mirror of
https://github.com/aportelli/LatAnalyze.git
synced 2024-11-10 00:45:36 +00:00
104 lines
4.0 KiB
C++
104 lines
4.0 KiB
C++
/*
|
|
* CorrelatorFitter.hpp, part of LatAnalyze 3
|
|
*
|
|
* Copyright (C) 2013 - 2020 Antonin Portelli
|
|
*
|
|
* LatAnalyze 3 is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* LatAnalyze 3 is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef Latan_CorrelatorFitter_hpp_
|
|
#define Latan_CorrelatorFitter_hpp_
|
|
|
|
#include <LatAnalyze/Global.hpp>
|
|
#include <LatAnalyze/Functional/Model.hpp>
|
|
#include <LatAnalyze/Numerical/FFT.hpp>
|
|
#include <LatAnalyze/Statistics/XYSampleData.hpp>
|
|
|
|
BEGIN_LATAN_NAMESPACE
|
|
|
|
/******************************************************************************
|
|
* Correlator types & models *
|
|
******************************************************************************/
|
|
enum class CorrelatorType {undefined, exp, cosh, sinh, linear, cst};
|
|
|
|
namespace CorrelatorModels
|
|
{
|
|
struct ModelPar
|
|
{
|
|
CorrelatorType type;
|
|
Index nState;
|
|
};
|
|
|
|
DoubleModel makeExpModel(const Index nState);
|
|
DoubleModel makeCoshModel(const Index nState, const Index nt);
|
|
DoubleModel makeSinhModel(const Index nState, const Index nt);
|
|
DoubleModel makeConstModel(void);
|
|
DoubleModel makeLinearModel(void);
|
|
ModelPar parseModel(const std::string s);
|
|
DoubleModel makeModel(const ModelPar par, const Index nt);
|
|
DVec parameterGuess(const DMatSample &corr, const ModelPar par);
|
|
};
|
|
|
|
/******************************************************************************
|
|
* Correlator utilities *
|
|
******************************************************************************/
|
|
namespace CorrelatorUtils
|
|
{
|
|
DMatSample shift(const DMatSample &c, const Index ts);
|
|
DMatSample fold(const DMatSample &c);
|
|
DMatSample fourierTransform(const DMatSample &c, FFT &fft,
|
|
const unsigned int dir = FFT::Forward);
|
|
};
|
|
|
|
/******************************************************************************
|
|
* Correlator fit utility class *
|
|
******************************************************************************/
|
|
class CorrelatorFitter
|
|
{
|
|
public:
|
|
// constructors
|
|
CorrelatorFitter(const DMatSample &corr);
|
|
CorrelatorFitter(const std::vector<DMatSample> &corr);
|
|
// destructor
|
|
virtual ~CorrelatorFitter(void) = default;
|
|
// access
|
|
XYSampleData & data(void);
|
|
void setCorrelator(const DMatSample &corr);
|
|
void setCorrelators(const std::vector<DMatSample> &corr);
|
|
const DMatSample & getCorrelator(const Index i = 0) const;
|
|
const std::vector<DMatSample> & getCorrelators(void) const;
|
|
void setModel(const DoubleModel &model, const Index i = 0);
|
|
const DoubleModel & getModel(const Index i = 0) const;
|
|
void setFitRange(const Index tMin, const Index tMax, const Index i = 0);
|
|
void setCorrelation(const bool isCorrelated, const Index i = 0,
|
|
const Index j = 0);
|
|
DMat getVarianceMatrix(void) const;
|
|
void setThinning(const Index thinning, const Index i = 0);
|
|
// fit functions
|
|
SampleFitResult fit(Minimizer &minimizer, const DVec &init);
|
|
SampleFitResult fit(std::vector<Minimizer *> &minimizer, const DVec &init);
|
|
private:
|
|
// internal function to refresh fit ranges
|
|
void refreshRanges(void);
|
|
private:
|
|
Index nt_{0};
|
|
std::unique_ptr<XYSampleData> data_;
|
|
std::vector<DoubleModel> model_;
|
|
std::vector<std::pair<Index, Index>> range_;
|
|
std::vector<Index> thinning_;
|
|
};
|
|
|
|
END_LATAN_NAMESPACE
|
|
|
|
#endif // Latan_CorrelatorFitter_hpp_
|