LeastSquaresFit.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "GeneralVectorPostprocessor.h"
 
class LeastSquaresFit : public GeneralVectorPostprocessor
{
public:
  static InputParameters validParams();
 
  LeastSquaresFit(const InputParameters & parameters);
 
  virtual void initialize() override;
 
  virtual void execute() override;
 
protected:
  VectorPostprocessorName _vpp_name;
 
  const unsigned int _order;
 
  const bool _truncate_order;
 
  const std::string _x_name;
  const std::string _y_name;
 
  const VectorPostprocessorValue & _x_values;
  const VectorPostprocessorValue & _y_values;
 
  const MooseEnum _output_type;
 
  unsigned int _num_samples;
 
  const Real _x_scale;
  const Real _x_shift;
  const Real _y_scale;
  const Real _y_shift;
 
  bool _have_sample_x_min;
  bool _have_sample_x_max;
 
  Real _sample_x_min;
  Real _sample_x_max;
 
  VectorPostprocessorValue * _sample_x;
  VectorPostprocessorValue * _sample_y;
 
  VectorPostprocessorValue * _coeffs;
};