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 : 2002-10-13 00022 ** Authors : 00023 ** Marc Wathelet 00024 ** Marc Wathelet (ULg, Liège, Belgium) 00025 ** Marc Wathelet (LGIT, Grenoble, France) 00026 ** 00027 ***************************************************************************/ 00028 00029 #ifndef STATIONARITY_H 00030 #define STATIONARITY_H 00031 00032 #include "QGpCoreToolsDLLExport.h" 00033 00034 namespace QGpCoreTools { 00035 00036 class QGPCORETOOLS_EXPORT Stationarity 00037 { 00038 public: 00039 Stationarity(int queueLength,double ratio=0.001); 00040 ~Stationarity(); 00041 00042 void add(double newval); 00043 bool relativeAtEnd(); 00044 bool absoluteAtEnd(); 00045 int nextIndex() {if(_currentI==_queueLength-1) _currentI=-1; return ++_currentI;} 00046 int oldestIndex() {if(_currentI==_queueLength-1) return 0; return _currentI+1;} 00047 double mean() {return _mean;} 00048 double maxErr() {return _maxdelta;} 00049 double count() {return _count;} 00050 private: 00051 int _queueLength; 00052 double _mean; 00053 int _currentI; 00054 double * _values; 00055 int _count; 00056 int _imax; 00057 double _maxdelta; 00058 double _ratio; 00059 }; 00060 00061 } // namespace QGpCoreTools 00062 00063 #endif // STATIONARITY_H
