Trait argmin::solver::linesearch::condition::LineSearchCondition

pub trait LineSearchCondition<T> {
    fn eval(
        &self, 
        cur_cost: f64, 
        cur_grad: T, 
        init_cost: f64, 
        init_grad: T, 
        search_direction: T, 
        alpha: f64
    ) -> bool;
    fn requires_cur_grad(&self) -> bool;
}

Needs to be implemented by everything that wants to be a LineSearchCondition

Required methods

fn eval(
    &self,
    cur_cost: f64,
    cur_grad: T,
    init_cost: f64,
    init_grad: T,
    search_direction: T,
    alpha: f64
) -> bool

Evaluate the condition

fn requires_cur_grad(&self) -> bool

Indicates whether this condition requires the computation of the gradient at the new point

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Implementors

impl<T> LineSearchCondition<T> for ArmijoCondition where
    T: ArgminDot<T, f64>, 

fn eval(
    &self,
    cur_cost: f64,
    _cur_grad: T,
    init_cost: f64,
    init_grad: T,
    search_direction: T,
    alpha: f64
) -> bool

fn requires_cur_grad(&self) -> bool

impl<T> LineSearchCondition<T> for GoldsteinCondition where
    T: ArgminDot<T, f64>, 

fn eval(
    &self,
    cur_cost: f64,
    _cur_grad: T,
    init_cost: f64,
    init_grad: T,
    search_direction: T,
    alpha: f64
) -> bool

fn requires_cur_grad(&self) -> bool

impl<T> LineSearchCondition<T> for StrongWolfeCondition where
    T: Clone + ArgminDot<T, f64>, 

fn eval(
    &self,
    cur_cost: f64,
    cur_grad: T,
    init_cost: f64,
    init_grad: T,
    search_direction: T,
    alpha: f64
) -> bool

fn requires_cur_grad(&self) -> bool

impl<T> LineSearchCondition<T> for WolfeCondition where
    T: Clone + ArgminDot<T, f64>, 

fn eval(
    &self,
    cur_cost: f64,
    cur_grad: T,
    init_cost: f64,
    init_grad: T,
    search_direction: T,
    alpha: f64
) -> bool

fn requires_cur_grad(&self) -> bool

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