15void tmva004_RStandardScaler()
18 ROOT::RDataFrame df(
"TreeS",
"http://root.cern/files/tmva_class_example.root");
19 auto x = AsTensor<float>(df);
29 TH1F h1(
"h1",
";x_{4};N_{Events}", 20, -4, 4);
30 TH1F h2(
"h2",
";x_{4};N_{Events}", 20, -4, 4);
31 for (std::size_t i = 0; i <
x.GetShape()[0]; i++) {
38 h2.SetLineColor(
kBlue);
41 auto c =
new TCanvas(
"",
"", 800, 800);
45 TLegend legend(0.7, 0.7, 0.89, 0.89);
46 legend.SetBorderSize(0);
47 legend.AddEntry(
"h1",
"Unscaled",
"l");
48 legend.AddEntry(
"h2",
"Scaled",
"l");
R__EXTERN TStyle * gStyle
ROOT's RDataFrame offers a modern, high-level interface for analysis of data stored in TTree ,...
virtual void SetLineWidth(Width_t lwidth)
Set the line width.
virtual void SetLineColor(Color_t lcolor)
Set the line color.
1-D histogram with a float per channel (see TH1 documentation)}
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.
This class displays a legend box (TPaveText) containing several legend entries.
void Fit(const RTensor< T > &x)
std::vector< T > Compute(const std::vector< T > &x)
void SetOptStat(Int_t stat=1)
The type of information printed in the histogram statistics box can be selected via the parameter mod...