Package org.apache.commons.math.estimation

Interface EstimationProblem

  • All Known Implementing Classes:
    SimpleEstimationProblem
    @Deprecated
public interface EstimationProblem
    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
    This interface represents an estimation problem.

    This interface should be implemented by all real estimation problems before they can be handled by the estimators through the Estimator.estimate method.

    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 getUnboundParameters and 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 getMeasurements method.

    Since:
    1.2
    Version:
    $Revision: 811786 $ $Date: 2009-09-06 11:36:08 +0200 (dim. 06 sept. 2009) $
    See Also:
    Estimator, WeightedMeasurement

    • Method Detail

      • getMeasurements

        WeightedMeasurement[] getMeasurements()
        Deprecated.
        Get the measurements of an estimation problem.
        Returns:
        measurements

      • getUnboundParameters

        EstimatedParameter[] getUnboundParameters()
        Deprecated.
        Get the unbound parameters of the problem.
        Returns:
        unbound parameters

      • getAllParameters

        EstimatedParameter[] getAllParameters()
        Deprecated.
        Get all the parameters of the problem.
        Returns:
        parameters