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 *  gretl -- Gnu Regression, Econometrics and Time-series Library
 *  Copyright (C) 2001 Allin Cottrell and Riccardo "Jack" Lucchetti
 *  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
 *  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, see <http://www.gnu.org/licenses/>.

#ifndef USERMAT_H_
#define USERMAT_H_

#define MSEL_MAX -999

enum {

typedef struct user_matrix_ user_matrix;

typedef struct matrix_subspec_ matrix_subspec;

union msel {
    int range[2];
    gretl_matrix *m;

struct matrix_subspec_ {
    int type[2];
    union msel sel[2];

#define gretl_is_matrix(s) (get_matrix_by_name(s) != NULL)

int n_user_matrices (void);

const char *get_matrix_name_by_index (int idx);

gretl_matrix *get_matrix_by_name (const char *name);

gretl_matrix *get_matrix_copy_by_name (const char *name, int *err);

gretl_matrix *steal_matrix_by_name (const char *name);

gretl_matrix *get_matrix_by_name_at_level (const char *name, int level);

gretl_matrix *user_matrix_get_matrix (user_matrix *u);

user_matrix *get_user_matrix_by_name (const char *name);

user_matrix *get_user_matrix_by_index (int idx);

int user_matrix_add (gretl_matrix *M, const char *name);

int private_matrix_add (gretl_matrix *M, const char *name);

int user_matrix_destroy_by_name (const char *name, PRN *prn);

int user_matrix_destroy (user_matrix *u);

int user_matrix_adjust_level (user_matrix *u, int adj);

const char *user_matrix_get_name (user_matrix *u);

int user_matrix_set_name (user_matrix *u, const char *name);

int user_matrix_replace_matrix (user_matrix *u, gretl_matrix *M);

int user_matrix_replace_matrix_by_name (const char *name, 
                              gretl_matrix *M);

int user_matrix_replace_submatrix (const char *mname, 
                           const gretl_matrix *S,
                           matrix_subspec *spec);

int add_or_replace_user_matrix (gretl_matrix *M, const char *name);

int copy_named_matrix_as (const char *orig, const char *newname);

int copy_matrix_as (const gretl_matrix *m, const char *newname);

int umatrix_set_colnames_from_string (const gretl_matrix *M, 
                              const char *s);

int umatrix_set_colnames_from_list (const gretl_matrix *M, 
                            const int *list,
                            const DATAINFO *pdinfo);

const char **user_matrix_get_column_names (const gretl_matrix *M);

void destroy_user_matrices (void);

int destroy_user_matrices_at_level (int level);

int destroy_private_matrices (void);

double user_matrix_get_determinant (gretl_matrix *m, int f, int *err);

gretl_matrix *user_matrix_matrix_func (gretl_matrix *m, int f, int *err);

gretl_matrix *user_matrix_vec (const gretl_matrix *m, int *err);

gretl_matrix *user_matrix_vech (const gretl_matrix *m, int *err);

gretl_matrix *user_matrix_unvech (const gretl_matrix *m, int *err);

gretl_matrix *
user_matrix_QR_decomp (const gretl_matrix *m, const char *rname, 
                   int *err);

gretl_matrix *user_matrix_SVD (const gretl_matrix *m, 
                         const char *uname, 
                         const char *vname, 
                         int *err);

gretl_matrix *user_matrix_ols (const gretl_matrix *Y, 
                         const gretl_matrix *X, 
                         const char *Uname, 
                         gretlopt opt,
                         int *err);

gretl_matrix *
user_matrix_eigen_analysis (const gretl_matrix *m, const char *rname, int symm,
                      int *err);

gretl_matrix *matrix_get_submatrix (const gretl_matrix *M, 
                            matrix_subspec *spec,
                            int *err);

gretl_matrix *user_matrix_get_submatrix (const char *name, 
                               matrix_subspec *spec,
                               int *err);

int matrix_invert_in_place (gretl_matrix *m);

int matrix_cholesky_in_place (gretl_matrix *m);

int matrix_transpose_in_place (gretl_matrix *m);

int matrix_XTX_in_place (gretl_matrix *m);

void write_matrices_to_file (FILE *fp);

void set_matrix_add_callback (void (*callback));

#endif /* USERMAT_H_ */

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