/usr/include/casacore/scimath/Fitting/LinearFitSVD.h is in casacore-dev 2.2.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | //# LinearFitSVD.h: Linear fit using Singular Value Decomposition method.
//#
//# Copyright (C) 1995,1999,2000,2001,2002,2004
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library 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 Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef SCIMATH_LINEARFITSVD_H
#define SCIMATH_LINEARFITSVD_H
#include <casacore/casa/aips.h>
#include <casacore/scimath/Fitting/LinearFit.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
// <summary>
// Linear least-squares fit using Singular Value Decomposition method.
// </summary>
//
// <reviewed reviewer="wbrouw" date="2004/06/15" tests="tLinearFitSVD.cc"
// demos="">
// </reviewed>
//
// <prerequisite>
// <li> <linkto class="LinearFit">LinearFit</linkto>
// <li> <linkto module="Fitting">Fitting</linkto>
// </prerequisite>
//
// <etymology>
// Solves the linear least-squares fit problem using the singular value
// decomposition method.
// </etymology>
//
// <synopsis>
// The operation, calls and results are identical to those for the
// LinearFit class. The only difference is a collinearity default of 1e-8
// rather than 0. The actual calculations do a singular value
// decomposition solution. A method exists to get the constraints
// used in solving for missing rank.
//
// </synopsis>
//
// <motivation>
// The creation of this class was driven by the need to provide users with
// a reliable least-squares fit method. "Numerical Recipes" recommends that
// singular value decomposition (SVD) method be always used for linear
// least-squares problems, because of its robustness.
// Not everybody agrees with this.
// </motivation>
template<class T> class LinearFitSVD: public LinearFit<T>
{
public:
//# Constructors
// Create a fitter: the normal way to generate a fitter object. Necessary
// data will be deduced from the Functional provided with
// <src>setFunction()</src>
LinearFitSVD();
// Copy constructor (deep copy)
LinearFitSVD(const LinearFitSVD &other);
// Assignment (deep copy)
LinearFitSVD &operator=(const LinearFitSVD &other);
// Destructor
virtual ~LinearFitSVD();
protected:
//# Make members of parent classes known.
using LinearFit<T>::svd_p;
using LinearFit<T>::COLLINEARITY;
};
} //# NAMESPACE CASACORE - END
#ifndef CASACORE_NO_AUTO_TEMPLATES
#include <casacore/scimath/Fitting/LinearFitSVD.tcc>
#endif //# CASACORE_NO_AUTO_TEMPLATES
#endif
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