ModPieceCostFunction.h

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#ifndef MODPIECECOSTFUNCTION_H_
#define MODPIECECOSTFUNCTION_H_
 
#include "MUQ/Optimization/CostFunction.h"
 
namespace muq {
  namespace Optimization {
    class ModPieceCostFunction : public CostFunction {
    public:
 
      ModPieceCostFunction(std::shared_ptr<muq::Modeling::ModPiece> cost, double scaleIn=1.0);
 
      virtual ~ModPieceCostFunction() = default;
 
      virtual double Cost() override;
 
      virtual Eigen::VectorXd Gradient() override;
 
      // Apply the Hessian to a vector
      virtual Eigen::VectorXd ApplyHessian(Eigen::VectorXd const& vec) override;
 
    private:
         
      // The muq::Modeling::ModPiece that holds the cost
      std::shared_ptr<muq::Modeling::ModPiece> cost;
 
      const double scale;
    };
  } // namespace Optimization
} // namespace muq
 
#endif