 0 if x≥0, ∞ else → projection.

L2Ball

Indicator of L2 ball of radius r: ||x||_2 ≤ r.

Fields

radius: f64

Trait Implementations

impl Clone for ProxFnType

fn clone(&self) -> ProxFnType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProxFnType

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

Formats the value using the given formatter.

impl PartialEq for ProxFnType

fn eq(&self, other: &ProxFnType) -> 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 StructuralPartialEq for ProxFnType