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Java > Open Source Codes > org > hammurapi > inspectors > metrics > statistics > tests > DescriptiveStatTest


1 /*
2  * Created on Mar 18, 2004
3  *
4  * To change the template for this generated file go to
5  * Window - Preferences - Java - Code Generation - Code and Comments
6  */
7 package org.hammurapi.inspectors.metrics.statistics.tests;
8
9 import junit.framework.Test;
10 import junit.framework.TestCase;
11 import junit.framework.TestSuite;
12
13 import org.hammurapi.inspectors.metrics.statistics.DescriptiveStatistic;
14 import org.hammurapi.inspectors.metrics.statistics.IntVector;
15
16 /**
17  * @author mucbj0
18  *
19  * To change the template for this generated type comment go to Window -
20  * Preferences - Java - Code Generation - Code and Comments
21  */
22 public class DescriptiveStatTest extends TestCase {
23     /**
24      * The suite() method.
25      */
26     public static Test suite() {
27         //
28 return new TestSuite(DescriptiveStatTest.class);
29     }// End o
30
31     /**
32      * This method is the starting point of the test programe
33      *
34      * @param strArgsArr
35      * The command line parameters passed.
36      * @exception Exception
37      * A Exception object.
38      */
39     public static void main(String JavaDoc[] strArgsArr) throws Exception JavaDoc {
40         junit.textui.TestRunner.run(suite());
41     }// End of main
42
43     public void testFrequency1(){
44         IntVector sortedData = new IntVector ( );
45         sortedData.addElement( 1 );
46         sortedData.addElement( 1 );
47         sortedData.addElement( 1 );
48         sortedData.addElement( 3 );
49         sortedData.addElement( 3 );
50         sortedData.addElement( 5 );
51         sortedData.addElement( 5 );
52         sortedData.addElement( 7 );
53
54         IntVector distinctValues = new IntVector ( );
55         IntVector frequencies = new IntVector ( );
56         new DescriptiveStatistic().frequencies( sortedData, distinctValues, frequencies);
57         System.out.println( frequencies );
58         assertTrue( "", frequencies.elementAt(0) == 3 );
59         assertTrue( "", frequencies.elementAt(1) == 2 );
60         assertTrue( "", frequencies.elementAt(2) == 2 );
61         assertTrue( "", frequencies.elementAt(3) == 1 );
62     }
63
64
65     public void testFrequency2(){
66         IntVector sortedData = new IntVector ( );
67         sortedData.addElement( 1 );
68         sortedData.addElement( 1 );
69         sortedData.addElement( 1 );
70         sortedData.addElement( 1 );
71         sortedData.addElement( 1 );
72         sortedData.addElement( 1 );
73         sortedData.addElement( 1 );
74         sortedData.addElement( 1 );
75
76         IntVector distinctValues = new IntVector ( );
77         IntVector frequencies = new IntVector ( );
78         new DescriptiveStatistic().frequencies( sortedData, distinctValues, frequencies);
79         System.out.println( frequencies );
80         assertTrue( "", frequencies.size() == 1 );
81         assertTrue( "", frequencies.elementAt(0) == 8 );
82
83     }
84
85
86     public void testFrequencyEmptyList(){
87         IntVector sortedData = new IntVector ( );
88
89         IntVector distinctValues = new IntVector ( );
90         IntVector frequencies = new IntVector ( );
91         new DescriptiveStatistic().frequencies( sortedData, distinctValues, frequencies);
92         System.out.println( frequencies );
93         assertTrue( "", frequencies.isEmpty() );
94
95     }
96
97     public void testAggregateData(){
98          // int[] numbers = { 26, 26, 27, 27, 27, 32, 42, 42, 42, 42, 43, 43, 43, 43, 43, 44, 44, 45, 45, 46, 46, 48, 49, 51, 52, 53, 54, 54, 55, 61, 65, 66, 67, 68, 69, 71, 72, 74, 74, 74, 82, 89, 103, 106, 108, 112, 113, 127, 139, 140, 145, 150, 161, 175, 179, 183, 202, 211, 256, 269, 276, 286, 302, 309, 324, 346, 387, 684, 720, 1228, 1229, 2569 };
99 int[] numbers = { 26, 26, 26, 26, 26,42, 65,175, 387, 684, 720, 1228, 1229, 2569 };
100         IntVector distribution = new IntVector( );
101         IntVector distinctValues = new IntVector( );
102         IntVector frequencies = new IntVector( );
103         for ( int i= 0; i< numbers.length; i++){
104             int index = numbers[i];
105             // System.out.println( index + " -> "+index % 100);
106 int piv = (index / 50) *50;
