Package org.hipparchus.optim

Class BaseMultivariateOptimizer<P>

  • Type Parameters:
    P - Type of the point/value pair returned by the optimization algorithm.
    Direct Known Subclasses:
    BaseMultiStartMultivariateOptimizer, MultivariateOptimizer
    public abstract class BaseMultivariateOptimizer<P>
extends BaseOptimizer<P>
    Base class for implementing optimizers for multivariate functions. It contains the boiler-plate code for initial guess and bounds specifications. It is not a "user" class.

    • Constructor Detail

      • BaseMultivariateOptimizer

        protected BaseMultivariateOptimizer​(ConvergenceChecker<P> checker)
        Simple constructor.
        Parameters:
        checker - Convergence checker.

    • Method Detail

      • optimize

        public P optimize​(OptimizationData... optData)
        Stores data and performs the optimization.

        The list of parameters is open-ended so that sub-classes can extend it with arguments specific to their concrete implementations.

        When the method is called multiple times, instance data is overwritten only when actually present in the list of arguments: when not specified, data set in a previous call is retained (and thus is optional in subsequent calls).

        Important note: Subclasses must override BaseOptimizer.parseOptimizationData(OptimizationData[]) if they need to register their own options; but then, they must also call super.parseOptimizationData(optData) within that method.

        Overrides:
        optimize in class BaseOptimizer<P>
        Parameters:
        optData - Optimization data. In addition to those documented in BaseOptimizer, this method will register the following data:
        Returns:
        a point/value pair that satisfies the convergence criteria.

      • getStartPoint

        public double[] getStartPoint()
        Gets the initial guess.
        Returns:
        the initial guess, or null if not set.

      • getLowerBound

        public double[] getLowerBound()
        Get lower bounds.
        Returns:
        the lower bounds, or null if not set.

      • getUpperBound

        public double[] getUpperBound()
        Get upper bounds.
        Returns:
        the upper bounds, or null if not set.