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Commons Math example source code file (EstimationProblem.java)

This example Commons Math source code file (EstimationProblem.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Math tags/keywords

deprecated, deprecated, estimatedparameter, estimatedparameter, estimationproblem, estimationproblem, weightedmeasurement, weightedmeasurement

The Commons Math EstimationProblem.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;

/**
 * This interface represents an estimation problem.
 *
 * <p>This interface should be implemented by all real estimation
 * problems before they can be handled by the estimators through the
 * {@link Estimator#estimate Estimator.estimate} method.</p>
 *
 * <p>An estimation problem, as seen by a solver is a set of
 * parameters and a set of measurements. The parameters are adjusted
 * during the estimation through the {@link #getUnboundParameters
 * getUnboundParameters} and {@link EstimatedParameter#setEstimate
 * EstimatedParameter.setEstimate} methods. The measurements both have
 * a measured value which is generally fixed at construction and a
 * theoretical value which depends on the model and hence varies as
 * the parameters are adjusted. The purpose of the solver is to reduce
 * the residual between these values, it can retrieve the measurements
 * through the {@link #getMeasurements getMeasurements} method.</p>
 *
 * @see Estimator
 * @see WeightedMeasurement
 *
 * @version $Revision: 811786 $ $Date: 2009-09-06 05:36:08 -0400 (Sun, 06 Sep 2009) $
 * @since 1.2
 * @deprecated as of 2.0, everything in package org.apache.commons.math.estimation has
 * been deprecated and replaced by package org.apache.commons.math.optimization.general
 *
 */
@Deprecated
public interface EstimationProblem {

    /**
     * Get the measurements of an estimation problem.
     * @return measurements
     */
    WeightedMeasurement[] getMeasurements();

    /**
     * Get the unbound parameters of the problem.
     * @return unbound parameters
     */
    EstimatedParameter[] getUnboundParameters();

    /**
     * Get all the parameters of the problem.
     * @return parameters
     */
    EstimatedParameter[] getAllParameters();

}

Other Commons Math examples (source code examples)

Here is a short list of links related to this Commons Math EstimationProblem.java source code file:

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