16 {
17 const TString
old_path =
"/afs/ihep.ac.cn/bes3/offline/CalibConst/dedx/6.6.3/";
18 const TString file_name = Form(
"DedxConst_%d-%d_663.root",
run_begin,
run_end);
19 const TString str_eps = Form(
"figs/gain_vs_run_%d-%d.eps",
run_begin,
run_end);
20 const TString str_eps2 = Form(
"figs/resol_vs_run_%d-%d.eps",
run_begin,
run_end);
21 const TString str_eps3 = Form(
"figs/rel_resol_vs_run_%d-%d.eps",
run_begin,
run_end);
22
23 gStyle->SetOptStat(0);
25
27 TTree *o_tree_run = (TTree*)o_file.Get("runcalib");
28 Int_t o_run, n_run;
29 Double_t o_gain, o_resol, o_wireg, n_mean, n_wireg;
30 o_tree_run->SetBranchAddress("runno", &o_run);
31 o_tree_run->SetBranchAddress("rungain", &o_gain);
32 o_tree_run->SetBranchAddress("runresol", &o_resol);
33 Int_t m_len = o_tree_run->GetEntries();
34 for(int i=0; i<m_len; i++){
35 o_tree_run->GetEntry(i);
38 if(
m_debug) cout <<
"x " <<
x[i] <<
" y " <<
y[i] << endl;
39 }
40 TGraph *gr =
new TGraph(m_len, x,
y);
41 gr->SetTitle("gain constant vs. run");
42 TCanvas *c1 = new TCanvas("c1", "c1", 10, 10, 800, 642);
43 gr->Draw("a*");
44 c1->SaveAs(str_eps);
45
46 c1->Clear();
47 for(int i=0; i<m_len; i++){
48 o_tree_run->GetEntry(i);
49 yy[i] = o_resol;
50 if(
y[i]) yyy[i] = 100.*(yy[i]/
y[i]/550.);
51 if(
m_debug) cout <<
"x " <<
x[i] <<
" y " << yy[i] << endl;
52 }
53 gr = new TGraph(m_len, x, yy);
54 gr->SetTitle("resolution vs. run");
55 gr->Draw("a*");
56 c1->SaveAs(str_eps2);
57
58 c1->Clear();
59 gr = new TGraph(m_len, x, yyy);
60 gr->SetTitle("relative resolution vs. run (%)");
61 gr->Draw("a*");
62 c1->SaveAs(str_eps3);
63
64}
1.9.6