--- /dev/null
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2006, 2011 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 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/>. */
+
+#if !npar_h
+#define npar_h 1
+
+#include <stddef.h>
+#include <stdbool.h>
+#include "data/missing-values.h"
+#include "data/value.h"
+
+typedef const struct variable *variable_pair[2];
+
+struct hmapx;
+struct casefilter;
+struct casereader;
+struct dataset;
+
+
+struct npar_test
+{
+ void (*execute) (const struct dataset *,
+ struct casereader *,
+ enum mv_class exclude,
+ const struct npar_test *,
+ bool,
+ double);
+
+ void (*insert_variables) (const struct npar_test *,
+ struct hmapx *);
+};
+
+
+struct one_sample_test
+{
+ struct npar_test parent;
+ const struct variable **vars;
+ size_t n_vars;
+};
+
+struct two_sample_test
+{
+ struct npar_test parent;
+ variable_pair *pairs;
+ size_t n_pairs;
+};
+
+
+struct n_sample_test
+{
+ struct npar_test parent;
+ const struct variable **vars;
+ size_t n_vars;
+
+ union value val1, val2;
+ const struct variable *indep_var;
+};
+
+#endif