Added tests for second, third, fourth moments.

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@141340 13f79535-47bb-0310-9956-ffa450edef68

src/test/org/apache/commons/math/stat/univariate/UnivariateStatisticAbstractTest.java

@@ -19,7 +19,7 @@ import junit.framework.TestCase;
 
 /**
  * Test cases for the {@link UnivariateStatistic} class.
- * @version $Revision: 1.11 $ $Date: 2004/03/21 04:24:17 $
+ * @version $Revision: 1.12 $ $Date: 2004/06/27 19:33:38 $
  */
 public abstract class UnivariateStatisticAbstractTest extends TestCase {
 
@@ -41,33 +41,16 @@ public abstract class UnivariateStatisticAbstractTest extends TestCase {
     protected double sumLog = 54.7969806116451507d;
     protected double sumSq = 3595.250d;
     protected double sum = 272.90d;
+    protected double secondMoment = 210.04954545454547d;
+    protected double thirdMoment = 868.0906859504136;
+    protected double fourthMoment = 9244.080993773481;
 
     protected double tolerance = 10E-12;
 
     protected double[] testArray =
-        {
+        {12.5, 12, 11.8, 14.2, 14.9, 14.5, 21, 8.2, 10.3, 11.3,
-            12.5,
+          14.1, 9.9, 12.2, 12, 12.1, 11, 19.8, 11, 10,  8.8,
-            12,
+           9, 12.3 };
-            11.8,
-            14.2,
-            14.9,
-            14.5,
-            21,
-            8.2,
-            10.3,
-            11.3,
-            14.1,
-            9.9,
-            12.2,
-            12,
-            12.1,
-            11,
-            19.8,
-            11,
-            10,
-            8.8,
-            9,
-            12.3 };
 
     public UnivariateStatisticAbstractTest(String name) {
         super(name);

src/test/org/apache/commons/math/stat/univariate/moment/FirstMomentTest.java

@@ -19,8 +19,8 @@ import org.apache.commons.math.stat.univariate.StorelessUnivariateStatisticAbstr
 import org.apache.commons.math.stat.univariate.UnivariateStatistic;
 
 /**
- * Test cases for the {@link UnivariateStatistic} class.
+ * Test cases for the {@link FirstMoment} class.
- * @version $Revision: 1.2 $ $Date: 2004/06/17 21:37:05 $
+ * @version $Revision: 1.3 $ $Date: 2004/06/27 19:33:38 $
  */
 public class FirstMomentTest extends StorelessUnivariateStatisticAbstractTest{
 

src/test/org/apache/commons/math/stat/univariate/moment/FourthMomentTest.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2003-2004 The Apache Software Foundation.
+ * 
+ * Licensed 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.math.stat.univariate.moment;
+
+import org.apache.commons.math.stat.univariate.StorelessUnivariateStatisticAbstractTest;
+import org.apache.commons.math.stat.univariate.UnivariateStatistic;
+
+/**
+ * Test cases for the {@link FourthMoment} class.
+ * @version $Revision: 1.1 $ $Date: 2004/06/27 19:33:38 $
+ */
+public class FourthMomentTest extends StorelessUnivariateStatisticAbstractTest{
+
+    /** descriptive statistic. */
+    protected FourthMoment stat;
+    
+    /**
+     * @param name
+     */
+    public FourthMomentTest(String name) {
+        super(name);
+    }
+    
+    /**
+     * @see org.apache.commons.math.stat.univariate.UnivariateStatisticAbstractTest#getUnivariateStatistic()
+     */
+    public UnivariateStatistic getUnivariateStatistic() {
+        return new FourthMoment();
+    }
+
+    /**
+     * @see org.apache.commons.math.stat.univariate.UnivariateStatisticAbstractTest#expectedValue()
+     */
+    public double expectedValue() {
+       return this.fourthMoment;
+    }
+
+}

src/test/org/apache/commons/math/stat/univariate/moment/SecondMomentTest.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2003-2004 The Apache Software Foundation.
+ * 
+ * Licensed 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.math.stat.univariate.moment;
+
+import org.apache.commons.math.stat.univariate.StorelessUnivariateStatisticAbstractTest;
+import org.apache.commons.math.stat.univariate.UnivariateStatistic;
+
+/**
+ * Test cases for the {@link SecondMoment} class.
+ * @version $Revision: 1.1 $ $Date: 2004/06/27 19:33:38 $
+ */
+public class SecondMomentTest extends StorelessUnivariateStatisticAbstractTest {
+
+    /** descriptive statistic. */
+    protected SecondMoment stat;
+    
+    /**
+     * @param name
+     */
+    public SecondMomentTest(String name) {
+        super(name);
+    }
+    
+    /**
+     * @see org.apache.commons.math.stat.univariate.UnivariateStatisticAbstractTest#getUnivariateStatistic()
+     */
+    public UnivariateStatistic getUnivariateStatistic() {
+        return new SecondMoment();
+    }
+
+    /**
+     * @see org.apache.commons.math.stat.univariate.UnivariateStatisticAbstractTest#expectedValue()
+     */
+    public double expectedValue() {
+        return this.secondMoment;
+    }
+
+}

src/test/org/apache/commons/math/stat/univariate/moment/ThirdMomentTest.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2003-2004 The Apache Software Foundation.
+ * 
+ * Licensed 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.math.stat.univariate.moment;
+
+import org.apache.commons.math.stat.univariate.StorelessUnivariateStatisticAbstractTest;
+import org.apache.commons.math.stat.univariate.UnivariateStatistic;
+
+/**
+ * Test cases for the {@link ThirdMoment} class.
+ * @version $Revision: 1.1 $ $Date: 2004/06/27 19:33:38 $
+ */
+public class ThirdMomentTest extends StorelessUnivariateStatisticAbstractTest{
+
+    /** descriptive statistic. */
+    protected ThirdMoment stat;
+    
+    /**
+     * @param name
+     */
+    public ThirdMomentTest(String name) {
+        super(name);
+    }
+    
+    /**
+     * @see org.apache.commons.math.stat.univariate.UnivariateStatisticAbstractTest#getUnivariateStatistic()
+     */
+    public UnivariateStatistic getUnivariateStatistic() {
+        return new ThirdMoment();
+    }
+
+    /**
+     * @see org.apache.commons.math.stat.univariate.UnivariateStatisticAbstractTest#expectedValue()
+     */
+    public double expectedValue() {
+      return this.thirdMoment;
+    }
+
+}