GumbelMaxLikelihoodFitter.h

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// Copyright (c) 2002-present, OpenMS Inc. -- EKU Tuebingen, ETH Zurich, and FU Berlin
// SPDX-License-Identifier: BSD-3-Clause
//
// --------------------------------------------------------------------------
// $Maintainer: Julianus Pfeuffer $
// $Authors: Julianus Pfeuffer $
// --------------------------------------------------------------------------
//
#pragma once
 
#include <OpenMS/DATASTRUCTURES/StringUtils.h>
#include <vector>
 
 
namespace OpenMS
{
  namespace Math
  {
    class OPENMS_DLLAPI GumbelMaxLikelihoodFitter
    {
 
public:
 
      struct OPENMS_DLLAPI GumbelDistributionFitResult
      {
        GumbelDistributionFitResult(double local_a, double local_b) :
          a(local_a),
          b(local_b)
        {
        }
 
        double a;
        double b;
 
        double log_eval_no_normalize(double x) const;
 
        double eval(double x) const;
 
        double mode() const;
      };
 
      GumbelMaxLikelihoodFitter();
      GumbelMaxLikelihoodFitter(GumbelDistributionFitResult init);
      virtual ~GumbelMaxLikelihoodFitter();
 
      void setInitialParameters(const GumbelDistributionFitResult & result);
 
      GumbelDistributionFitResult fitWeighted(const std::vector<double> & x, const std::vector<double> & w);
 
protected:
 
      GumbelDistributionFitResult init_param_;
 
private:
      GumbelMaxLikelihoodFitter(const GumbelMaxLikelihoodFitter & rhs);
      GumbelMaxLikelihoodFitter & operator=(const GumbelMaxLikelihoodFitter & rhs);
    };
  }
}