-/*
- lib/linreg/linreg.h
-
- 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.
-*/
+/* PSPP - a program for statistical analysis.
+ 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 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
+ 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, see <http://www.gnu.org/licenses/>. */
#ifndef LINREG_H
#define LINREG_H
enum
{
+ PSPP_LINREG_CONDITIONAL_INVERSE,
+ PSPP_LINREG_QR,
PSPP_LINREG_SWEEP,
- PSPP_LINREG_SVD
};
{
int n_obs; /* Number of observations. */
int n_indeps; /* Number of independent variables. */
- int n_coeffs;
+ int n_coeffs; /* The intercept is not considered a
+ coefficient here. */
/*
The variable struct is ignored during estimation. It is here so
gsl_vector *residuals;
struct pspp_coeff **coeff;
+ double intercept;
int method; /* Method to use to estimate parameters. */
/*
Means and standard deviations of the variables.
gsl_vector *ssx; /* Centered sums of squares for independent
variables, i.e. \sum (x[i] - mean(x))^2. */
double ssy; /* Centered sums of squares for dependent
- variable.
+ variable.
*/
/*
Covariance matrix of the parameter estimates.
/*
Returns pointers to the variables used in the model.
*/
- int (*get_vars) (const void *, struct variable **);
+ int (*get_vars) (const void *, const struct variable **);
struct variable *resid;
struct variable *pred;
/*
All variables used in the model.
*/
-int pspp_linreg_get_vars (const void *, struct variable **);
+int pspp_linreg_get_vars (const void *, const struct variable **);
#endif