gradient_minimize.c File Reference

#include <volume_io/internal_volume_io.h>
#include <bicpl/numerical.h>

Include dependency graph for gradient_minimize.c:

Go to the source code of this file.

Defines
#define	SMALLEST_STEP_SIZE   1.0e-20
#define	STEP_RATIO   0.5
Functions
private Real	take_step (int n_dims, Real current[], Real current_value, Real(*func)(Real[], void *), void *func_data, Real step_sizes[], int n_search_dims, Real parameters[], Real best[], int min_pos[], int max_pos[], int pos[])
public Real	gradient_steps_minimize_function (int n_dims, Real initial_parameters[], Real initial_step_sizes[], Real(*func)(Real[], void *), void *func_data, int n_search_dims, int max_iterations, Real tolerance, Real solution[])

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Define Documentation

#define SMALLEST_STEP_SIZE   1.0e-20

Definition at line 22 of file gradient_minimize.c. Referenced by gradient_steps_minimize_function().

#define STEP_RATIO   0.5

Definition at line 24 of file gradient_minimize.c. Referenced by gradient_steps_minimize_function().

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Function Documentation

public Real gradient_steps_minimize_function (  int  n_dims, Real  initial_parameters[], Real  initial_step_sizes[], Real(*  func)(Real[], void *), void *  func_data, int  n_search_dims, int  max_iterations, Real  tolerance, Real  solution[] )

Definition at line 40 of file gradient_minimize.c. References FALSE, numerically_close(), SMALLEST_STEP_SIZE, STEP_RATIO, take_step(), and TRUE.

private Real take_step (  int  n_dims, Real  current[], Real  current_value, Real(*  func)(Real[], void *), void *  func_data, Real  step_sizes[], int  n_search_dims, Real  parameters[], Real  best[], int  min_pos[], int  max_pos[], int  pos[] )

Definition at line 119 of file gradient_minimize.c. Referenced by gradient_steps_minimize_function().

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