BCMTFComparisonTool Class Reference

A helper class for BCMTFAnalysisFacility storing information. More...

#include <BCMTFComparisonTool.h>

Public Member Functions
Constructors and destructors
	BCMTFComparisonTool (const char *name)
	~BCMTFComparisonTool ()
Member functions (get)
std::string	GetName ()
int	GetNContributions ()
Member functions (miscellaneous methods)
void	AddContribution (const char *name, TH1D hist)
void	AddContribution (const char *name, double centralvalue, double uncertainty)
void	DrawOverview ()
Member functions (output methods)
void	PrintHistograms (const char *filename)
void	PrintOverview (const char *filename)

Private Attributes
std::string	fName
std::vector< std::string >	fNameContainer
std::vector< TH1D * >	fHistogramContainer
std::vector< double >	fCentralValueContainer
std::vector< double >	fUncertaintyContainer

Detailed Description

A helper class for BCMTFAnalysisFacility storing information.

Author

Daniel Kollar

Kevin Kröninger

Version

1.1

Date

06.2012 This is a helper class for BCMTFAnalysisFacility storing information.

Definition at line 29 of file BCMTFComparisonTool.h.

Constructor & Destructor Documentation

BCMTFComparisonTool::BCMTFComparisonTool

(

const char *

name)

The default constructor.

Parameters

name	The name of the class.

Definition at line 22 of file BCMTFComparisonTool.cxx.

{
   fName = name;
}

BCMTFComparisonTool::~BCMTFComparisonTool

(

)

The defaul destructor.

Definition at line 28 of file BCMTFComparisonTool.cxx.

{
   for (int i = 0; i < GetNContributions(); ++i) {
      if (fHistogramContainer.at(i))
         delete fHistogramContainer.at(i);
   }
}

Member Function Documentation

void BCMTFComparisonTool::AddContribution	(	const char *	name,
		TH1D	hist
	)

Add a constribution.

Parameters

name	The name of the contribution.
hist	The histogram.

Definition at line 37 of file BCMTFComparisonTool.cxx.

{
   // add name to container
   fNameContainer.push_back(name);

   // add histogram to container
   fHistogramContainer.push_back(new TH1D(hist));

   // add central value to container
   fCentralValueContainer.push_back(hist.GetMean());

   // add uncertainty to container
   fUncertaintyContainer.push_back(hist.GetRMS());
}

void BCMTFComparisonTool::AddContribution	(	const char *	name,
		double	centralvalue,
		double	uncertainty
	)

Add a constribution.

Parameters

name	The name of the contribution.
centralvalue	The central value.
uncertainty	The uncertainty.

Definition at line 53 of file BCMTFComparisonTool.cxx.

{
   // add name to container
   fNameContainer.push_back(name);

   // add 0 to container
   fHistogramContainer.push_back(0);

   // add central value to container
   fCentralValueContainer.push_back(centralvalue);

   // add uncertainty to container
   fUncertaintyContainer.push_back(uncertainty);
}

void BCMTFComparisonTool::DrawOverview

(

)

Draw an overview.

Definition at line 105 of file BCMTFComparisonTool.cxx.

{
   // get number of contributions
   int ncontributions = GetNContributions();

   // create graph
   TGraphAsymmErrors * graph_contributions = new TGraphAsymmErrors(ncontributions);
   graph_contributions->SetMarkerStyle(20);
   graph_contributions->SetMarkerSize(1);

   // coordinate system
   double xmin = 0.0;
   double xmax = 0.0;
   double xwidth = 0.0;
   double ymin = -0.5;
   double ymax = double(ncontributions)-0.5;

   // ---- fill the graph ---- //

   // loop over all contributions
   for (int i = 0; i < ncontributions; ++i) {

      // get summary information
      double centralvalue = fCentralValueContainer.at(i);
      double uncertainty  = fUncertaintyContainer.at(i);

      // update coordinate system
      if ((centralvalue-uncertainty) < xmin || i == 0)
         xmin = centralvalue-uncertainty;
      if ((centralvalue+uncertainty) > xmax || i == 0)
         xmax = centralvalue+uncertainty;
      xwidth = xmax - xmin;

