X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fcategory.h;h=db4bb339bcb5e6ecab1bd0de98a76632dfe20f95;hb=3d161b40e72009aeca4bfc1cb8be82d05d7e6e2a;hp=9df3bd46e10b93a35bceef2ee335df8bc9524974;hpb=13a7d7fb2c398784b25f7f5f363c3fd86dc93eed;p=pspp-builds.git
diff --git a/src/data/category.h b/src/data/category.h
index 9df3bd46..db4bb339 100644
--- 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 . */
/*
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
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.