#include "TGraph.h"
#include "TH1F.h"
#include "TCanvas.h"

void tmp()
{
  double x1[5] = {0, 1, 2, 3, 4};
  double y1[5] = {0, 1, 2, 3, 4};
  TGraph* gra1 = new TGraph(5, x1, y1);

  double x2[5] = {0, 1, 2, 3, 4};
  double y2[5] = {0.1, -0.4, 0.7, 0.3, -0.2};
  TGraph* gra2 = new TGraph(5, x2, y2);

  TCanvas* can = new TCanvas("can", "", 800+4, 600+26);
  
  gPad->SetBottomMargin(0.3);
  TH1F* tmp = gPad->DrawFrame(0, -0.1, 5, 5);
  tmp->SetTitle(";;Y");
  tmp->GetXaxis()->SetTickLength(0);
  tmp->GetXaxis()->SetLabelSize(0);
  gra1->Draw("* same");
  
  TPad* pad = new TPad("pad", "", 0, 0, 1, 1);
  pad->SetFrameFillStyle(4000);
  pad->SetTopMargin(0.7);
  pad->Draw();
  tmp = pad->DrawFrame(0, -1.5, 5, 1.5);
  tmp->SetTitle(";X;Residual");
  tmp->GetXaxis()->SetTickLength(0.02);
  tmp->GetYaxis()->SetNdivisions(103);
  tmp->GetYaxis()->CenterTitle();
  pad->cd();
  gra2->Draw("* same");
}