/usr/include/gwyddion/libgwyddion/gwynlfit.h is in libgwyddion20-dev 2.38-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* @(#) $Id: gwynlfit.h 15598 2013-11-11 12:33:32Z yeti-dn $
* Copyright (C) 2000-2003 Martin Siler.
* Copyright (C) 2004,2005 David Necas (Yeti), Petr Klapetek.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
*
* 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 __GWY_NLFIT_H__
#define __GWY_NLFIT_H__
#include <glib.h>
G_BEGIN_DECLS
typedef gdouble (*GwyNLFitFunc)(gdouble x,
gint n_param,
const gdouble *param,
gpointer user_data,
gboolean *fres);
typedef void (*GwyNLFitDerFunc)(gdouble x,
gint n_param,
const gdouble *param,
const gboolean *fixed_param,
GwyNLFitFunc fmarq,
gpointer user_data,
gdouble *deriv,
gboolean *dres);
typedef struct _GwyNLFitter GwyNLFitter;
struct _GwyNLFitter {
GwyNLFitFunc fmarq; /* fitting function */
GwyNLFitDerFunc dmarq; /* fitting function derivations */
gint maxiter; /* max number of iterations */
gboolean eval; /* success? */
gdouble *covar; /* covariance matrix */
gdouble dispersion; /* dispersion */
gdouble mfi; /* fitting parameters --
fi, snizeni, zvyseni lambda, minimalni lambda */
gdouble mdec;
gdouble minc;
gdouble mtol;
};
GwyNLFitter* gwy_math_nlfit_new (GwyNLFitFunc ff,
GwyNLFitDerFunc df);
void gwy_math_nlfit_free (GwyNLFitter *nlfit);
gdouble gwy_math_nlfit_fit (GwyNLFitter *nlfit,
gint n_dat,
const gdouble *x,
const gdouble *y,
gint n_param,
gdouble *param,
gpointer user_data);
gdouble gwy_math_nlfit_fit_full (GwyNLFitter *nlfit,
gint n_dat,
const gdouble *x,
const gdouble *y,
const gdouble *weight,
gint n_param,
gdouble *param,
const gboolean *fixed_param,
const gint *link_map,
gpointer user_data);
gint gwy_math_nlfit_get_max_iterations(GwyNLFitter *nlfit);
void gwy_math_nlfit_set_max_iterations(GwyNLFitter *nlfit,
gint maxiter);
gboolean gwy_math_nlfit_succeeded (GwyNLFitter *nlfit);
gdouble gwy_math_nlfit_get_dispersion (GwyNLFitter *nlfit);
gdouble gwy_math_nlfit_get_correlations (GwyNLFitter *nlfit,
gint par1,
gint par2);
gdouble gwy_math_nlfit_get_sigma (GwyNLFitter *nlfit,
gint par);
void gwy_math_nlfit_derive (gdouble x,
gint n_param,
const gdouble *param,
const gboolean *fixed_param,
GwyNLFitFunc ff,
gpointer user_data,
gdouble *deriv,
gboolean *dres);
G_END_DECLS
#endif /* __GWY_NFLIT_H__ */
/* vim: set cin et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
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