# sc::LineOpt Class Reference

The LineOpt abstract class is used to perform one dimensional optimizations. More...

`#include <opt.h>`

Inheritance diagram for sc::LineOpt:

List of all members.

## Public Member Functions

| LineOpt (StateIn &)
| LineOpt (const Ref< KeyVal > &)
void | save_data_state (StateOut &)
| Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them.
virtual void | init (RefSCVector &direction)
| Initializes the line search object.
virtual void | init (RefSCVector &direction, Ref< Function > function)
| Initializes the line search object.
void | apply_transform (const Ref< NonlinearTransform > &)
| Applies a nonlinear transform.
double | decrease_factor ()
| Returns factor for sufficient decrease test.
double | set_decrease_factor (double factor)
| Sets factor for sufficient decrease test.

## Protected Member Functions

int | sufficient_decrease (RefSCVector &step)

## Protected Attributes

double | decrease_factor_
RefSCVector | initial_x_
double | initial_value_
RefSCVector | initial_grad_
RefSCVector | search_direction_
Ref< Function > | function_

## Detailed Description

The LineOpt abstract class is used to perform one dimensional optimizations.

## Member Function Documentation

virtual void sc::LineOpt::init | ( | RefSCVector & | direction,
|  | Ref< Function > | function |
| ) |  |  | `[virtual]`

Initializes the line search object.

First argument is a search direction, second argument is a function object to optimize. Use this method when a function must be passed to the Optimize base class.

Reimplemented in sc::MCSearch.

virtual void sc::LineOpt::init | ( | RefSCVector & | direction | ) | `[virtual]`

Initializes the line search object.

Argument is a search direction. Use of this method assumes the Optimize base class already has a function object (got it from a keyval or elsewhere).

Reimplemented in sc::MCSearch.

void sc::LineOpt::save_data_state | ( | StateOut & |  | ) | `[virtual]`

Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them.

This must be implemented by the derived class if the class has data.

Reimplemented from sc::Optimize.

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

- opt.h