/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Copyright (C) 2002 University of Waikato
*/
package weka.filters.unsupervised.attribute;
import weka.core.Instances;
import weka.filters.AbstractFilterTest;
import weka.filters.Filter;
import junit.framework.Test;
import junit.framework.TestSuite;
/**
* Tests Normalize. Run from the command line with:<p>
* java weka.filters.unsupervised.attribute.NormalizeTest
*
* @author <a href="mailto:len@reeltwo.com">Len Trigg</a>
* @version $Revision: 1.3 $
*/
public class NormalizeTest extends AbstractFilterTest {
public NormalizeTest(String name) { super(name); }
/** Creates an example Normalize */
public Filter getFilter() {
Normalize f = new Normalize();
return f;
}
public void testTypical() {
Instances result = useFilter();
// Number of attributes and instances shouldn't change
assertEquals(m_Instances.numAttributes(), result.numAttributes());
assertEquals(m_Instances.numInstances(), result.numInstances());
// Check conversion is OK
for (int j = 0; j < result.numAttributes(); j++) {
if (result.attribute(j).isNumeric()) {
for (int i = 0; i < result.numInstances(); i++) {
if (!result.instance(i).isMissing(j)) {
assertTrue("Value should be between 0 and 1",
(result.instance(i).value(j) >= 0) &&
(result.instance(i).value(j) <= 1));
}
}
}
}
}
public static Test suite() {
return new TestSuite(NormalizeTest.class);
}
public static void main(String[] args){
junit.textui.TestRunner.run(suite());
}
}