GumbelMaxLikelihoodFitter.h

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// $Maintainer: Julianus Pfeuffer $
// $Authors: Julianus Pfeuffer $
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//
#pragma once

#include <OpenMS/DATASTRUCTURES/String.h>
#include <vector>


namespace OpenMS
{
  namespace Math
  {
    class OPENMS_DLLAPI GumbelMaxLikelihoodFitter
    {

public:

      struct 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;
      };

      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);
    };
  }
}