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Diffstat (limited to 'gsl-1.9/multifit/gsl_multifit_nlin.h')
| -rw-r--r-- | gsl-1.9/multifit/gsl_multifit_nlin.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/gsl-1.9/multifit/gsl_multifit_nlin.h b/gsl-1.9/multifit/gsl_multifit_nlin.h new file mode 100644 index 0000000..6d37960 --- /dev/null +++ b/gsl-1.9/multifit/gsl_multifit_nlin.h @@ -0,0 +1,172 @@ +/* multifit_nlin/gsl_multifit_nlin.h + * + * Copyright (C) 1996, 1997, 1998, 1999, 2000 Brian Gough + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __GSL_MULTIFIT_NLIN_H__ +#define __GSL_MULTIFIT_NLIN_H__ + +#include <stdlib.h> +#include <gsl/gsl_types.h> +#include <gsl/gsl_math.h> +#include <gsl/gsl_vector.h> +#include <gsl/gsl_matrix.h> + +#undef __BEGIN_DECLS +#undef __END_DECLS +#ifdef __cplusplus +# define __BEGIN_DECLS extern "C" { +# define __END_DECLS } +#else +# define __BEGIN_DECLS /* empty */ +# define __END_DECLS /* empty */ +#endif + +__BEGIN_DECLS + +int gsl_multifit_gradient (const gsl_matrix * J, const gsl_vector * f, + gsl_vector * g); + +int gsl_multifit_covar (const gsl_matrix * J, double epsrel, gsl_matrix * covar); + + +/* Definition of vector-valued functions with parameters based on gsl_vector */ + +struct gsl_multifit_function_struct +{ + int (* f) (const gsl_vector * x, void * params, gsl_vector * f); + size_t n; /* number of functions */ + size_t p; /* number of independent variables */ + void * params; +}; + +typedef struct gsl_multifit_function_struct gsl_multifit_function ; + +#define GSL_MULTIFIT_FN_EVAL(F,x,y) (*((F)->f))(x,(F)->params,(y)) + +typedef struct + { + const char *name; + size_t size; + int (*alloc) (void *state, size_t n, size_t p); + int (*set) (void *state, gsl_multifit_function * function, gsl_vector * x, gsl_vector * f, gsl_vector * dx); + int (*iterate) (void *state, gsl_multifit_function * function, gsl_vector * x, gsl_vector * f, gsl_vector * dx); + void (*free) (void *state); + } +gsl_multifit_fsolver_type; + +typedef struct + { + const gsl_multifit_fsolver_type * type; + gsl_multifit_function * function ; + gsl_vector * x ; + gsl_vector * f ; + gsl_vector * dx ; + void *state; + } +gsl_multifit_fsolver; + +gsl_multifit_fsolver * +gsl_multifit_fsolver_alloc (const gsl_multifit_fsolver_type * T, + size_t n, size_t p); + +void gsl_multifit_fsolver_free (gsl_multifit_fsolver * s); + +int gsl_multifit_fsolver_set (gsl_multifit_fsolver * s, + gsl_multifit_function * f, + const gsl_vector * x); + +int gsl_multifit_fsolver_iterate (gsl_multifit_fsolver * s); + +const char * gsl_multifit_fsolver_name (const gsl_multifit_fsolver * s); +gsl_vector * gsl_multifit_fsolver_position (const gsl_multifit_fsolver * s); + +/* Definition of vector-valued functions and gradient with parameters + based on gsl_vector */ + +struct gsl_multifit_function_fdf_struct +{ + int (* f) (const gsl_vector * x, void * params, gsl_vector * f); + int (* df) (const gsl_vector * x, void * params, gsl_matrix * df); + int (* fdf) (const gsl_vector * x, void * params, gsl_vector * f, gsl_matrix *df); + size_t n; /* number of functions */ + size_t p; /* number of independent variables */ + void * params; +}; + +typedef struct gsl_multifit_function_fdf_struct gsl_multifit_function_fdf ; + +#define GSL_MULTIFIT_FN_EVAL_F(F,x,y) ((*((F)->f))(x,(F)->params,(y))) +#define GSL_MULTIFIT_FN_EVAL_DF(F,x,dy) ((*((F)->df))(x,(F)->params,(dy))) +#define GSL_MULTIFIT_FN_EVAL_F_DF(F,x,y,dy) ((*((F)->fdf))(x,(F)->params,(y),(dy))) + +typedef struct + { + const char *name; + size_t size; + int (*alloc) (void *state, size_t n, size_t p); + int (*set) (void *state, gsl_multifit_function_fdf * fdf, gsl_vector * x, gsl_vector * f, gsl_matrix * J, gsl_vector * dx); + int (*iterate) (void *state, gsl_multifit_function_fdf * fdf, gsl_vector * x, gsl_vector * f, gsl_matrix * J, gsl_vector * dx); + void (*free) (void *state); + } +gsl_multifit_fdfsolver_type; + +typedef struct + { + const gsl_multifit_fdfsolver_type * type; + gsl_multifit_function_fdf * fdf ; + gsl_vector * x; + gsl_vector * f; + gsl_matrix * J; + gsl_vector * dx; + void *state; + } +gsl_multifit_fdfsolver; + + +gsl_multifit_fdfsolver * +gsl_multifit_fdfsolver_alloc (const gsl_multifit_fdfsolver_type * T, + size_t n, size_t p); + +int +gsl_multifit_fdfsolver_set (gsl_multifit_fdfsolver * s, + gsl_multifit_function_fdf * fdf, + const gsl_vector * x); + +int +gsl_multifit_fdfsolver_iterate (gsl_multifit_fdfsolver * s); + +void +gsl_multifit_fdfsolver_free (gsl_multifit_fdfsolver * s); + +const char * gsl_multifit_fdfsolver_name (const gsl_multifit_fdfsolver * s); +gsl_vector * gsl_multifit_fdfsolver_position (const gsl_multifit_fdfsolver * s); + +int gsl_multifit_test_delta (const gsl_vector * dx, const gsl_vector * x, + double epsabs, double epsrel); + +int gsl_multifit_test_gradient (const gsl_vector * g, double epsabs); + +/* extern const gsl_multifit_fsolver_type * gsl_multifit_fsolver_gradient; */ + +GSL_VAR const gsl_multifit_fdfsolver_type * gsl_multifit_fdfsolver_lmder; +GSL_VAR const gsl_multifit_fdfsolver_type * gsl_multifit_fdfsolver_lmsder; + + +__END_DECLS + +#endif /* __GSL_MULTIFIT_NLIN_H__ */ |