107             System.out.println( index + " -> " + piv );
108                 distribution.addElement(piv);
109         }
110         System.out.println("-------------------------------------------" );
111
112         new DescriptiveStatistic().frequencies( distribution, distinctValues, frequencies);
113         assertTrue( "frequencies.size() is "+frequencies.size(),frequencies.size()== 8 );
114         assertTrue( "",frequencies.elementAt(0)== 6 );
115         assertTrue( "",frequencies.elementAt(7)== 1 );
116         assertTrue( "distinctValues.size is "+ distinctValues.size(),distinctValues.size()== 8 );
117         assertTrue( "",distinctValues.elementAt(0)== 0 );
118         assertTrue( "",distinctValues.elementAt(7)== 2550 );
119
120         //System.out.println( distribution );
121 //System.out.println( distinctValues );
122 //System.out.println( frequencies );
123
124     }
125     public void testSortIntVector(){
126      // int[] numbers = { 26, 26, 27, 27, 27, 32, 42, 42, 42, 42, 43, 43, 43, 43, 43, 44, 44, 45, 45, 46, 46, 48, 49, 51, 52, 53, 54, 54, 55, 61, 65, 66, 67, 68, 69, 71, 72, 74, 74, 74, 82, 89, 103, 106, 108, 112, 113, 127, 139, 140, 145, 150, 161, 175, 179, 183, 202, 211, 256, 269, 276, 286, 302, 309, 324, 346, 387, 684, 720, 1228, 1229, 2569 };
127 int[] numbers = {684, 26, 26, 720, 1228, 26, 65,175, 387, 1229, 2569, 26, 26,42};
128         IntVector distribution = new IntVector( numbers );
129         // System.out.println( distribution );
130 distribution.sort();
131         // System.out.println( distribution );
132 assertTrue( "distribution.size is "+ distribution.size(),distribution.size()== 14 );
133         assertTrue( "",distribution.elementAt(0)== 26 );
134         assertTrue( "",distribution.elementAt(13)== 2569 );
135     }
136
137     public void testSumIntVector1(){
138         IntVector sortedData = new IntVector ( );
139         sortedData.addElement( 1 );
140         sortedData.addElement( 1 );
141         sortedData.addElement( 1 );
142         sortedData.addElement( 3 );
143         sortedData.addElement( 3 );
144         sortedData.addElement( 5 );
145         sortedData.addElement( 5 );
146         sortedData.addElement( 7 );
147         int sum = new DescriptiveStatistic().sum(sortedData);
148         assertTrue( "",sum == 26 );
149
150     }
151     public void testSumIntVector2(){
152         IntVector sortedData = new IntVector ( );
153         sortedData.addElement( 1 );
154         sortedData.addElement( 1 );
155         sortedData.addElement( 1 );
156         sortedData.addElement( 3 );
157         sortedData.addElement( 3 );
158         sortedData.addElement( 5 );
159         sortedData.addElement( 5 );
160         sortedData.addElement( 7 );
161         sortedData.addElement( 1000 );
162         int sum = new DescriptiveStatistic().sum(sortedData);
163         assertTrue( "",sum == 1026 );
164
165     }
166
167     public void testMeanIntVector1(){
168         IntVector sortedData = new IntVector ( );
169         sortedData.addElement( 1 );
170         sortedData.addElement( 1 );
171         sortedData.addElement( 1 );
172         sortedData.addElement( 3 );
173         sortedData.addElement( 3 );
174         sortedData.addElement( 5 );
175         sortedData.addElement( 5 );
176         sortedData.addElement( 7 );
177         double mean = new DescriptiveStatistic().mean(sortedData);
178         assertTrue( "Mean is not xx but " + mean, mean == 3.0 );
179     }
180     
181     public void testMeanEmpytyIntVector(){
182         IntVector sortedData = new IntVector ( );
183         double mean = new DescriptiveStatistic().mean(sortedData);
184         assertTrue( "Mean is not xx but " + mean, mean == 0.0 );
185     }
186     public void testMeanIntVector2(){
187         IntVector sortedData = new IntVector ( );
188         sortedData.addElement( 1 );
189         sortedData.addElement( 1 );
190         sortedData.addElement( 1 );
191         sortedData.addElement( 3 );
192         sortedData.addElement( 3 );
193         sortedData.addElement( 5 );
194         sortedData.addElement( 5 );
195         sortedData.addElement( 7 );
196         sortedData.addElement( 1000 );
197         double mean = new DescriptiveStatistic().mean(sortedData);
198         assertTrue( "Mean is not xx but " + mean, mean == 114.0 );
199
200     }
201 }
202
203
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