Changing axis

ROOT
1

Hi There

I Have drawn a TGraph but the axis dont start from 0. Is there a way of fixing the axis when you first declare the TGraph? I know what I want the min and max of both x and y axis to be.

2 
{
   Int_t n=20;
   Double_t x[n],y[n];
   for (Int_t i=0; i < n; i++) {
      x[i]=i*0.1;
      y[i]=10*sin(x[i]+0.2);
   }
   TGraph *gr1 = new TGraph (n,x,y);
   TAxis *axis = gr1->GetXaxis();

   axis->SetLimits(0.,5.);                 // along X
   gr1->GetHistogram()->SetMaximum(20.);   // along          
   gr1->GetHistogram()->SetMinimum(-20.);  //   Y     

   gr1->Draw("AC*");
}
3

Great, this works

Thanks