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Reference Guide
TMVA_SOFIE_RDataFrame.C File Reference

Detailed Description

View in nbviewer Open in SWAN This macro provides an example of using a trained model with Keras and make inference using SOFIE and RDataFrame This macro uses as input a Keras model generated with the TMVA_Higgs_Classification.C tutorial You need to run that macro before to generate the trained Keras model Then you need to run the macro TMVA_SOFIE_Keras_HiggsModel.C to generate the corresponding header file using SOFIE.

Execute in this order:

root TMVA_Higgs_Classification.C
root TMVA_SOFIE_Keras_HiggsModel.C
using namespace TMVA::Experimental;
// need to add the current directory (from where we are running this macro)
// to the include path for Cling
#include "Higgs_trained_model.hxx"
using namespace TMVA::Experimental;
void TMVA_SOFIE_RDataFrame(int nthreads = 2){
std::string inputFileName = "Higgs_data.root";
std::string inputFile = "http://root.cern.ch/files/" + inputFileName;
ROOT::RDataFrame df1("sig_tree", inputFile);
int nslots = df1.GetNSlots();
std::cout << "Running using " << nslots << " threads" << std::endl;
auto h1 = df1.DefineSlot("DNN_Value", SofieFunctor<7, TMVA_SOFIE_Higgs_trained_model::Session>(nslots),
{"m_jj", "m_jjj", "m_lv", "m_jlv", "m_bb", "m_wbb", "m_wwbb"})
.Histo1D({"h_sig", "", 100, 0, 1}, "DNN_Value");
ROOT::RDataFrame df2("bkg_tree", inputFile);
nslots = df2.GetNSlots();
auto h2 = df2.DefineSlot("DNN_Value", SofieFunctor<7, TMVA_SOFIE_Higgs_trained_model::Session>(nslots),
{"m_jj", "m_jjj", "m_lv", "m_jlv", "m_bb", "m_wbb", "m_wwbb"})
.Histo1D({"h_bkg", "", 100, 0, 1}, "DNN_Value");
h2->SetLineColor(kBlue);
auto c1 = new TCanvas();
h2->DrawClone();
h1->DrawClone("SAME");
c1->BuildLegend();
}
#define R__ADD_INCLUDE_PATH(PATH)
Definition: Rtypes.h:490
@ kRed
Definition: Rtypes.h:66
@ kBlue
Definition: Rtypes.h:66
R__EXTERN TStyle * gStyle
Definition: TStyle.h:414
ROOT's RDataFrame offers a modern, high-level interface for analysis of data stored in TTree ,...
Definition: RDataFrame.hxx:40
virtual void SetLineColor(Color_t lcolor)
Set the line color.
Definition: TAttLine.h:40
The Canvas class.
Definition: TCanvas.h:23
virtual TObject * DrawClone(Option_t *option="") const
Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad...
Definition: TObject.cxx:221
void SetOptStat(Int_t stat=1)
The type of information printed in the histogram statistics box can be selected via the parameter mod...
Definition: TStyle.cxx:1590
return c1
Definition: legend1.C:41
TH1F * h1
Definition: legend1.C:5
void EnableImplicitMT(UInt_t numthreads=0)
Enable ROOT's implicit multi-threading for all objects and methods that provide an internal paralleli...
Definition: TROOT.cxx:527
Author
Lorenzo Moneta

Definition in file TMVA_SOFIE_RDataFrame.C.