1 /*
2 * Copyright 2003-2004 The Apache Software Foundation.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.apache.commons.math.stat.descriptive.moment;
17
18 import org.apache.commons.math.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
19 import org.apache.commons.math.stat.descriptive.UnivariateStatistic;
20
21 /**
22 * Test cases for the {@link SecondMoment} class.
23 * @version $Revision: 155427 $ $Date: 2005-02-26 06:11:52 -0700 (Sat, 26 Feb 2005) $
24 */
25 public class SecondMomentTest extends StorelessUnivariateStatisticAbstractTest {
26
27 /** descriptive statistic. */
28 protected SecondMoment stat;
29
30 /**
31 * @param name
32 */
33 public SecondMomentTest(String name) {
34 super(name);
35 }
36
37 /**
38 * @see org.apache.commons.math.stat.descriptive.UnivariateStatisticAbstractTest#getUnivariateStatistic()
39 */
40 public UnivariateStatistic getUnivariateStatistic() {
41 return new SecondMoment();
42 }
43
44 /**
45 * @see org.apache.commons.math.stat.descriptive.UnivariateStatisticAbstractTest#expectedValue()
46 */
47 public double expectedValue() {
48 return this.secondMoment;
49 }
50
51 }