+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2008 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/>. */
+
#include <config.h>
#include "helpers.h"
#include <gsl/gsl_roots.h>
DATE_SECONDS
};
-#ifndef HAVE_TRUNC
-/* Return X rounded toward zero. */
-static double
-trunc (double x)
-{
- return x >= 0.0 ? floor (x) : ceil (x);
-}
-#endif /* !HAVE_TRUNC */
-
/* Stores in *UNIT the unit whose name is NAME.
Return success. */
static enum date_unit
double
idf_fdist (double P, double df1, double df2)
{
- double temp = gslextras_cdf_beta_Pinv (P, df1 / 2, df2 / 2);
+ double temp = gsl_cdf_beta_Pinv (P, df1 / 2, df2 / 2);
return temp * df2 / ((1. - temp) * df1);
}