#include "TCanvas.h"
#include "TPad.h"
#include "TMultiGraph.h"
#include "TGraph.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 posratio() {
	gStyle->SetOptFit(0); //no print stat
	//gStyle->SetOptFit();
   const char *datain = "Pos_ratio_number_Be.txt";
  // const char *datain = "Pos_ratio_number_C.txt";
	const char *dataout = "Pos_ratio_number_circ_Be.png";
//	const char *dataout = "Pos_ratio_number_circ_C.png";
   TCanvas *c01 = new TCanvas("c01","graph",1280,1024);
   //c01->SetLogy();
	gStyle->SetOptStat(111110);
   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(datain,"%lg %lg 0 %lg");
   printf("%d \n",graph1->GetN() );
   graph1->SetMarkerColor(kBlue);
   graph1->SetLineColor(kBlue);
   graph1->SetMarkerStyle(3);
   graph1->SetMarkerSize(1.3);
   graph1->SetLineWidth(line);
   graph1->SetTitle();
   graph1->GetXaxis()->SetTitle("Thickness (mm)");
   graph1->GetYaxis()->SetTitle("Ratio");
   graph1->GetYaxis()->SetTitleOffset(offy);
   graph1->GetXaxis()->SetTitleOffset(offx);
   graph1->GetYaxis()->SetTitleSize(40);
   graph1->GetYaxis()->SetTitleFont(43);
   graph1->GetYaxis()->SetLabelFont(43);
   graph1->GetYaxis()->SetLabelSize(40);
   graph1->GetXaxis()->SetTitleSize(40);
   graph1->GetXaxis()->SetTitleFont(43);
   graph1->GetXaxis()->SetLabelFont(43);
   graph1->GetXaxis()->SetLabelSize(40);
   graph1->SetLineStyle(10);
   graph1->SetMarkerSize(5);
   graph1->Draw();
/*   TLegend* leg = new TLegend(0.15, 0.80, .25, .85);
   leg->SetHeader("Legend");
   leg->SetNColumns(1);
   leg->AddEntry(graph1, "Data", "ap");
   leg->AddEntry(fit, "Fit", "l");
   leg->Draw();*/
    c01->Update();
   c01->Print(dataout);
   
}