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source: svn/trunk/routines/resolutions.C@ 11

Last change on this file since 11 was 9, checked in by Xavier Rouby, 16 years ago

first commit

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1#include "TROOT.h"
2#include "TFile.h"
3#include "TTree.h"
4#include "TCanvas.h"
5#include "TProfile.h"
6#include "TF1.h"
7#include "TGraph.h"
8
9#include "interface/FuncDef.h"
10
11void Plot()
12{
13
14 setTDRStyle();
15 gROOT->Reset();
16
17 TFile *f1 = new TFile("Smearing.root","read");
18 TTree *Analyze = (TTree*)f1->Get("Analysis");
19
20
21//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
22//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
23
24 TCanvas *c1 = new TCanvas("c1","gerrors2",100,100,600,450);
25 c1->cd();
26
27 const Int_t numBin=5;
28// double bins[numBin]={5,10,25,55,85,115,205,400};
29 double bins[5]={10,30,50,80,120};
30 TProfile *ETSoverET = new TProfile("ETSoverET","Resolution des electrons",(numBin-1),bins,-10,10);
31 Analyze->Draw("JetPTResol.SmearePT:JetPTResol.NonSmearePT>>ETSoverET","JetPTResol.NonSmearePT>1");
32
33 double rms[numBin];
34 double mean[numBin];
35 //TF1 *Gauss = new TF1("Gauss","gaus",0,4);
36
37 TCanvas *c2 = new TCanvas("c2","gerrors2",0,0,1000,650);
38 c2->cd(); int frame=0;
39 c2->Divide(6,2);
40// c2->Divide(6,2);
41
42 float x[numBin];
43 float y[numBin];
44 float finval=0;//valeur a remplir puis a fitter
45
46 for ( int i=0; i<numBin; i++) // premiÚre bin : i ==1 et pas i == 0
47 {
48 TAxis *xaxis = ETSoverET->GetXaxis();
49 float binCenter = xaxis->GetBinCenter(i+1);
50 int binMin = (int)xaxis->GetBinLowEdge(i+1);
51 int binMax = (int)xaxis->GetBinUpEdge(i+1);
52 cout<<"binMin "<<binMin<<" binMax "<<binMax<<" bin center "<<binCenter<<endl;
53 char tempMin[500];
54 sprintf(tempMin,"JetPTResol.NonSmearePT>%d",binMin);
55 string mystringMin(tempMin);
56 char tempMax[500];
57 sprintf(tempMax,"JetPTResol.NonSmearePT<%d",binMax);
58 string mystringMax(tempMax);
59 char tempName[500];
60 sprintf(tempName,"JetPTResol.SmearePT>>hETSoverET%d",i);
61 string mystringName(tempName);
62
63 c2->cd(++frame);
64 GaussValues(Analyze,tempName,rms[i],mean[i],mystringMin,mystringMax);
65 x[i]=binCenter;
66 mean[i]=ETSoverET->GetBinContent(i+1);
67 // rms[i]=ETSoverET->GetBinError(i+1);
68 finval=rms[i]/mean[i];
69 y[i]=finval;
70 cout<<"finval "<<finval<<" mean val "<<mean[i]<<" rms value "<<rms[i]<<endl;
71
72 }
73
74y[0]=0.2;
75
76 TCanvas *c3 = new TCanvas("c3","gerrors2",100,100,600,450);
77 c3->cd();
78
79 TF1 *fitfun = new TF1("user","sqrt(pow([0],2)+pow([1]/sqrt(x),2)+pow([2]/x,2))",10,500);
80
81 TGraph *gr11 = new TGraph((numBin),x,y);
82 gr11->Draw("AP");
83 gr11->GetXaxis()->SetTitle("E_{T}^{MC} [GeV]");
84 gr11->GetYaxis()->SetTitle("#sigma(E_{T}^{rec}/E_{T}^{MC})/<E_{T}^{rec}/E_{T}^{MC}>");
85
86 //fitfun->FixParameter(0,0.0541930);
87 //fitfun->FixParameter(1,0.634908);
88 gr11->Fit("user","RQ");
89 gr11->Fit("user","RQ");
90 gr11->Fit("user","RQ");
91 gr11->Fit("user","R");
92
93
94
95 delete fitfun;
96// delete Gauss;
97}
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