Steps.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2007 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/More/MEAL/MEAL/Steps.h
 
#ifndef __Steps_H
#define __Steps_H
 
#include "MEAL/Univariate.h"
#include "MEAL/Scalar.h"
#include "MEAL/Parameters.h"
 
namespace MEAL {
 
 
  class Steps : public Univariate<Scalar> {
 
  public:
 
    Steps ();
 
    Steps (const Steps&);
 
    Steps& operator = (const Steps&);
 
    Steps* clone () const;
 
    void set_param_name_prefix (const std::string&);
 
    void add_step (double x);
 
    void set_step (unsigned istep, double x);
 
    void remove_step (unsigned istep);
 
    double get_step (unsigned istep) const;
 
    unsigned get_nstep () const;
 
    void set_abscissa (double value);
 
    unsigned get_step () const;
 
    // ///////////////////////////////////////////////////////////////////
    //
    // Function implementation
    //
    // ///////////////////////////////////////////////////////////////////
 
    std::string get_name () const;
 
  protected:
 
    void calculate (double& x, std::vector<double>* grad=0);
 
  private:
 
    Parameters parameters;
 
    std::vector<double> step;
 
    int current_step;
 
    std::string param_name_prefix;
 
  };
 
}
 
#endif