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commit 536ee3f6450db46f6aaf603d4e6392e0ff92d074
Author: Gilles Sadowski <gillese...@gmail.com>
AuthorDate: Wed Jun 2 03:26:14 2021 +0200
MATH-1598: Class is not used anymore within "Commons Math".
Functionality is available from "Commons RNG".
---
.../legacy/random/UniformRandomGenerator.java | 58 ----------------------
.../legacy/random/UniformRandomGeneratorTest.java | 40 ---------------
2 files changed, 98 deletions(-)
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/random/UniformRandomGenerator.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/random/UniformRandomGenerator.java
deleted file mode 100644
index a8ef515..0000000
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/random/UniformRandomGenerator.java
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.commons.math4.legacy.random;
-
-import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
-import org.apache.commons.rng.UniformRandomProvider;
-
-/**
- * This class implements a normalized uniform random generator.
- *
- * <p>
- * It generates values from a uniform distribution with mean
- * equal to 0 and standard deviation equal to 1.
- * Generated values fall in the range \( [-\sqrt{3}, +\sqrt{3}] \).
- * </p>
- *
- * @since 1.2
- */
-public class UniformRandomGenerator implements NormalizedRandomGenerator {
- /** Square root of three. */
- private static final double SQRT3 = AccurateMath.sqrt(3);
- /** Underlying generator. */
- private final UniformRandomProvider generator;
-
- /**
- * Creates a new generator.
- *
- * @param generator Underlying random generator.
- */
- public UniformRandomGenerator(UniformRandomProvider generator) {
- this.generator = generator;
- }
-
- /**
- * Generates a random scalar with zero mean and unit standard deviation.
- *
- * @return a random scalar in the range \( [-\sqrt{3}, +\sqrt{3}] \).
- */
- @Override
- public double nextNormalizedDouble() {
- return SQRT3 * (2 * generator.nextDouble() - 1);
- }
-}
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/random/UniformRandomGeneratorTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/random/UniformRandomGeneratorTest.java
deleted file mode 100644
index 86a5efb..0000000
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/random/UniformRandomGeneratorTest.java
+++ /dev/null
@@ -1,40 +0,0 @@
-//Licensed to the Apache Software Foundation (ASF) under one
-//or more contributor license agreements. See the NOTICE file
-//distributed with this work for additional information
-//regarding copyright ownership. The ASF licenses this file
-//to you under the Apache License, Version 2.0 (the
-//"License"); you may not use this file except in compliance
-//with the License. You may obtain a copy of the License at
-
-//http://www.apache.org/licenses/LICENSE-2.0
-
-//Unless required by applicable law or agreed to in writing,
-//software distributed under the License is distributed on an
-//"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-//KIND, either express or implied. See the License for the
-//specific language governing permissions and limitations
-//under the License.
-
-package org.apache.commons.math4.legacy.random;
-
-import org.apache.commons.rng.UniformRandomProvider;
-import org.apache.commons.rng.simple.RandomSource;
-import org.apache.commons.math4.legacy.stat.StatUtils;
-import org.junit.Assert;
-import org.junit.Test;
-
-
-public class UniformRandomGeneratorTest {
-
- @Test
- public void testMeanAndStandardDeviation() {
- final UniformRandomProvider rg =
RandomSource.create(RandomSource.ISAAC, 17399225432L);
- UniformRandomGenerator generator = new UniformRandomGenerator(rg);
- double[] sample = new double[10000];
- for (int i = 0; i < sample.length; ++i) {
- sample[i] = generator.nextNormalizedDouble();
- }
- Assert.assertEquals(0.0, StatUtils.mean(sample), 0.07);
- Assert.assertEquals(1.0, StatUtils.variance(sample), 0.02);
- }
-}
