Normalizing a Histogram
Image produced by .x NormalizeHistogram.C
Two different methods of normalizing histograms are shown, each with the original histogram. next to the normalized one.
void NormalizeHistogram()
{
std::array<double, 6> binsx{0, 5, 10, 20, 50, 100};
TH1F *orig =
new TH1F(
"orig",
"Original histogram before normalization", binsx.size() - 1, &binsx[0]);
for (int i = 0; i < 100'000; ++i) {
double r = rand.
Rndm() * 100;
}
}
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t r
R__EXTERN TStyle * gStyle
1-D histogram with a float per channel (see TH1 documentation)}
void SetTitle(const char *title) override
Change/set the title.
virtual Int_t Fill(Double_t x)
Increment bin with abscissa X by 1.
void Draw(Option_t *option="") override
Draw this histogram with options.
virtual Double_t Integral(Option_t *option="") const
Return integral of bin contents.
virtual void Scale(Double_t c1=1, Option_t *option="")
Multiply this histogram by a constant c1.
TObject * Clone(const char *newname="") const override
Make a complete copy of the underlying object.
Random number generator class based on the maximally quidistributed combined Tausworthe generator by ...
Double_t Rndm() override
TausWorth generator from L'Ecuyer, uses as seed 3x32bits integers Use a mask of 0xffffffffUL to make ...
void SetTitleFontSize(Float_t size=0)
- Author
- Advait Dhingra
Definition in file NormalizeHistogram.C.