DirectPerturbationSampler.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 "Sampler.h"

class DirectPerturbationSampler : public Sampler
{
public:
  static InputParameters validParams();

  DirectPerturbationSampler(const InputParameters & parameters);

  const MooseEnum & perturbationMethod() const { return _perturbation_method; }

  Real getAbsoluteInterval(const Real param_index) const;

  Real getRelativeInterval(const Real param_index) const;

  Real getNominalValue(const Real param_index) const;

protected:
  virtual Real computeSample(dof_id_type row_index, dof_id_type col_index) override;

private:
  const std::vector<Real> _nominal_values;

  const std::vector<Real> _relative_intervals;

  const MooseEnum _perturbation_method;

  std::vector<std::vector<Real>> _parameter_vectors;

  std::vector<Real> _absolute_intervals;
};