DinverCore/PdfCurve.h
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00001 /***************************************************************************
00002 **
00003 **  This file is part of DinverCore.
00004 **
00005 **  This file may be distributed and/or modified under the terms of the
00006 **  GNU General Public License version 2 or 3 as published by the Free
00007 **  Software Foundation and appearing in the file LICENSE.GPL included
00008 **  in the packaging of this file.
00009 **
00010 **  This file is distributed in the hope that it will be useful, but WITHOUT
00011 **  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012 **  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
00013 **  more details.
00014 **
00015 **  You should have received a copy of the GNU General Public License
00016 **  along with this program. If not, see <http://www.gnu.org/licenses/>.
00017 **
00018 **  See http://www.geopsy.org for more information.
00019 **
00020 **  Created : 2007-04-11
00021 **  Authors:
00022 **    Marc Wathelet
00023 **    Marc Wathelet (LGIT, Grenoble, France)
00024 **
00025 ***************************************************************************/
00026 
00027 #ifndef PDFCURVE_H
00028 #define PDFCURVE_H
00029 
00030 #include <QGpCoreTools.h>
00031 #include "UniqueRandom.h"
00032 #include "ModelSet.h"
00033 #include "DinverCoreDLLExport.h"
00034 
00035 namespace DinverCore {
00036 
00037 class Parameter;
00038 
00039 class DINVERCORE_EXPORT PdfPoint
00040 {
00041 public:
00042   PdfPoint() {_x=0.0; _cell=-1;}
00043   PdfPoint(double x, int cell) {_x=x; _cell=cell;}
00044 
00045   double x() const {return _x;}
00046   int cell() const {return _cell;}
00047   inline double probability(const ModelSet& models) const;
00048 
00049   static void setDegreesOfFreedom(double dof) {_degreesOfFreedom=dof;}
00050 private:
00051   double _x;
00052   int _cell;
00053   static double _degreesOfFreedom;
00054 };
00055 
00056 class DINVERCORE_EXPORT PdfCurve : public Curve<PdfPoint>
00057 {
00058 public:
00059   double randomValue(UniqueRandom& generator, const ModelSet& models, int& cellIndex);
00060   void toStream(QTextStream& s, const ModelSet& models);
00061   void printCumulative(const ModelSet& models, const Parameter& p);
00062 };
00063 
00064 inline double PdfPoint::probability(const ModelSet& models) const
00065 {
00066   return exp(-0.5*_degreesOfFreedom*models.misfit(_cell)[0]);
00067   //return models.misfit(_cell);
00068 }
00069 
00070 } // namespace DinverCore
00071 
00072 #endif // PDFCURVE_H
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