Fixed updating of covariance matrix when both variables

[pspp-builds.git] / src / data / category.h

diff --git a/src/data/category.h b/src/data/category.h
index 9df3bd46e10b93a35bceef2ee335df8bc9524974..db4bb339bcb5e6ecab1bd0de98a76632dfe20f95 100644 (file)
--- a/src/data/category.h
+++ b/src/data/category.h
@@ -1,25 +1,23 @@
-/* PSPP - Binary encodings for categorical variables.
+/* PSPP - a program for statistical analysis.
    Copyright (C) 2005 Free Software Foundation, Inc.
 
-   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 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.
+   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
-   02110-1301, USA. */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 /*
   Functions and data structures to recode categorical variables into
   vectors and sub-rows of matrices.
-  
+
   To fit many types of statistical models, it is necessary
   to change each value of a categorical variable to a vector with binary
   entries. These vectors are then stored as sub-rows within a matrix
@@ -38,7 +36,7 @@
 #include <stddef.h>
 
 struct cat_vals;
-struct variable ; 
+struct variable ;
 union value;
 
 void cat_stored_values_create (const struct variable *);
@@ -52,6 +50,11 @@ const union value *cat_subscript_to_value (const size_t,
 
 void cat_value_update (const struct variable *, const union value *);
 
+/*
+  Return the count for the sth category.
+*/
+size_t
+cat_get_category_count (const size_t, const struct variable *);
 
 /*
   Return the number of categories of a categorical variable.