void Icflux(char *infile="example.dat",char *infile2="example1.dat"){

  TCanvas *c1 = new TCanvas("c1","c1",1000,700);

  c1->SetLogx();
  c1->SetLogy();

  TGraph *gr1 = new TGraph(infile2);
  TGraph *gr2 = new TGraph(infile);
  gr1->SetLineStyle(4);
  gr2->SetLineStyle(4);
     
  
  gr1->GetHistogram()->SetTitle("Delayed GRB Emission");
  gr1->GetHistogram()->GetXaxis()->SetTitle("Photon Energy (GeV)");
  gr1->GetHistogram()->GetYaxis()->SetTitle("Flux");
  gr1->GetHistogram()->GetYaxis()->SetTitleOffset(1.2);
  gr1->SetMaximum(1e-18);
  gr1->SetMinimum(1e-36);
  
  gr1->SetLineColor(4);
  gr1->SetLineWidth(3);
  gr2->SetLineColor(2);
  gr2->SetLineWidth(3);

  char text1[100];
  char text2[100];

  sprintf(text1,"-2.5");  
  sprintf(text2,"-1.8");

  TText *t1 = new TText(1e-2,1e-20,text1);
  TText *t2 = new TText(1e-2,1e-19,text2);

  t1->SetTextSize(0.038);
  t2->SetTextSize(0.038); 
  t1->SetTextColor(kBlue);
  t2->SetTextColor(kRed);

  gr1->Draw("ALP");
  gr2->Draw("LP");
  t1->Draw();
  t2->Draw();

}