#include "TCanvas.h"
#include "TPad.h"
#include "TMultiGraph.h"
#include "TGraph.h"
#include "TGraphAsymmErrors.h"
#include "TGraphErrors.h"
#include "TAxis.h"
#include "TLegend.h"
#include "TLatex.h"
#include "TROOT.h"
#include "TPaveStats.h"
#include "TStyle.h"
#include <cstdlib> 

void muoneneene() {
	gStyle->SetOptFit(0); //no print stat
	//gStyle->SetOptFit();
   const char *dataBe = "Muon_ene_Beam-energy_Be.txt";
   const char *dataC = "Muon_ene_Beam-energy_C.txt";
   const char *dataout = "simulazione/Muon_ene_Beam-energy.png";
   TCanvas *c01 = new TCanvas("c01","multigraph",1280,1024);
   //c01->SetLogy();
	gStyle->SetOptStat(111110);
	 auto mg = new TMultiGraph();
   float offx=1.3;
   float offy=1.3;
   float margr=0.08;
   float w=3;
   float margl=0.12;
   float line=2;
   gPad->SetLeftMargin(margl);
   gPad->SetRightMargin(margr);
   TGraphErrors *graph1 = new TGraphErrors(dataBe,"%lg %lg %lg %lg");
   TGraphErrors *graph2 = new TGraphErrors(dataC,"%lg %lg %lg %lg");

   printf("%d %d \n",graph1->GetN(),graph2->GetN());
   graph1->SetMarkerColor(kBlue);
   graph1->SetLineColor(kBlue);
   graph1->SetMarkerStyle(5);
   graph1->SetMarkerSize(6);
   graph1->SetLineWidth(line);
   //graph1->SetLineStyle(8);
   mg->Add(graph1);

   graph2->SetMarkerColor(kGreen);
   graph2->SetLineColor(kGreen);
   graph2->SetMarkerStyle(5);
   graph2->SetMarkerSize(6);
   graph2->SetLineWidth(line);
   //graph2->SetLineStyle(8);
   mg->Add(graph2);
   

   mg->SetTitle("");
   mg->GetXaxis()->SetTitle("Beam energy (GeV)");
   mg->GetYaxis()->SetTitle("<E> (GeV)");
   mg->GetYaxis()->SetTitleOffset(offy);
   mg->GetXaxis()->SetTitleOffset(offx);
   mg->GetYaxis()->SetTitleSize(40);
   mg->GetYaxis()->SetTitleFont(43);
   mg->GetYaxis()->SetLabelFont(43);
   mg->GetYaxis()->SetLabelSize(40);
   mg->GetXaxis()->SetTitleSize(40);
   mg->GetXaxis()->SetTitleFont(43);
   mg->GetXaxis()->SetLabelFont(43);
   mg->GetXaxis()->SetLabelSize(40);
   //mg->GetXaxis()->SetNdivisions(6); //
   //mg->SetMinimum(1.e-10);
   //mg->SetMaximum(1.5e-5);
   mg->Draw("AP");

   TLegend* leg = new TLegend(0.2, 0.78, .3, .88);
   leg->SetHeader("Legend");
   leg->SetNColumns(1);
   leg->AddEntry(graph1, "Beryllium", "ap");
   leg->AddEntry(graph2, "Carbon", "ap");
   //leg->Draw();
    c01->Update();
   c01->Print(dataout);
   
}