#include "TTree.h"
#include "TFile.h"

void try4()
{
// open ROOT file 
TFile *ftree = new TFile("tree_nucnet.root", "recreate");
  // creation of the first TTree
	TTree *prop = new TTree("properties", "");
  // creation and filling of branches to hold the variables
	prop->ReadFile("properties.txt","sequence/F:Time:Temperature:Density");
// Write, Scan and Print the Tree
	prop->Write();	
	prop->Scan();
	prop->Print();
  // creation of the secound TTree
	TTree *mass = new TTree("masses", "");
  // creation and filling of branches to hold the variables
	mass->ReadFile("masses.txt","sequence/F:H_mass:He_mass");
// open ROOT file 
TFile *ftree1 = new TFile("tree1_nucnet.root", "recreate");
// Write, Scan and Print the Tree
	mass->Write();
	mass->Scan();
	mass->Print();

prop->AddFriend("masses","tree1_nucnet.root");

TCanvas *c = new TCanvas("c", "c");
	c->Divide(1, 2);
	c->cd(1); prop->Draw("masses.H_mass:Time");
	c->cd(2); prop->Draw("He_mass:Time");
}