|
Commons Math example source code file (WeightedMeasurementTest.java)
The Commons Math WeightedMeasurementTest.java source code/* * 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.commons.math.estimation; import org.apache.commons.math.estimation.EstimatedParameter; import org.apache.commons.math.estimation.WeightedMeasurement; import junit.framework.*; @Deprecated public class WeightedMeasurementTest extends TestCase { public WeightedMeasurementTest(String name) { super(name); p1 = null; p2 = null; } public void testConstruction() { WeightedMeasurement m = new MyMeasurement(3.0, theoretical() + 0.1, this); checkValue(m.getWeight(), 3.0); checkValue(m.getMeasuredValue(), theoretical() + 0.1); } public void testIgnored() { WeightedMeasurement m = new MyMeasurement(3.0, theoretical() + 0.1, this); assertTrue(!m.isIgnored()); m.setIgnored(true); assertTrue(m.isIgnored()); m.setIgnored(false); assertTrue(!m.isIgnored()); } public void testTheory() { WeightedMeasurement m = new MyMeasurement(3.0, theoretical() + 0.1, this); checkValue(m.getTheoreticalValue(), theoretical()); checkValue(m.getResidual(), 0.1); double oldP1 = p1.getEstimate(); p1.setEstimate(oldP1 + m.getResidual() / m.getPartial(p1)); checkValue(m.getResidual(), 0.0); p1.setEstimate(oldP1); checkValue(m.getResidual(), 0.1); double oldP2 = p2.getEstimate(); p2.setEstimate(oldP2 + m.getResidual() / m.getPartial(p2)); checkValue(m.getResidual(), 0.0); p2.setEstimate(oldP2); checkValue(m.getResidual(), 0.1); } @Override public void setUp() { p1 = new EstimatedParameter("p1", 1.0); p2 = new EstimatedParameter("p2", 2.0); } @Override public void tearDown() { p1 = null; p2 = null; } private void checkValue(double value, double expected) { assertTrue(Math.abs(value - expected) < 1.0e-10); } private double theoretical() { return 3 * p1.getEstimate() - p2.getEstimate(); } private double partial(EstimatedParameter p) { if (p == p1) { return 3.0; } else if (p == p2) { return -1.0; } else { return 0.0; } } private static class MyMeasurement extends WeightedMeasurement { public MyMeasurement(double weight, double measuredValue, WeightedMeasurementTest testInstance) { super(weight, measuredValue); this.testInstance = testInstance; } @Override public double getTheoreticalValue() { return testInstance.theoretical(); } @Override public double getPartial(EstimatedParameter p) { return testInstance.partial(p); } private transient WeightedMeasurementTest testInstance; private static final long serialVersionUID = -246712922500792332L; } private EstimatedParameter p1; private EstimatedParameter p2; } Other Commons Math examples (source code examples)Here is a short list of links related to this Commons Math WeightedMeasurementTest.java source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.