/*
* Encog(tm) Core Unit Tests v3.0 - Java Version
* http://www.heatonresearch.com/encog/
* http://code.google.com/p/encog-java/
* Copyright 2008-2011 Heaton Research, Inc.
*
* 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
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* See the License for the specific language governing permissions and
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package org.encog.neural.networks.training.competitive.neighborhood;
import junit.framework.TestCase;
import org.encog.mathutil.rbf.GaussianFunction;
import org.encog.mathutil.rbf.RadialBasisFunction;
import org.encog.neural.som.training.basic.neighborhood.NeighborhoodBubble;
import org.encog.neural.som.training.basic.neighborhood.NeighborhoodRBF1D;
import org.encog.neural.som.training.basic.neighborhood.NeighborhoodSingle;
import org.junit.Assert;
public class TestNeighborhood extends TestCase {
public void testBubble() throws Throwable
{
NeighborhoodBubble bubble = new NeighborhoodBubble(2);
Assert.assertEquals(0.0, bubble.function(5, 0),0.1);
Assert.assertEquals(1.0, bubble.function(5, 4),0.1);
Assert.assertEquals(1.0, bubble.function(5, 5),0.1);
}
public void testSingle() throws Throwable {
NeighborhoodSingle bubble = new NeighborhoodSingle();
Assert.assertEquals(0.0, bubble.function(5, 0),0.1);
Assert.assertEquals(1.0, bubble.function(5, 5),0.1);
}
public void testGaussian() throws Throwable {
RadialBasisFunction radial = new GaussianFunction(0.0,1.0,1.0);
NeighborhoodRBF1D bubble = new NeighborhoodRBF1D(radial);
Assert.assertEquals(0.0, bubble.function(5, 0),0.1);
Assert.assertEquals(1.0, bubble.function(5, 5),0.1);
Assert.assertEquals(0.6, bubble.function(5, 4),0.1);
}
}