Main Page   Namespace List   Class Hierarchy   Alphabetical List   Compound List   File List   Compound Members   File Members  

AIDA_TupleVariableStatistics.cpp

Go to the documentation of this file.
00001 #include "AIDA_TupleVariableStatistics.h"
00002 #include <cmath>
00003 
00004 Anaphe::AIDA_Tuple_native::AIDA_TupleVariableStatistics::AIDA_TupleVariableStatistics():
00005   m_min( 0 ),
00006   m_max( 0 ),
00007   m_sumOfValues( 0 ),
00008   m_sumOfValuesSquared( 0 ),
00009   m_entries( 0 )
00010 {}
00011 
00012 
00013 bool
00014 Anaphe::AIDA_Tuple_native::AIDA_TupleVariableStatistics::setStatistics( double valueMin,
00015                                                                         double valueMax,
00016                                                                         double valueMean,
00017                                                                         double valueRms,
00018                                                                         int numberOfEntries )
00019 {
00020   m_min = valueMin;
00021   m_max = valueMax;
00022   m_sumOfValues = valueMean * numberOfEntries;
00023   m_sumOfValuesSquared = ( valueMean * valueMean - valueRms * valueRms ) * numberOfEntries;
00024   m_entries = numberOfEntries;
00025   return true;
00026 }
00027 
00028 double
00029 Anaphe::AIDA_Tuple_native::AIDA_TupleVariableStatistics::rms() const
00030 {
00031   if ( m_entries == 0 ) return 0;
00032   const double meanx = mean();
00033   return std::sqrt( std::abs( m_sumOfValuesSquared / m_entries - meanx*meanx ) );
00034 }
00035 

Generated on Tue Feb 18 17:51:19 2003 for AIDA_Tuple_native by doxygen1.2.16