LinearRegressionWithoutIntercept.h

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// Copyright (c) 2002-2023, The OpenMS Team -- EKU Tuebingen, ETH Zurich, and FU Berlin
// SPDX-License-Identifier: BSD-3-Clause
//
// --------------------------------------------------------------------------
// $Maintainer: Lars Nilse $
// $Authors: Lars Nilse $
// --------------------------------------------------------------------------
 
#pragma once
 
#include <OpenMS/CONCEPT/Exception.h>
 
#include <cmath>
#include <vector>
 
namespace OpenMS
{
  namespace Math
  {
    class OPENMS_DLLAPI LinearRegressionWithoutIntercept
    {
      public:
 
      LinearRegressionWithoutIntercept();
      
      void addData(double x, double y);
      
      void addData(std::vector<double>& x, std::vector<double>& y);
      
      double getSlope() const;
 
      private:
      double sum_xx_;
      
      double sum_xy_;
      
      int n_;
      
    };
 
  } // namespace Math
} // namespace OpenMS