MaxentEntropy.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2016 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include "MantidAlgorithms/DllConfig.h"
#include <memory>
#include <vector>
 
namespace Mantid {
namespace Algorithms {
 
class MANTID_ALGORITHMS_DLL MaxentEntropy {
public:
  // Constructor
  MaxentEntropy() = default;
  // Destructor
  virtual ~MaxentEntropy() = default;
  // First derivative of the entropy
  virtual std::vector<double> derivative(const std::vector<double> &values, double background) = 0;
  // Second derivative of the entropy
  virtual std::vector<double> secondDerivative(const std::vector<double> &values, double background) = 0;
  // Corrects an invalid value
  virtual std::vector<double> correctValues(const std::vector<double> &value, double newValue) = 0;
};
 
using MaxentEntropy_sptr = std::shared_ptr<MaxentEntropy>;
 
} // namespace Algorithms
} // namespace Mantid