L1Norm< Conf, Weight > Struct Template Reference

#include <alpaqa/functions/l1-norm.hpp>

Detailed Description

template<Config Conf, class Weight = typename Conf::real_t>
requires (std::is_same_v<Weight, typename Conf::real_t> || std::is_same_v<Weight, typename Conf::vec> || std::is_same_v<Weight, typename Conf::rvec> || std::is_same_v<Weight, typename Conf::crvec>)
struct alpaqa::functions::L1Norm< Conf, Weight >

ℓ₁-norm.

Template Parameters

Weight

Type of weighting factors. Either scalar or vector.

Examples

C++/Advanced/lasso-fbs.cpp.

Definition at line 21 of file l1-norm.hpp.

Collaboration diagram for L1Norm< Conf, Weight >:

Public Types
using	weight_t = Weight

Public Member Functions
	L1Norm (weight_t λ)
	L1Norm ()
	L1Norm ()=default
real_t	prox (crmat in, rmat out, real_t γ=1)

Public Attributes
weight_t	λ

Static Public Attributes
static constexpr bool	scalar_weight = std::is_same_v<weight_t, real_t>

Member Typedef Documentation

weight_t

template<Config Conf, class Weight = typename Conf::real_t>

using weight_t = Weight

Definition at line 23 of file l1-norm.hpp.

Constructor & Destructor Documentation

L1Norm() [1/3]

template<Config Conf, class Weight = typename Conf::real_t>

L1Norm ( weight_t  λ )

inline

Definition at line 26 of file l1-norm.hpp.

L1Norm() [2/3]

template<Config Conf, class Weight = typename Conf::real_t>

L1Norm ( )

inline

Definition at line 37 of file l1-norm.hpp.

L1Norm() [3/3]

template<Config Conf, class Weight = typename Conf::real_t>

L1Norm ( )

default

Member Function Documentation

prox()

template<Config Conf, class Weight = typename Conf::real_t>

real_t prox ( crmat  in, rmat  out, real_t  γ = 1  )

inline

Definition at line 46 of file l1-norm.hpp.

Here is the call graph for this function:

Member Data Documentation

scalar_weight

template<Config Conf, class Weight = typename Conf::real_t>

constexpr bool scalar_weight = std::is_same_v<weight_t, real_t>

staticconstexpr

Definition at line 24 of file l1-norm.hpp.

λ

template<Config Conf, class Weight = typename Conf::real_t>

weight_t λ

Definition at line 44 of file l1-norm.hpp.

---

The documentation for this struct was generated from the following file:

• src/alpaqa/include/alpaqa/functions/l1-norm.hpp