Add missing 'distributions' files.

[pspp] / src / math / distributions.h

diff --git a/src/math/distributions.h b/src/math/distributions.h
new file mode 100644 (file)
index 0000000..1f08595
--- /dev/null
+++ b/src/math/distributions.h
@@ -0,0 +1,29 @@
+/*
+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 MATH_DISTRIBUTIONS_H
+#define MATH_DISTRIBUTIONS_H 1
+
+double ncdf_beta (double x, double a, double b, double lambda);
+double npdf_beta (double x, double a, double b, double lambda);
+
+double cdf_bvnor (double x0, double x1, double r);
+
+double idf_fdist (double P, double a, double b);
+
+#endif /* math/distributions.h */