+++ /dev/null
-/* PSPP - Creates design matrices.
- Copyright (C) 2005 Free Software Foundation, Inc.
- Written by Jason H Stover <jason@sakla.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. */
-
-/*
- Create design matrices for procedures that need them.
- */
-
-#ifndef DESIGN_MATRIX_H
-#define DESIGN_MATRIX_H
-
-#include <gsl/gsl_matrix.h>
-#include <stdbool.h>
-#include <data/category.h>
-#include <data/cat-routines.h>
-struct design_matrix_var
-{
- size_t first_column; /* First column for this variable in
- the design_matix. If this variable
- is categorical, its values are
- stored in multiple, contiguous
- columns, as dictated by its vector
- encoding in the variable's struct
- cat_vals.
- */
- size_t last_column;
- const struct variable *v;
-};
-struct design_matrix
-{
- gsl_matrix *m;
- struct design_matrix_var *vars; /* Element i corresponds to
- the variable whose values
- are stored in at least one
- column of m. If that
- variable is categorical
- with more than two
- categories, its values are
- stored in multiple,
- contiguous columns. The
- variable's values are then
- stored in the columns
- first_column through
- last_column of the
- design_matrix_var
- structure.
- */
- size_t n_vars;
-};
-union value *cat_vector_to_value (const gsl_vector *, struct variable *);
-
-struct design_matrix *design_matrix_create (int, const struct variable *[],
- const size_t);
-
-void design_matrix_destroy (struct design_matrix *);
-
-void design_matrix_set_categorical (struct design_matrix *, size_t,
- const struct variable *,
- const union value *);
-
-void design_matrix_set_numeric (struct design_matrix *, size_t,
- const struct variable *, const union value *);
-
-size_t design_matrix_var_to_column (const struct design_matrix *,
- const struct variable *);
-
-struct variable *design_matrix_col_to_var (const struct design_matrix *,
- size_t);
-
-#endif