{
   gROOT->Reset();
   c1 = new TCanvas("c1","gerrors2",200,10,700,500);
   TPad *pad1 = new TPad("pad1","",0,0,1,1);
   TPad *pad2 = new TPad("pad2","",0,0,1,1);
   pad1->Draw();
   pad1->cd();

      // draw a frame to define the range
   TH1F *hr = c1->DrawFrame(-0.4,-2,1.2,12);

      // create first graph
   Int_t n1 = 10;
   Double_t x1[]  = {-0.22, 0.05, 0.25, 0.35, 0.5, 0.61,0.7,0.85,0.89,0.95};
   Double_t y1[]  = {-1,-0.2.9,5.6,7.4,9,9.6,8.7,6.3,4.5,1};
   Double_t ex1[] = {.05,.1,.07,.07,.04,.05,.06,.07,.08,.05};
   Double_t ey1[] = {.8,.7,.6,.5,.4,.4,.5,.6,.7,.8};
   gr1 = new TGraphErrors(n1,x1,y1,ex1,ey1);
   gr1->SetMarkerColor(kBlue);
   gr1->SetMarkerStyle(21);
   gr1->Draw("LP");

   //make pad2 frame transparent
   pad2->SetFillStyle(4000);
   Double_t ymin = 0;
   Double_t ymax = 1200;
   Double_t dy = (ymax-ymin)/0.8; //10 per cent margins top and bottom
   Double_t xmin = -0.4;
   Double_t xmax = 1.2;
   Double_t dx = (xmax-xmin)/0.8; //10 per cent margins left and right
   pad2->Range(xmin-0.1*dx,ymin-0.1*dy,xmax+0.1*dx,ymax+0.1*dy);
   pad2->Draw();
   pad2->cd();
      // create second graph
   Int_t n2 = 10;
   Float_t x2[]  = {-0.28, 0.005, 0.19, 0.29, 0.45, 0.56,0.65,0.80,0.90,1.01};
   Float_t y2[]  = {182,386,700,900,1000,1055,964,726,542,200};
   Float_t ex2[] = {.04,.12,.08,.06,.05,.04,.07,.06,.08,.04};
   Float_t ey2[] = {60,80,70,40,30,30,40,50,60,70};
   gr2 = new TGraphErrors(n2,x2,y2,ex2,ey2);
   gr2->SetMarkerColor(kRed);
   gr2->SetMarkerStyle(20);
   gr2->Draw("LP");
   TGaxis *axis = new TGaxis(xmax,ymin,xmax,ymax,ymin,ymax,50510,"+L");
   axis->SetLabelColor(kRed);
   axis->Draw();
}