#include <iostream>
#include <fstream>
using namespace std;

void test2(char *infile="flux.10_0.01.txt") {
  gStyle->SetPalette(1,0);

  ifstream inF;

  //  float formFactor;
  double DeEvolvedLuminosity,Flux;

  cout << "Reading " << infile << endl;
  inF.open(infile);

  inF >> DeEvolvedLuminosity >> Flux;

  TGraph *gr1 = new TGraph;

  int i=0;
  while(!inF.eof()) {
    i++;
    gr1->SetPoint(i,DeEvolvedLuminosity,Flux);
    cout << DeEvolvedLuminosity << "   " << Flux << "   " << endl;
    inF >> DeEvolvedLuminosity >> Flux;
  }

  TCanvas *c1 = new TCanvas("c1","c1",800,600);
  c1->cd();
  gPad->SetLogx();
  gPad->SetLogy();

  gr1->GetHistogram()->GetXaxis()->SetRange(1,100);
  gr1->GetHistogram()->GetYaxis()->SetRange(1,100);
  gr1->GetHistogram()->Draw();
  gr1->Draw("LP");

  inF.close();
}