1 | //#--------------------------------------------------------------------------- |
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2 | //# Fitter.h: A Fitter class for spectra |
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3 | //#--------------------------------------------------------------------------- |
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4 | //# Copyright (C) 2004 |
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5 | //# ATNF |
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6 | //# |
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7 | //# This program is free software; you can redistribute it and/or modify it |
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8 | //# under the terms of the GNU General Public License as published by the Free |
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9 | //# Software Foundation; either version 2 of the License, or (at your option) |
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10 | //# any later version. |
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11 | //# |
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12 | //# This program is distributed in the hope that it will be useful, but |
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13 | //# WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | //# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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15 | //# Public License for more details. |
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16 | //# |
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17 | //# You should have received a copy of the GNU General Public License along |
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18 | //# with this program; if not, write to the Free Software Foundation, Inc., |
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19 | //# 675 Massachusetts Ave, Cambridge, MA 02139, USA. |
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20 | //# |
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21 | //# Correspondence concerning this software should be addressed as follows: |
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22 | //# Internet email: Malte.Marquarding@csiro.au |
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23 | //# Postal address: Malte Marquarding, |
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24 | //# Australia Telescope National Facility, |
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25 | //# P.O. Box 76, |
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26 | //# Epping, NSW, 2121, |
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27 | //# AUSTRALIA |
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28 | //# |
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29 | //# $Id: STFitter.h 1932 2010-09-17 08:35:58Z WataruKawasaki $ |
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30 | //#--------------------------------------------------------------------------- |
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31 | #ifndef STFITTER_H |
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32 | #define STFITTER_H |
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33 | |
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34 | #include <string> |
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35 | #include <vector> |
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36 | |
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37 | #include <casa/Arrays/Vector.h> |
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38 | #include <casa/Containers/Block.h> |
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39 | #include <scimath/Functionals/Function.h> |
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40 | #include <scimath/Functionals/CompoundFunction.h> |
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41 | |
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42 | #include "STFitEntry.h" |
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43 | |
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44 | namespace asap { |
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45 | |
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46 | class Fitter { |
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47 | public: |
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48 | Fitter(); |
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49 | virtual ~Fitter(); |
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50 | // allowed "gauss" and "poly". ncomp is either numvber of gaussions |
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51 | // or order of the polynomial |
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52 | bool setExpression(const std::string& expr, int ncomp=1); |
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53 | bool setData(std::vector<float> absc, std::vector<float> spec, |
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54 | std::vector<bool> mask); |
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55 | bool setParameters(std::vector<float> params); |
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56 | bool setFixedParameters(std::vector<bool> fixed); |
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57 | |
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58 | std::vector<float> getResidual() const; |
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59 | std::vector<float> getFit() const; |
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60 | std::vector<float> getParameters() const; |
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61 | std::vector<bool> getFixedParameters() const; |
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62 | |
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63 | std::vector<float> getEstimate() const; |
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64 | std::vector<float> getErrors() const; |
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65 | float getChisquared() const; |
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66 | void reset(); |
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67 | bool fit(); |
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68 | // Fit via linear method |
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69 | bool lfit(); |
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70 | bool computeEstimate(); |
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71 | |
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72 | std::vector<float> evaluate(int whichComp) const; |
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73 | |
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74 | STFitEntry getFitEntry() const; |
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75 | |
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76 | private: |
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77 | void clear(); |
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78 | casa::Vector<casa::Float> x_; |
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79 | casa::Vector<casa::Float> y_; |
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80 | casa::Vector<casa::Bool> m_; |
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81 | casa::PtrBlock<casa::Function<casa::Float>* > funcs_; |
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82 | std::vector<std::string> funcnames_; |
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83 | std::vector<int> funccomponents_; |
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84 | |
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85 | //Bool estimateSet_; |
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86 | casa::Float chisquared_; |
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87 | casa::Vector<casa::Float> parameters_; |
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88 | casa::Vector<casa::Bool> fixedpar_; |
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89 | |
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90 | casa::Vector<casa::Float> error_; |
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91 | casa::Vector<casa::Float> thefit_; |
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92 | casa::Vector<casa::Float> residual_; |
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93 | casa::Vector<casa::Float> estimate_; |
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94 | }; |
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95 | |
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96 | } // namespace |
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97 | |
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98 | #endif |
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