/usr/include/casacore/scimath/Fitting/LinearFit.tcc is in casacore-dev 2.2.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | //# LinearFit.cc: Class for linear least-squares fit.
//#
//# 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_LINEARFIT_TCC
#define SCIMATH_LINEARFIT_TCC
//# Includes
#include <casacore/scimath/Fitting/LinearFit.h>
#include <casacore/casa/Arrays/ArrayMath.h>
#include <casacore/scimath/Mathematics/AutoDiffIO.h>
#include <casacore/scimath/Functionals/Function.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
//# Constants
template<class T>
LinearFit<T>::LinearFit() :
GenericL2Fit<T>() {}
template<class T>
LinearFit<T>::LinearFit(const LinearFit &other) :
GenericL2Fit<T>(other) {}
template<class T>
LinearFit<T> &LinearFit<T>::operator=(const LinearFit &other) {
if (this != &other) {
GenericL2Fit<T>::operator=(other);
}
return *this;
}
template<class T>
LinearFit<T>::~LinearFit() {}
template<class T>
Bool LinearFit<T>::
fitIt(Vector<typename FunctionTraits<T>::BaseType> &sol,
const Array<typename FunctionTraits<T>::BaseType> &x,
const Vector<typename FunctionTraits<T>::BaseType> &y,
const Vector<typename FunctionTraits<T>::BaseType> *const sigma,
const Vector<Bool> *const mask) {
// Initialise fitter
sol.resize(pCount_p);
for (uInt i=0, k=0; i<pCount_p; ++i) {
sol[i] = (*ptr_derive_p)[i].value();
if (ptr_derive_p->mask(i)) sol_p[k++] = sol[i];
}
// Build normal equations
this->buildMatrix(x, y, sigma, mask);
// Build constraint equations
buildConstraint();
// Invert normal equations
solved_p = this->invert(nr_p, svd_p);
// Get solution and errors
if (solved_p) {
this->solve(condEq_p);
sol_p += condEq_p;
this->getErrors(err_p);
errors_p = True;
for (uInt i=0, k=0; i<pCount_p; i++) {
if (ptr_derive_p->mask(i)) sol[i] = sol_p[k++];
(*ptr_derive_p)[i].value() = sol[i];
}
}
return solved_p;
}
} //# NAMESPACE CASACORE - END
#endif
|