[91] | 1 | //#--------------------------------------------------------------------------- |
---|
[890] | 2 | //# Fitter.h: A Fitter class for spectra |
---|
[91] | 3 | //#--------------------------------------------------------------------------- |
---|
| 4 | //# Copyright (C) 2004 |
---|
[125] | 5 | //# ATNF |
---|
[91] | 6 | //# |
---|
| 7 | //# This program is free software; you can redistribute it and/or modify it |
---|
| 8 | //# under the terms of the GNU General Public License as published by the Free |
---|
| 9 | //# Software Foundation; either version 2 of the License, or (at your option) |
---|
| 10 | //# any later version. |
---|
| 11 | //# |
---|
| 12 | //# This program is distributed in the hope that it will be useful, but |
---|
| 13 | //# WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 14 | //# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
---|
| 15 | //# Public License for more details. |
---|
| 16 | //# |
---|
| 17 | //# You should have received a copy of the GNU General Public License along |
---|
| 18 | //# with this program; if not, write to the Free Software Foundation, Inc., |
---|
| 19 | //# 675 Massachusetts Ave, Cambridge, MA 02139, USA. |
---|
| 20 | //# |
---|
| 21 | //# Correspondence concerning this software should be addressed as follows: |
---|
| 22 | //# Internet email: Malte.Marquarding@csiro.au |
---|
| 23 | //# Postal address: Malte Marquarding, |
---|
| 24 | //# Australia Telescope National Facility, |
---|
| 25 | //# P.O. Box 76, |
---|
| 26 | //# Epping, NSW, 2121, |
---|
| 27 | //# AUSTRALIA |
---|
| 28 | //# |
---|
[1391] | 29 | //# $Id: STFitter.h 2666 2012-10-15 04:52:38Z MalteMarquarding $ |
---|
[91] | 30 | //#--------------------------------------------------------------------------- |
---|
[1028] | 31 | #ifndef STFITTER_H |
---|
| 32 | #define STFITTER_H |
---|
[91] | 33 | |
---|
| 34 | #include <string> |
---|
| 35 | #include <vector> |
---|
| 36 | |
---|
| 37 | #include <casa/Arrays/Vector.h> |
---|
| 38 | #include <casa/Containers/Block.h> |
---|
| 39 | #include <scimath/Functionals/Function.h> |
---|
| 40 | #include <scimath/Functionals/CompoundFunction.h> |
---|
[2666] | 41 | #include <scimath/Fitting/GenericL2Fit.h> |
---|
[91] | 42 | |
---|
[2666] | 43 | |
---|
[1932] | 44 | #include "STFitEntry.h" |
---|
| 45 | |
---|
[2666] | 46 | |
---|
[91] | 47 | namespace asap { |
---|
| 48 | |
---|
[890] | 49 | class Fitter { |
---|
[91] | 50 | public: |
---|
[890] | 51 | Fitter(); |
---|
| 52 | virtual ~Fitter(); |
---|
[517] | 53 | // allowed "gauss" and "poly". ncomp is either numvber of gaussions |
---|
| 54 | // or order of the polynomial |
---|
| 55 | bool setExpression(const std::string& expr, int ncomp=1); |
---|
| 56 | bool setData(std::vector<float> absc, std::vector<float> spec, |
---|
| 57 | std::vector<bool> mask); |
---|
| 58 | bool setParameters(std::vector<float> params); |
---|
| 59 | bool setFixedParameters(std::vector<bool> fixed); |
---|
[2666] | 60 | void addConstraint(const std::vector<float>& constraint); |
---|
[1028] | 61 | |
---|
[517] | 62 | std::vector<float> getResidual() const; |
---|
| 63 | std::vector<float> getFit() const; |
---|
| 64 | std::vector<float> getParameters() const; |
---|
| 65 | std::vector<bool> getFixedParameters() const; |
---|
[1028] | 66 | |
---|
[517] | 67 | std::vector<float> getEstimate() const; |
---|
| 68 | std::vector<float> getErrors() const; |
---|
| 69 | float getChisquared() const; |
---|
| 70 | void reset(); |
---|
| 71 | bool fit(); |
---|
[1391] | 72 | // Fit via linear method |
---|
| 73 | bool lfit(); |
---|
[517] | 74 | bool computeEstimate(); |
---|
[1028] | 75 | |
---|
[517] | 76 | std::vector<float> evaluate(int whichComp) const; |
---|
[1932] | 77 | |
---|
| 78 | STFitEntry getFitEntry() const; |
---|
| 79 | |
---|
[91] | 80 | private: |
---|
[517] | 81 | void clear(); |
---|
[2666] | 82 | void applyConstraints(casa::GenericL2Fit<casa::Float>& fitter); |
---|
[517] | 83 | casa::Vector<casa::Float> x_; |
---|
| 84 | casa::Vector<casa::Float> y_; |
---|
| 85 | casa::Vector<casa::Bool> m_; |
---|
| 86 | casa::PtrBlock<casa::Function<casa::Float>* > funcs_; |
---|
[1932] | 87 | std::vector<std::string> funcnames_; |
---|
| 88 | std::vector<int> funccomponents_; |
---|
| 89 | |
---|
[517] | 90 | //Bool estimateSet_; |
---|
| 91 | casa::Float chisquared_; |
---|
| 92 | casa::Vector<casa::Float> parameters_; |
---|
| 93 | casa::Vector<casa::Bool> fixedpar_; |
---|
[2666] | 94 | std::vector<std::vector<float> > constraints_; |
---|
[1028] | 95 | |
---|
[517] | 96 | casa::Vector<casa::Float> error_; |
---|
| 97 | casa::Vector<casa::Float> thefit_; |
---|
| 98 | casa::Vector<casa::Float> residual_; |
---|
| 99 | casa::Vector<casa::Float> estimate_; |
---|
[91] | 100 | }; |
---|
| 101 | |
---|
| 102 | } // namespace |
---|
| 103 | |
---|
| 104 | #endif |
---|