1 /*************************************************************************
2 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 ///////////////////////////////////////////////////////////////////////////
17 // Dielectron SignalBase //
21 Base class for signal extraction from a histogram or an array of histograms
22 The histogram is assumed to be an inv. mass spectrum,
23 the array of histograms is assumed to be an array with inv. mass histograms
24 resulting from single and mixed events, as defined in AliDielectron.cxx
28 ///////////////////////////////////////////////////////////////////////////
32 #include <TPaveText.h>
34 #include "AliDielectronSignalBase.h"
36 ClassImp(AliDielectronSignalBase)
38 AliDielectronSignalBase::AliDielectronSignalBase() :
56 // Default Constructor
60 //______________________________________________
61 AliDielectronSignalBase::AliDielectronSignalBase(const char* name, const char* title) :
83 //______________________________________________
84 AliDielectronSignalBase::~AliDielectronSignalBase()
89 if(fHistSignal) delete fHistSignal;
90 if(fHistBackground) delete fHistBackground;
93 //______________________________________________
94 TPaveText* AliDielectronSignalBase::DrawStats(Double_t x1/*=0.*/, Double_t y1/*=0.*/, Double_t x2/*=0.*/, Double_t y2/*=0.*/)
97 // Draw extracted values in a TPaveText
98 // with the corners x1,y2,x2,y2
100 if (TMath::Abs(x1)<1e-20&&TMath::Abs(x2)<1e-20){
106 TPaveText *t=new TPaveText(x1,y1,x2,y2,"brNDC");
107 t->SetFillColor(kWhite);
110 t->AddText(Form("Range : %.2f - %.2f GeV/c^{2}", fIntMin, fIntMax));
111 t->AddText(Form("Signal : %.1f #pm %.1f", fValues(0), fErrors(0)));
112 t->AddText(Form("Backgnd: %.1f #pm %.1f", fValues(1), fErrors(1)));
113 t->AddText(Form("Signif.: %.2f #pm %.2f", fValues(2), fErrors(2)));
114 t->AddText(Form("S/B : %.2f #pm %.2f", fValues(3), fErrors(3)));
116 t->AddText(Form("Mass: %.2f #pm %.2f GeV/c^{2}", fValues(4), fErrors(4)));
117 t->AddText(Form("Mass res.: %.1f #pm %.1f MeV/c^{2}", 1000*fValues(5), 1000*fErrors(5)));
124 //______________________________________________
125 void AliDielectronSignalBase::Print(Option_t */*option*/) const
128 // Print the statistics
130 printf("Signal : %.5g #pm %.5g\n",fValues(0), fErrors(0));
131 printf("Backgnd: %.5g #pm %.5g\n",fValues(1), fErrors(1));
132 printf("Signif.: %.5g #pm %.5g\n",fValues(2), fErrors(2));
133 printf("SoB : %.5g #pm %.5g\n",fValues(3), fErrors(3));
135 printf("Mass: %.5g #pm %.5g\n", fValues(4), fErrors(4));
136 printf("Mass res.: %.5g #pm %.5g\n", fValues(5), fErrors(5));