2 * linear least squares model
4 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 //FIXME avoid direct access to LLSModel from outside
33 * Linear least squares model.
35 typedef struct LLSModel {
36 double covariance[MAX_VARS + 1][MAX_VARS + 1];
37 double coeff[MAX_VARS][MAX_VARS];
38 double variance[MAX_VARS];
42 void avpriv_init_lls(LLSModel *m, int indep_count);
43 void avpriv_update_lls(LLSModel *m, double *param, double decay);
44 void avpriv_solve_lls(LLSModel *m, double threshold, unsigned short min_order);
45 double avpriv_evaluate_lls(LLSModel *m, double *param, int order);
47 #if FF_API_LLS_PRIVATE
48 void av_init_lls(LLSModel *m, int indep_count);
49 void av_update_lls(LLSModel *m, double *param, double decay);
50 void av_solve_lls(LLSModel *m, double threshold, int min_order);
51 double av_evaluate_lls(LLSModel *m, double *param, int order);
52 #endif /* FF_API_LLS_PRIVATE */
54 #endif /* AVUTIL_LLS_H */