Illustrate use of the TH1::GetCumulative method.
#include <cassert>
#include <cmath>
{
TH1 *
h =
new TH1D(
"h",
"h", 100, -5., 5.);
h->FillRandom(
"gaus", 1u << 16);
for (
Int_t i = 1; i <=
hc->GetNbinsX(); ++i) {
assert(std::abs(integral[i] *
h->GetEntries() -
hc->GetBinContent(i)) < 1
e-7);
}
}
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
R__EXTERN TRandom * gRandom
1-D histogram with a double per channel (see TH1 documentation)
TH1 is the base class of all histogram classes in ROOT.
void Divide(Int_t nx=1, Int_t ny=1, Float_t xmargin=0.01, Float_t ymargin=0.01, Int_t color=0) override
Automatic pad generation by division.
virtual void SetSeed(ULong_t seed=0)
Set the random generator seed.
- Date
- July 2016
- Author
- M. Schiller
Definition in file hist014_TH1_cumulative.C.