/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.mahout.classifier.sgd;
import org.apache.mahout.examples.MahoutTestCase;
import org.apache.mahout.math.DenseVector;
import org.junit.Test;
public class ModelDissectorTest extends MahoutTestCase {
@Test
public void testCategoryOrdering() {
ModelDissector.Weight w = new ModelDissector.Weight("a", new DenseVector(new double[]{-2, -5, 5, 2, 4, 1, 0}), 4);
assertEquals(1, w.getCategory(0), 0);
assertEquals(-5, w.getWeight(0), 0);
assertEquals(2, w.getCategory(1), 0);
assertEquals(5, w.getWeight(1), 0);
assertEquals(4, w.getCategory(2), 0);
assertEquals(4, w.getWeight(2), 0);
assertEquals(0, w.getCategory(3), 0);
assertEquals(-2, w.getWeight(3), 0);
}
}