man sc_LineOpt (Fonctions bibliothèques) - The LineOpt abstract class is used to perform one dimensional optimizations.

NAME

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

SYNOPSIS



#include <opt.h>

Inherits sc::Optimize.

Inherited by sc::Backtrack.

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. void init (RefSCVector &direction)

Initializes the line search object. 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

void sc::LineOpt::init (RefSCVector & direction, Ref< Function > function)

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.

void sc::LineOpt::init (RefSCVector & direction)

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).

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.

Author

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