UnknowVar Struct Reference

variable with uncertainty from boot-strap replicas More...

Public Member Functions
void	add (double x)
	add value to the replicas
double	getMean ()
	Get mean value.
double	getSigma ()
	Get standard deviation.
double	getLimit (double v)
	Get quantile (v=0.5 -> median, v=0.16,v=0.84 68% confidence interval)
void	printStat (TString n)
	Print variable of name n with stat-info.
std::vector< double >	getStats ()
	Get basic stats.

Public Attributes
std::vector< double >	vars
	vector of variable values for all replicas

Detailed Description

variable with uncertainty from boot-strap replicas

Definition at line 213 of file BeamSpotStandAlone.cc.

Member Function Documentation

add()

void add ( double  x )

inline

add value to the replicas

Definition at line 215 of file BeamSpotStandAlone.cc.

getLimit()

double getLimit ( double  v )

inline

Get quantile (v=0.5 -> median, v=0.16,v=0.84 68% confidence interval)

Definition at line 239 of file BeamSpotStandAlone.cc.

    {
      B2ASSERT("Must be at least one replica", vars.size() >= 1);
      double indx = (vars.size() - 1) * v;
      sort(vars.begin(), vars.end());
      int I  = indx;
      double r = indx - I;
      return vars[I] * (1 - r) + vars[I + 1] * r;
    }

getMean()

double getMean ( )

inline

Get mean value.

Definition at line 218 of file BeamSpotStandAlone.cc.

    {
      B2ASSERT("Must be at least one replica", vars.size() >= 1);
      return accumulate(vars.begin(), vars.end(), 0.) / vars.size();
    }

getSigma()

double getSigma ( )

inline

Get standard deviation.

Definition at line 225 of file BeamSpotStandAlone.cc.

    {
      B2ASSERT("Must be at least one replica", vars.size() >= 1);
      double m = getMean();
      double s = 0;
      for (auto x : vars)
        s += pow(x - m, 2);
      if (vars.size() > 1)
        return sqrt(s / (vars.size() - 1));
      else
        return 0; //dummy unc. for single replica
    }

getStats()

std::vector< double > getStats ( )

inline

Get basic stats.

Definition at line 258 of file BeamSpotStandAlone.cc.

    {
      return {getLimit(0.50), getLimit(0.16), getLimit(1 - 0.16)};
    }

printStat()

void printStat ( TString  n )

inline

Print variable of name n with stat-info.

Definition at line 250 of file BeamSpotStandAlone.cc.

    {
      B2ASSERT("Must be at least one replica", vars.size() >= 1);
      B2INFO(n << " : " <<  getMean() << "+-" << getSigma() << " : " << getLimit(0.50) << " (" << getLimit(0.16) << " , " << getLimit(
               1 - 0.16) << " )");
    }

Member Data Documentation

vars

std::vector<double> vars

vector of variable values for all replicas

Definition at line 214 of file BeamSpotStandAlone.cc.

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

• reconstruction/calibration/BeamSpotBoostInvMass/src/BeamSpotStandAlone.cc