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Herwig  7.1.5
Herwig::Statistic Class Reference

The Statistic class is a simple class designed to store a variable for statistical analysis. More...

#include <Statistic.h>

Public Member Functions

 Statistic ()
 The default constructor.
 
double minimum () const
 The minimum value.
 
double maximum () const
 The maximum value.
 
void operator+= (double input)
 Operator to add another point.
 
unsigned int numberOfPoints () const
 Number of points.
 
double mean () const
 Mean.
 
double mean_stdDev () const
 Error on the mean estimate. More...
 
double mean_var () const
 Variance on the mean estimate. More...
 
double stdDev () const
 Standard Deviation.
 
double var () const
 Variance.
 
double total () const
 Total entry.
 

Private Attributes

unsigned int _n
 Number of entries.
 
double _xsum
 Sum of the values.
 
double _x2sum
 Sum of the squares of the values.
 
double _min
 The minimum value.
 
double _max
 The maximum value.
 

Detailed Description

The Statistic class is a simple class designed to store a variable for statistical analysis.

Definition at line 23 of file Statistic.h.

Member Function Documentation

◆ mean_stdDev()

double Herwig::Statistic::mean_stdDev ( ) const
inline

Error on the mean estimate.

Needed for example for Profile histograms, where this should be used to compute a chi2 or significance level of deviation to data, rather than stdDeV. This is obvious because the error on the estimate should go to zero for N -> infinity.

Definition at line 75 of file Statistic.h.

References mean_var().

Referenced by Herwig::MultiplicityInfo::simError().

◆ mean_var()

double Herwig::Statistic::mean_var ( ) const
inline

Variance on the mean estimate.

Needed for example for Profile histograms, where this should be used to compute a chi2 or significance level of deviation to data, rather than stdDeV This is obvious because the error on the estimate should go to zero for N -> infinity.

Definition at line 84 of file Statistic.h.

References _n, and var().

Referenced by mean_stdDev().


The documentation for this class was generated from the following file: