diff --git a/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RNbinomMu.java b/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RNbinomMu.java
new file mode 100644
index 0000000000000000000000000000000000000000..bac788a88f092635d86a66edb0f39d218c08f813
--- /dev/null
+++ b/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RNbinomMu.java
@@ -0,0 +1,30 @@
+/*
+ * This material is distributed under the GNU General Public License
+ * Version 2. You may review the terms of this license at
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * Copyright (C) 1998 Ross Ihaka
+ * Copyright (c) 1998--2008, The R Core Team
+ * Copyright (c) 2016, 2016, Oracle and/or its affiliates
+ *
+ * All rights reserved.
+ */
+package com.oracle.truffle.r.library.stats;
+
+import com.oracle.truffle.r.library.stats.RandGenerationFunctions.RandFunction2_Double;
+import com.oracle.truffle.r.library.stats.RandGenerationFunctions.RandomNumberProvider;
+
+public final class RNbinomMu implements RandFunction2_Double {
+ private final RGamma rgamma = new RGamma();
+
+ @Override
+ public double evaluate(double size, double mu, RandomNumberProvider rand) {
+ if (!Double.isFinite(mu) || Double.isNaN(size) || size <= 0 || mu < 0) {
+ return StatsUtil.mlError();
+ }
+ if (!Double.isFinite(size)) {
+ size = Double.MAX_VALUE / 2.;
+ }
+ return (mu == 0) ? 0 : RPois.rpois(rgamma.evaluate(size, mu / size, rand), rand);
+ }
+}
diff --git a/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RPois.java b/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RPois.java
index 46566a17fff905fdc1e248e09d1c72c430465ef8..ee2e08713abb3ef10bd0049d6f59f90983262a08 100644
--- a/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RPois.java
+++ b/com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RPois.java
@@ -35,30 +35,29 @@ public final class RPois {
1., 1., 2., 6., 24., 120., 720., 5040., 40320., 362880.
};
- public static double rpois(double mu, RandomNumberProvider rand) {
-
- /* These are static --- persistent between calls for same mu : */
- // TODO: state variables
- int l = 0;
- int m = 0;
- double b1;
- double b2;
- double c = 0;
- double c0 = 0;
- double c1 = 0;
- double c2 = 0;
- double c3 = 0;
- double[] pp = new double[36];
- double p0 = 0;
- double p = 0;
- double q = 0;
- double s = 0;
- double d = 0;
- double omega = 0;
- double bigL = 0; /* integer "w/o overflow" */
- double muprev = 0.;
- double muprev2 = 0.; /* , muold = 0. */
+ /* These are static --- persistent between calls for same mu : */
+ // TODO: state variables
+ static int l = 0;
+ static int m = 0;
+ static double b1;
+ static double b2;
+ static double c = 0;
+ static double c0 = 0;
+ static double c1 = 0;
+ static double c2 = 0;
+ static double c3 = 0;
+ static double[] pp = new double[36];
+ static double p0 = 0;
+ static double p = 0;
+ static double q = 0;
+ static double s = 0;
+ static double d = 0;
+ static double omega = 0;
+ static double bigL = 0; /* integer "w/o overflow" */
+ static double muprev = 0.;
+ static double muprev2 = 0.; /* , muold = 0. */
+ public static double rpois(double mu, RandomNumberProvider rand) {
/* Local Vars [initialize some for -Wall]: */
double del;
double difmuk = 0.;
diff --git a/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/ForeignFunctions.java b/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/ForeignFunctions.java
index cd17d41445ec856679249cd966296dd4b067e2c6..8ea4edee788fb59b136d3460cfd73a2e5339ec0e 100644
--- a/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/ForeignFunctions.java
+++ b/com.oracle.truffle.r.nodes.builtin/src/com/oracle/truffle/r/nodes/builtin/base/foreign/ForeignFunctions.java
@@ -58,6 +58,7 @@ import com.oracle.truffle.r.library.stats.RBeta;
import com.oracle.truffle.r.library.stats.RCauchy;
import com.oracle.truffle.r.library.stats.RGamma;
import com.oracle.truffle.r.library.stats.RLogis;
+import com.oracle.truffle.r.library.stats.RNbinomMu;
import com.oracle.truffle.r.library.stats.RNchisq;
import com.oracle.truffle.r.library.stats.RWeibull;
import com.oracle.truffle.r.library.stats.RandGenerationFunctionsFactory;
@@ -387,6 +388,8 @@ public class ForeignFunctions {
return RandGenerationFunctionsFactory.Function2_DoubleNodeGen.create(new RWeibull());
case "rnchisq":
return RandGenerationFunctionsFactory.Function2_DoubleNodeGen.create(new RNchisq());
+ case "rnbinom_mu":
+ return RandGenerationFunctionsFactory.Function2_DoubleNodeGen.create(new RNbinomMu());
case "qgamma":
return StatsFunctionsFactory.Function3_2NodeGen.create(new QgammaFunc());
case "dbinom":
diff --git a/com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/library/stats/TestExternal_rnbinom.java b/com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/library/stats/TestExternal_rnbinom.java
new file mode 100644
index 0000000000000000000000000000000000000000..c8385786a2adca7b6873fd5f998a489dbdc135a4
--- /dev/null
+++ b/com.oracle.truffle.r.test/src/com/oracle/truffle/r/test/library/stats/TestExternal_rnbinom.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.oracle.truffle.r.test.library.stats;
+
+import org.junit.Test;
+
+import com.oracle.truffle.r.test.TestBase;
+
+public class TestExternal_rnbinom extends TestBase {
+ @Test
+ public void testRbinomWithMu() {
+ assertEval("set.seed(42); rnbinom(5, 1, mu=2)");
+ // TODO: maybe problem with state variables, see RNbinomMu
+ assertEval(Ignored.Unimplemented, "set.seed(42); rnbinom(100, c(-1, 0, 1, 0.8, 10, NA, NaN, 1/0, -1/0), mu=c(-1, 0, 1, 0.8, 3, 10, NA, NaN, 1/0, -1/0))");
+ }
+}
diff --git a/mx.fastr/copyrights/overrides b/mx.fastr/copyrights/overrides
index 3d0c71c0085a963fbe60926f1f5c35e735b613bb..fb33bd32feb3d8e217e53dbc3ecfe327fbde0042 100644
--- a/mx.fastr/copyrights/overrides
+++ b/mx.fastr/copyrights/overrides
@@ -59,6 +59,7 @@ com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/TOMS708.java
com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/SNorm.java,gnu_r_ihaka_core.copyright
com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/SExp.java,gnu_r_ihaka_core.copyright
com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RGamma.java,gnu_r_ihaka_core.copyright
+com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RNbinomMu.java,gnu_r_ihaka_core.copyright
com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RLogis.java,gnu_r_ihaka_core.copyright
com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/Rf.java,gnu_r_ihaka_core.copyright
com.oracle.truffle.r.library/src/com/oracle/truffle/r/library/stats/RChisq.java,gnu_r_ihaka_core.copyright