16 auto c1 =
new TCanvas(
"c1",
"A ratio example");
17 auto h1 =
new TH1D(
"h1",
"h1", 50, 0, 10);
18 auto h2 =
new TH1D(
"h2",
"h2", 50, 0, 10);
19 auto f1 =
new TF1(
"f1",
"exp(- x/[0] )");
22 h2->FillRandom(
"f1", 2000);
30 rp->GetLowYaxis()->SetNdivisions(505);
R__EXTERN TStyle * gStyle
virtual void FillRandom(const char *fname, Int_t ntimes=5000)
Fill histogram following distribution in function fname.
virtual void Sumw2(Bool_t flag=kTRUE)
Create structure to store sum of squares of weights.
void SetOptStat(Int_t stat=1)
The type of information printed in the histogram statistics box can be selected via the parameter mod...
THist< 1, double, THistStatContent, THistStatUncertainty > TH1D
Class for displaying ratios, differences and fit residuals.
virtual void SetParameter(Int_t param, Double_t value)
virtual void SetTitle(const char *title="")
Set the title of the TNamed.