/* fit/gsl_fit.h

 * 

 * Copyright (C) 2000, 2007 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 3 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_FIT_H__

#define __GSL_FIT_H__

#include <stdlib.h>

#include <gsl/gsl_math.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_fit_linear (const double * x, const size_t xstride,

                    const double * y, const size_t ystride,

                    const size_t n,

                    double * c0, double * c1, 

                    double * cov00, double * cov01, double * cov11, 

                    double * sumsq);

int gsl_fit_wlinear (const double * x, const size_t xstride,

                     const double * w, const size_t wstride,

                     const double * y, const size_t ystride,

                     const size_t n,

                     double * c0, double * c1, 

                     double * cov00, double * cov01, double * cov11, 

                     double * chisq);

int

gsl_fit_linear_est (const double x, 

                    const double c0, const double c1, 

                    const double cov00, const double cov01, const double cov11,

                    double *y, double *y_err);

int gsl_fit_mul (const double * x, const size_t xstride,

                 const double * y, const size_t ystride,

                 const size_t n,

                 double * c1, 

                 double * cov11, 

                 double * sumsq);

int gsl_fit_wmul (const double * x, const size_t xstride,

                  const double * w, const size_t wstride,

                  const double * y, const size_t ystride,

                  const size_t n,

                  double * c1, 

                  double * cov11, 

                  double * sumsq);

int

gsl_fit_mul_est (const double x, 

                 const double c1, 

                 const double cov11,

                 double *y, double *y_err);

__END_DECLS

#endif /* __GSL_FIT_H__ */