QGpCoreTools/ProcessStatistics.h
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00001 /***************************************************************************
00002 **
00003 **  This file is part of QGpCoreTools.
00004 **
00005 **  This library is free software; you can redistribute it and/or
00006 **  modify it under the terms of the GNU Lesser General Public
00007 **  License as published by the Free Software Foundation; either
00008 **  version 2.1 of the License, or (at your option) any later version.
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 Lesser General Public
00013 **  License for more details.
00014 **
00015 **  You should have received a copy of the GNU Lesser General Public
00016 **  License along with this library; if not, write to the Free Software
00017 **  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00018 **
00019 **  See http://www.geopsy.org for more information.
00020 **
00021 **  Created : 2002-10-14
00022 **  Authors :
00023 **    Marc Wathelet
00024 **    Marc Wathelet (ULg, Liège, Belgium)
00025 **    Marc Wathelet (LGIT, Grenoble, France)
00026 **
00027 ***************************************************************************/
00028 
00029 #ifndef ProcessStatistics_H
00030 #define ProcessStatistics_H
00031 
00032 #include <math.h>
00033 
00034 #include "StatisticalValue.h"
00035 #include "QGpCoreToolsDLLExport.h"
00036 
00037 namespace QGpCoreTools {
00038 
00039 class QGPCORETOOLS_EXPORT ProcessStatistics
00040 {
00041  public:
00042   ProcessStatistics() {clear();}
00043 
00044   void add(double newval);
00045   void current(double& mean, double& stddev);
00046   double mean() {return _sumxi/_count;}
00047   double stddev();
00048   RealStatisticalValue value();
00049 
00050   void addLog(double newval);
00051   void currentLog(double& mean, double& stddev);
00052   double meanLog() {return pow(10.0, _sumxi/_count);}
00053   double stddevLog();
00054   RealStatisticalValue valueLog();
00055 
00056   void clear() {_sumxi=0.0; _sumxi2=0.0; _count=0;}
00057   int count() {return _count;}
00058  protected:
00059   double _sumxi;
00060   double _sumxi2;
00061   int _count;
00062 };
00063 
00064 } // namespace QGpCoreTools
00065 
00066 #endif // PROCESSSTATISTICS_H
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