histogram.hpp

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00001 
00005 /* Copyright (c) 2005-2010 Taneli Kalvas. All rights reserved.
00006  *
00007  * You can redistribute this software and/or modify it under the terms
00008  * of the GNU General Public License as published by the Free Software
00009  * Foundation; either version 2 of the License, or (at your option)
00010  * any later version.
00011  * 
00012  * This library is distributed in the hope that it will be useful, but
00013  * WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00015  * General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with this library (file "COPYING" included in the package);
00019  * if not, write to the Free Software Foundation, Inc., 51 Franklin
00020  * Street, Fifth Floor, Boston, MA 02110-1301 USA
00021  * 
00022  * If you have questions about your rights to use or distribute this
00023  * software, please contact Berkeley Lab's Technology Transfer
00024  * Department at TTD@lbl.gov. Other questions, comments and bug
00025  * reports should be sent directly to the author via email at
00026  * taneli.kalvas@jyu.fi.
00027  * 
00028  * NOTICE. This software was developed under partial funding from the
00029  * U.S.  Department of Energy.  As such, the U.S. Government has been
00030  * granted for itself and others acting on its behalf a paid-up,
00031  * nonexclusive, irrevocable, worldwide license in the Software to
00032  * reproduce, prepare derivative works, and perform publicly and
00033  * display publicly.  Beginning five (5) years after the date
00034  * permission to assert copyright is obtained from the U.S. Department
00035  * of Energy, and subject to any subsequent five (5) year renewals,
00036  * the U.S. Government is granted for itself and others acting on its
00037  * behalf a paid-up, nonexclusive, irrevocable, worldwide license in
00038  * the Software to reproduce, prepare derivative works, distribute
00039  * copies to the public, perform publicly and display publicly, and to
00040  * permit others to do so.
00041  */
00042 
00043 #ifndef HISTOGRAM_HPP
00044 #define HISTOGRAM_HPP 1
00045 
00046 
00047 #include <vector>
00048 
00049 
00052 class Histogram
00053 {
00054 
00055 public:
00056 
00059     virtual ~Histogram() {}
00060 
00061 };
00062 
00063 
00066 class Histogram1D : public Histogram
00067 {
00068     int                 _n;         
00069     double              _range[2];  
00070     double              _step;      
00071     std::vector<double> _data;      
00073 public:
00074 
00077     Histogram1D( size_t n, const double range[2] );
00078 
00081     Histogram1D( size_t n, const std::vector<double> &xdata );
00082 
00085     Histogram1D( size_t n, const std::vector<double> &xdata, const std::vector<double> &wdata );
00086 
00089     virtual ~Histogram1D();
00090 
00093     size_t n( void ) const { return( _n ); }
00094 
00097     double step( void ) const { return( _step ); }
00098 
00101     double coord( size_t i ) const { return( _range[0] + i*(_range[1]-_range[0]) / (_n-1.0) ); }
00102 
00107     void accumulate( size_t i, double weight ) {
00108         _data[i] += weight;
00109     }
00110 
00120     void accumulate_linear( double x, double weight );
00121 
00124     void get_range( double range[2] ) const { 
00125         range[0] =  _range[0];
00126         range[1] =  _range[1];
00127     }
00128     
00133     void get_bin_range( double &min, double &max ) const;
00134     
00137     std::vector<double> &get_data( void ) { return( _data ); }
00138 
00141     const std::vector<double> &get_data( void ) const { return( _data ); }
00142 
00145     const double &operator()( size_t i ) const {
00146         return( _data[i] );
00147     }
00148 
00151     double &operator()( size_t i ) {
00152         return( _data[i] );
00153     }
00154 };
00155 
00156 
00159 class Histogram2D : public Histogram
00160 {
00161     int                 _n;         
00162     int                 _m;         
00163     double              _range[4];  
00164     double              _nstep;     
00165     double              _mstep;     
00166     std::vector<double> _data;      
00168 public:
00169 
00172     Histogram2D( size_t n, size_t m, const double range[4] );
00173 
00176     Histogram2D( size_t n, size_t m, 
00177                  const std::vector<double> &xdata,
00178                  const std::vector<double> &ydata );
00179 
00182     Histogram2D( size_t n, size_t m, 
00183                  const std::vector<double> &xdata,
00184                  const std::vector<double> &ydata,
00185                  const std::vector<double> &wdata );
00186 
00189     virtual ~Histogram2D();
00190 
00193     size_t n( void ) const { return( _n ); }
00194 
00197     size_t m( void ) const { return( _m ); }
00198 
00201     double nstep( void ) const { return( _nstep ); }
00202 
00205     double mstep( void ) const { return( _mstep ); }
00206 
00209     double icoord( size_t i ) const { return( _range[0] + i*(_range[2]-_range[0]) / (_n-1.0) ); }
00210 
00213     double jcoord( size_t j ) const { return( _range[1] + j*(_range[3]-_range[1]) / (_m-1.0) ); }
00214 
00219     void accumulate( size_t i, size_t j, double weight ) {
00220         _data[i+j*_n] += weight;
00221     }
00222 
00232     void accumulate_linear( double x, double y, double weight );
00233 
00236     void get_range( double range[4] ) const { 
00237         range[0] =  _range[0];
00238         range[1] =  _range[1];
00239         range[2] =  _range[2];
00240         range[3] =  _range[3];
00241     }
00242     
00247     void get_bin_range( double &min, double &max ) const;
00248     
00251     std::vector<double> &get_data( void ) { return( _data ); }
00252 
00255     const std::vector<double> &get_data( void ) const { return( _data ); }
00256 
00259     const double &operator()( size_t i, size_t j ) const {
00260         return( _data[i+j*_n] );
00261     }
00262 
00265     double &operator()( size_t i, size_t j ) {
00266         return( _data[i+j*_n] );
00267     }
00268 };
00269 
00270 
00271 #endif
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