      // set point and error
      graph_contributions->SetPoint(i, centralvalue, double(ncontributions-i-1));
      graph_contributions->SetPointError(i, uncertainty, uncertainty, 0, 0);
   }

   // ---- do the plotting ---- //

   // create histogram for axes
   TH2D * hist_axes = new TH2D("", Form(";%s;", GetName().c_str()), 1, xmin - 0.25 *xwidth, xmax + 1.75 * xwidth, ncontributions, ymin, ymax);
   hist_axes->SetStats(kFALSE);
   hist_axes->GetYaxis()->SetNdivisions(0);
   hist_axes->GetYaxis()->SetTitleOffset(1.0);

   // create latex
   TLatex * latex = new TLatex();
   latex->SetTextSize(0.04);
   if (ncontributions>=10)
      latex->SetTextSize(0.02);
   latex->SetTextAlign(12);

   // draw
   hist_axes->Draw();
   graph_contributions->Draw("SAMEPZ");

   // loop over all contributions and draw labels
   for (int i = 0; i < ncontributions; ++i) {
      latex->DrawLatex(xmax + 0.25 *xwidth, double(ncontributions-i-1), fNameContainer.at(i).c_str());
   }
   hist_axes->Draw("SAMEAXIS");

   // todo: delete objects properly
}

std::string BCMTFComparisonTool::GetName ( )

inline

Returns

The name of the class.

Definition at line 52 of file BCMTFComparisonTool.h.

        { return fName; };

int BCMTFComparisonTool::GetNContributions ( )

inline

Returns

The number of contributions.

Definition at line 57 of file BCMTFComparisonTool.h.

        { return (int) fHistogramContainer.size(); };

void BCMTFComparisonTool::PrintHistograms

(

const char *

filename)

Print all histograms to a file.

Parameters

filename

The name of the file.

Definition at line 69 of file BCMTFComparisonTool.cxx.

{
   // get number of histograms
   int nhistograms = (int) fHistogramContainer.size();

   // create canvas
   TCanvas * c1 = new TCanvas();
   c1->cd();

   // loop over all histograms
   for (int i = 0; i < nhistograms; ++i) {
      // get histogram
      TH1D * hist = fHistogramContainer.at(i);

      // set color
      hist->SetLineColor(2+i);

      // draw histogram
      if (i == 0) {
         hist->Draw("HIST");
         std::cout << " here as well." << std::endl;
      }
      else {
         hist->Draw("SAMEHIST");
         std::cout << " here as well 2." << std::endl;
      }
   }

   // print canvas
   c1->Print(filename);

   // free memory
   delete c1;
}

void BCMTFComparisonTool::PrintOverview

(

const char *

filename)

Print an overview to a file.

Parameters

filename

The name of the file.

Definition at line 172 of file BCMTFComparisonTool.cxx.

{
   // create canvas
   TCanvas * c1 = new TCanvas();
   c1->cd();

   // draw the overview
   DrawOverview();

   // print to file
   c1->Print(filename);
}

Member Data Documentation

std::vector<double> BCMTFComparisonTool::fCentralValueContainer

private

A container of central values.

Definition at line 113 of file BCMTFComparisonTool.h.

std::vector<TH1D *> BCMTFComparisonTool::fHistogramContainer

private

A container of TH1D histograms.

Definition at line 109 of file BCMTFComparisonTool.h.

std::string BCMTFComparisonTool::fName

private

The name of the class.

Definition at line 101 of file BCMTFComparisonTool.h.

std::vector<std::string> BCMTFComparisonTool::fNameContainer

private

The names of the contributions.

Definition at line 105 of file BCMTFComparisonTool.h.

std::vector<double> BCMTFComparisonTool::fUncertaintyContainer

private

A container of uncertainties.

Definition at line 117 of file BCMTFComparisonTool.h.

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

• BCMTFComparisonTool.h
• BCMTFComparisonTool.cxx