Added scope and explanation of use of conditional inverse; added appropriate enum...

[pspp-builds.git] / src / math / linreg / linreg.h

diff --git a/src/math/linreg/linreg.h b/src/math/linreg/linreg.h
index 28ab650e4ff6a9808b15415bdb93cbaaed1c932b..d09752a21b50e272663039fcdcedb9b0c26480af 100644 (file)
--- 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
@@ -31,8 +27,9 @@ union value;
 
 enum
 {
+  PSPP_LINREG_CONDITIONAL_INVERSE,
+  PSPP_LINREG_QR,
   PSPP_LINREG_SWEEP,
-  PSPP_LINREG_SVD
 };
 
 
@@ -138,7 +135,7 @@ 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.