removed obsolete files

[pspp-builds.git] / lib / linreg / coefficient.c

diff --git a/lib/linreg/coefficient.c b/lib/linreg/coefficient.c
deleted file mode 100644 (file)
index 5b9266e..0000000
--- a/lib/linreg/coefficient.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/* lib/linreg/coefficient.c
-
-   Copyright (C) 2005 Free Software Foundation, Inc.
-   Written by Jason H Stover.
-
-   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
-   02111-1307, USA.
- */
-
-/*
-  Accessor functions for matching coefficients and variables.
- */
-#include <assert.h>
-#include "pspp_linreg.h"
-#include <gl/xalloc.h>
-
-
-struct varinfo
-{
-  const struct variable *v; /* Variable associated with this
-                              coefficient. Note this variable may not
-                              be unique. In other words, a
-                              coefficient structure may have other
-                              v_info's, each with its own variable.
-                            */
-  const union value *val; /* Value of the variable v which this
-                            varinfo refers to. This member is relevant
-                            only to categorical variables.
-                         */
-};
-
-void pspp_linreg_coeff_free (struct pspp_linreg_coeff *c)
-{
-  free (c);
-}
-
-/*
-  Initialize the variable and value pointers inside the
-  coefficient structures for the linear model.
- */
-void
-pspp_linreg_coeff_init (pspp_linreg_cache *c, struct design_matrix *X)
-{
-  size_t i;
-  size_t j;
-  int n_vals = 1;
-  struct pspp_linreg_coeff *coeff;
-  
-  c->coeff = xnmalloc (X->m->size2 + 1, sizeof (*c->coeff));
-  for (i = 0; i < X->m->size2; i++)
-    {
-      j = i + 1;               /* The first coefficient is the intercept. */
-      coeff = c->coeff + j;
-      coeff->n_vars = n_vals; /* Currently, no procedures allow interactions.
-                                This will have to change when procedures that
-                                allow interaction terms are written.
-                             */
-      coeff->v_info = xnmalloc (coeff->n_vars, sizeof (*coeff->v_info));
-      assert (coeff->v_info != NULL);
-      coeff->v_info->v = (const struct variable *) design_matrix_col_to_var (X, i);
-      
-      if (coeff->v_info->v->type == ALPHA)
-       {
-         size_t k;
-         k = design_matrix_var_to_column (X, coeff->v_info->v);
-         assert (k <= i);
-         k = i - k;
-         coeff->v_info->val = cat_subscript_to_value (k, (struct variable *) coeff->v_info->v);
-       }
-    }
-}
-void
-pspp_linreg_coeff_set_estimate (struct pspp_linreg_coeff *c,
-                               double estimate)
-{
-  c->estimate = estimate;
-}
-void
-pspp_linreg_coeff_set_std_err (struct pspp_linreg_coeff *c,
-                              double std_err)
-{
-  c->std_err = std_err;
-}
-/*
-  How many variables are associated with this coefficient?
- */
-int
-pspp_linreg_coeff_get_n_vars (struct pspp_linreg_coeff *c)
-{
-  return c->n_vars;
-}                            
-/*
-  Which variable does this coefficient match?
- */
-const struct variable *
-pspp_linreg_coeff_get_var (struct pspp_linreg_coeff *c, int i)
-{
-  assert (i < c->n_vars);
-  return (c->v_info + i)->v;
-}
-/* 
-   Which value is associated with this coefficient/variable comination? 
-*/
-const union value *
-pspp_linreg_coeff_get_value (struct pspp_linreg_coeff *c,
-                            const struct variable *v)
-{
-  int i = 0;
-  const struct variable *candidate;
-
-  while (i < c->n_vars)
-    {
-      candidate = pspp_linreg_coeff_get_var (c, i);
-      if (v->index == candidate->index)
-       {
-         return (c->v_info + i)->val;
-       }
-      i++;
-    }
-  return NULL;
-}