Package jebl.math

Interface OrthogonalHints


  • public interface OrthogonalHints
    Provides a means for giving an Orthogonal base optimiser (IE, OrthognalMinimum) hints about the function that may alow it to optimise better.
    Version:
    $Id: OrthogonalHints.java 849 2007-12-06 00:10:14Z twobeers $
    Author:
    Matthew Goode
    • Nested Class Summary

      Nested Classes 
      Modifier and Type Interface Description
      static class  OrthogonalHints.Utils  
    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      int getInternalParameterBoundaries​(int parameter, double[] storage)
      A boundary is a value of a parameter for which values lower than the boundary and values higher than the boundary are better treated as two separate functions (IE, they are only piecewise connected), and minimisation should be performed over both ranges individually (and then the true minimum taken as the minimuma of the ranges)
      OrderEnumerator getSuggestedOrdering​(OrderEnumerator defaultOrdering)
      If there is a "best" ordering to use it can be specified here, if not should return null
    • Method Detail

      • getSuggestedOrdering

        OrderEnumerator getSuggestedOrdering​(OrderEnumerator defaultOrdering)
        If there is a "best" ordering to use it can be specified here, if not should return null
        Parameters:
        defaultOrdering - The ordering suggested by the optimiser, may be null!
        Returns:
        null, or default ordering if no known best ordering
      • getInternalParameterBoundaries

        int getInternalParameterBoundaries​(int parameter,
                                           double[] storage)
        A boundary is a value of a parameter for which values lower than the boundary and values higher than the boundary are better treated as two separate functions (IE, they are only piecewise connected), and minimisation should be performed over both ranges individually (and then the true minimum taken as the minimuma of the ranges)
        Returns:
        the number of boundary locations stored in storage, or -1 if not enough room, or 0 if there are no boundaries (other than the normal parameter range)