| 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 1388 2007-07-26 16:02:13Z TakTsutsumi $
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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 | namespace asap {
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| 43 |
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| 44 | class Fitter {
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| 45 | public:
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| 46 | Fitter();
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| 47 | virtual ~Fitter();
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| 48 | // allowed "gauss" and "poly". ncomp is either numvber of gaussions
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| 49 | // or order of the polynomial
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| 50 | bool setExpression(const std::string& expr, int ncomp=1);
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| 51 | bool setData(std::vector<float> absc, std::vector<float> spec,
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| 52 | std::vector<bool> mask);
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| 53 | bool setParameters(std::vector<float> params);
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| 54 | bool setFixedParameters(std::vector<bool> fixed);
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| 55 |
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| 56 | std::vector<float> getResidual() const;
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| 57 | std::vector<float> getFit() const;
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| 58 | std::vector<float> getParameters() const;
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| 59 | std::vector<bool> getFixedParameters() const;
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| 60 |
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| 61 | std::vector<float> getEstimate() const;
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| 62 | std::vector<float> getErrors() const;
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| 63 | float getChisquared() const;
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| 64 | void reset();
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| 65 | bool fit();
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| 66 | // Fit via linear method
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| 67 | bool lfit();
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| 68 | bool computeEstimate();
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| 69 |
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| 70 | std::vector<float> evaluate(int whichComp) const;
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| 71 | private:
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| 72 | void clear();
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| 73 | casa::Vector<casa::Float> x_;
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| 74 | casa::Vector<casa::Float> y_;
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| 75 | casa::Vector<casa::Bool> m_;
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| 76 | casa::PtrBlock<casa::Function<casa::Float>* > funcs_;
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| 77 | //Bool estimateSet_;
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| 78 | casa::Float chisquared_;
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| 79 | casa::Vector<casa::Float> parameters_;
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| 80 | casa::Vector<casa::Bool> fixedpar_;
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| 81 |
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| 82 | casa::Vector<casa::Float> error_;
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| 83 | casa::Vector<casa::Float> thefit_;
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| 84 | casa::Vector<casa::Float> residual_;
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| 85 | casa::Vector<casa::Float> estimate_;
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| 86 | };
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| 87 |
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| 88 | } // namespace
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| 89 |
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| 90 | #endif
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