1 /*
2  *  gretl -- Gnu Regression, Econometrics and Time-series Library
3  *  Copyright (C) 2001 Allin Cottrell and Riccardo "Jack" Lucchetti
4  *
5  *  This program is free software: you can redistribute it and/or modify
6  *  it under the terms of the GNU General Public License as published by
7  *  the Free Software Foundation, either version 3 of the License, or
8  *  (at your option) any later version.
9  *
10  *  This program is distributed in the hope that it will be useful,
11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  *  GNU General Public License for more details.
14  *
15  *  You should have received a copy of the GNU General Public License
16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
17  *
18  */
19 
20 #ifndef GRETL_MIDAS_H
21 #define GRETL_MIDAS_H
22 
23 typedef enum {
24     MIDAS_U,        /* "unrestricted MIDAS" */
25     MIDAS_NEALMON,  /* normalized exponential Almon */
26     MIDAS_BETA0,    /* normalized beta, last lag 0 */
27     MIDAS_BETAN,    /* normalized beta, non-zero last lag */
28     MIDAS_ALMONP,   /* plain Almon polynomial */
29     MIDAS_BETA1,    /* as MIDAS_BETA0, but 1st coeff clamped */
30     MIDAS_MAX       /* sentinel */
31 } MidasType;
32 
33 int midas_days_per_period (int days_per_week, int pd);
34 
35 int is_valid_midas_frequency_ratio (const DATASET *dset, int m);
36 
37 int get_midas_frequency (const DATASET *dset, int m);
38 
39 int midas_m_from_pd (const DATASET *dset, int freq);
40 
41 const char *midas_pdstr (const DATASET *dset, int cfac);
42 
43 DATASET *midas_aux_dataset (const int *list,
44 			    const DATASET *dset,
45 			    int *err);
46 
47 gretl_matrix *midas_list_to_vector (const int *list,
48 				    const DATASET *dset,
49 				    int *err);
50 
51 int midas_forecast_setup (const MODEL *pmod,
52 			  DATASET *dset,
53 			  ForecastMethod method,
54 			  char **pformula);
55 
56 MODEL midas_model (const int *list, const char *param,
57 		   DATASET *dset, gretlopt opt,
58 		   PRN *prn);
59 
60 char *get_midas_term_line (const MODEL *pmod, int i);
61 
62 #endif /* GRETL_MIDAS_H */
63