/*
lib/linreg/linreg.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.
The return value is the number of distinct variables found.
*/
int
-pspp_linreg_get_vars (const void *c_, struct variable **v)
+pspp_linreg_get_vars (const void *c_, const struct variable **v)
{
const pspp_linreg_cache *c = c_;
struct pspp_coeff *coef = NULL;
/*
Start at c->coeff[1] to avoid the intercept.
*/
- v[result] = (struct variable *) pspp_coeff_get_var (c->coeff[1], 0);
+ v[result] = pspp_coeff_get_var (c->coeff[1], 0);
result = (v[result] == NULL) ? 0 : 1;
for (coef = c->coeff[2]; coef < c->coeff[c->n_coeffs]; coef++)
}
if (i < 0 && result < c->n_coeffs)
{
- v[result] = (struct variable *) tmp;
+ v[result] = tmp;
result++;
}
}
c->indep_means = gsl_vector_alloc (p);
c->indep_std = gsl_vector_alloc (p);
c->ssx = gsl_vector_alloc (p); /* Sums of squares for the
- independent variables.
+ independent variables.
*/
c->ss_indeps = gsl_vector_alloc (p); /* Sums of squares for the
- model parameters.
+ model parameters.
*/
c->cov = gsl_matrix_alloc (p + 1, p + 1); /* Covariance matrix. */
c->n_obs = n;
cache->dfm = cache->n_indeps;
cache->dfe = cache->dft - cache->dfm;
cache->n_coeffs = X->size2 + 1; /* Adjust this later to allow for
- regression through the origin.
+ regression through the origin.
*/
if (cache->method == PSPP_LINREG_SWEEP)
{