+/*
+PSPP - a program for statistical analysis.
+Copyright (C) 2017 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/>.
+*/
+
#ifndef EXPRESSIONS_HELPERS_H
#define EXPRESSIONS_HELPERS_H
#include <ctype.h>
#include <float.h>
#include <gsl/gsl_cdf.h>
-#include <gsl/gsl_math.h>
#include <gsl/gsl_randist.h>
#include <gsl/gsl_sf.h>
#include <limits.h>
#include <math.h>
#include <stdbool.h>
-#include <data/calendar.h>
-#include <data/case.h>
-#include <data/data-in.h>
-#include <data/data-out.h>
-#include <data/dictionary.h>
-#include <data/procedure.h>
-#include <data/settings.h>
-#include <data/value.h>
-#include <data/variable.h>
-#include <data/vector.h>
-#include <language/expressions/public.h>
-#include <libpspp/compiler.h>
-#include <libpspp/message.h>
-#include <libpspp/misc.h>
-#include <libpspp/str.h>
-#include <math/moments.h>
-#include <math/random.h>
+#include "data/calendar.h"
+#include "data/case.h"
+#include "data/data-in.h"
+#include "data/data-out.h"
+#include "data/dataset.h"
+#include "data/dictionary.h"
+#include "data/settings.h"
+#include "data/value.h"
+#include "data/variable.h"
+#include "data/vector.h"
+#include "language/expressions/public.h"
+#include "libpspp/compiler.h"
+#include "libpspp/i18n.h"
+#include "libpspp/message.h"
+#include "libpspp/misc.h"
+#include "libpspp/str.h"
+#include "math/moments.h"
+#include "math/random.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
extern const struct substring empty_string;
-int compare_string (const struct substring *, const struct substring *);
+int compare_string_3way (const struct substring *, const struct substring *);
double expr_ymd_to_date (double year, double month, double day);
double expr_ymd_to_ofs (double year, double month, double day);
static inline bool
is_valid (double d)
{
- return gsl_finite (d) && d != SYSMIS;
+ return isfinite (d) && d != SYSMIS;
}
size_t count_valid (double *, size_t);
double idf_fdist (double P, double a, double b);
+double round_nearest (double x, double mult, double fuzzbits);
+double round_zero (double x, double mult, double fuzzbits);
+
+struct substring replace_string (struct expression *,
+ struct substring haystack,
+ struct substring needle,
+ struct substring replacement,
+ double n);
+
+double median (double *, size_t n);
+
#endif /* expressions/helpers.h */