X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Flinreg%2Flinreg.h;h=f256ef9d3fca6ea7f208022d258a7a605f16568c;hb=679e253a4777564db48ccec70b8ce2f6e5b7e46b;hp=a3b0c780e24023e261d34542d8ac4f1f3d373576;hpb=4d12096b7b029b064fce4df4e3b1e153ed932b9a;p=pspp

diff --git a/src/math/linreg/linreg.h b/src/math/linreg/linreg.h
index a3b0c780e2..f256ef9d3f 100644
--- a/src/math/linreg/linreg.h
+++ b/src/math/linreg/linreg.h
@@ -1,22 +1,18 @@
-/*
-  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
@@ -26,7 +22,7 @@
 #include <gsl/gsl_matrix.h>
 
 struct variable;
-struct pspp_linreg_coeff;
+struct pspp_coeff;
 union value;
 
 enum
@@ -42,8 +38,6 @@ enum
  */
 struct pspp_linreg_opts_struct
 {
-  int resid;			/* Should the residuals be returned? */
-
   int get_depvar_mean_std;
   int *get_indep_mean_std;	/* Array of booleans
 				   dictating which
@@ -103,13 +97,13 @@ struct pspp_linreg_cache_struct
   int n_coeffs;
 
   /*
-    The variable struct is ignored during estimation. It is here so
-    the calling procedure can find the variable used in the model.
+     The variable struct is ignored during estimation. It is here so
+     the calling procedure can find the variable used in the model.
    */
   const struct variable *depvar;
 
   gsl_vector *residuals;
-  struct pspp_linreg_coeff *coeff;
+  struct pspp_coeff **coeff;
   int method;			/* Method to use to estimate parameters. */
   /*
      Means and standard deviations of the variables.
@@ -140,8 +134,8 @@ struct pspp_linreg_cache_struct
   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.
    */
@@ -163,8 +157,14 @@ struct pspp_linreg_cache_struct
 		     const void *, int);
   double (*residual) (const struct variable **,
 		      const union value **,
-		      const union value *,
-		      const void *, int);
+		      const union value *, const void *, int);
+  /*
+     Returns pointers to the variables used in the model.
+   */
+  int (*get_vars) (const void *, const struct variable **);
+  struct variable *resid;
+  struct variable *pred;
+
 };
 
 typedef struct pspp_linreg_cache_struct pspp_linreg_cache;
@@ -195,4 +195,8 @@ pspp_linreg_predict (const struct variable **, const union value **,
 double
 pspp_linreg_residual (const struct variable **, const union value **,
 		      const union value *, const void *, int);
+/*
+  All variables used in the model.
+ */
+int pspp_linreg_get_vars (const void *, const struct variable **);
 #endif