#include <stdio.h>
#include <string>
#include <vector>
#include <iostream>
#include <sstream>

#include "TGraphErrors.h"
#include "TTree.h"
#include "TStyle.h"
#include "TCanvas.h"
#include "TBrowser.h"
#include "TLegend.h"
#include "TSystemDirectory.h"
#include "TFile.h"

using namespace std;

int main(){

	// Define directory of TFile with directories
	
	TFile *Datafile = new TFile("~/Desktop/FileSampleCode.root", "RECREATE");

	TDirectory *SubDirRawData = Datafile->mkdir("RawData");
	TDirectory *SubDirAnalysis = Datafile->mkdir("Analysis");


	// Define and fill TGraphErrors, set its properties

	TGraphErrors *TGraphRawData = new TGraphErrors();
	TGraphErrors *TGraphAnalysis = new TGraphErrors();
	
	
	for (int i = 0; i < 10; i++) {
	
		TGraphRawData->SetPoint(i, i, 5);
		TGraphRawData->SetPointError(i, 0, 1);
	
		TGraphAnalysis->SetPoint(i, i, 10);
		TGraphAnalysis->SetPointError(i, 0, 2);
	}


	TGraphRawData->SetName("GraphRawData");
	TGraphRawData->SetTitle("GraphRawData");
	
	TGraphAnalysis->SetName("GraphAnalysis");
	TGraphAnalysis->SetTitle("GraphAnalysis");


	// Change to respective directories and write TGraphErrors to TFile

	SubDirRawData->cd();
	TGraphRawData->Write();

	SubDirAnalysis->cd();
	TGraphAnalysis->Write();


	Datafile->Close();


	return 0;
	
}