/* The purpose of this script is to
 * add analysed root files. The best way
 * is to split a single run into several 
 * parts (each part contains several segments
 */
#include <iostream>
#include <cstdlib>

using namespace std;

#include "TH1.h"
#include "TH2.h"
#include "TList.h"
#include "TFile.h"

void AddRootFiles(TChain *chain, string fileNameIn) {
	/////////////////////////////////////////////
	//
	// change locations of analyzed files here!!!
	//
	/////////////////////////////////////////////
	string dir = "/scratch4/yxiao/rootanalysis/analysis/";

	string fileName = Form("%s_DD.root", 
						   fileNameIn.c_str()); 

	// check if the file exists
	std::ifstream infile(Form("%s%s", 
							  dir.c_str(), 
							  fileName.c_str()
							  ) 
						 );
	if(!infile.good()) {
		cout << ":((((((    CANNOT FIND FILE: "
			 << (dir+fileName).c_str() << endl;
	} else {
		chain->AddFile((dir+fileName).c_str());
		cout << "File "
			 << (dir+fileName).c_str() << " loaded!" << endl;
	}
	

}