| /* |
| * 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.math3.distribution; |
| |
| import org.apache.commons.math3.util.Precision; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| /** |
| * Test cases for LogisticsDistribution. |
| */ |
| public class LogisticsDistributionTest extends RealDistributionAbstractTest { |
| |
| @Test |
| public void testParameters() { |
| LogisticDistribution d = makeDistribution(); |
| Assert.assertEquals(2, d.getLocation(), Precision.EPSILON); |
| Assert.assertEquals(5, d.getScale(), Precision.EPSILON); |
| } |
| |
| @Test |
| public void testSupport() { |
| LogisticDistribution d = makeDistribution(); |
| Assert.assertTrue(Double.isInfinite(d.getSupportLowerBound())); |
| Assert.assertTrue(Double.isInfinite(d.getSupportUpperBound())); |
| Assert.assertTrue(d.isSupportConnected()); |
| } |
| |
| @Override |
| public LogisticDistribution makeDistribution() { |
| return new LogisticDistribution(2, 5); |
| } |
| |
| @Override |
| public double[] makeCumulativeTestPoints() { |
| return new double[] { |
| -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 |
| }; |
| } |
| |
| @Override |
| public double[] makeDensityTestValues() { |
| return new double[] { |
| 0.03173698, 0.03557889, 0.03932239, 0.04278194, 0.04575685, 0.04805215, |
| 0.04950331, 0.05000000, 0.04950331, 0.04805215, 0.04575685 |
| }; |
| } |
| |
| @Override |
| public double[] makeCumulativeTestValues() { |
| return new double[] { |
| 0.1978161, 0.2314752, 0.2689414, 0.3100255, 0.3543437, 0.4013123, |
| 0.4501660, 0.5000000, 0.5498340, 0.5986877, 0.6456563 |
| }; |
| } |
| |
| } |
| |