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lt_2D_fit.C
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#include <vector>
#include <iostream>
#include <fstream>
#include "TCanvas.h"
#include "TGraph.h"
#include "TGraphErrors.h"
#include "TGraph2D.h"
#include "TGraph2DErrors.h"
#include "TH3F.h"
#include "TAxis.h"
#include "TF1.h"
#include "TF2.h"
#include "TStyle.h"
#include "TNtuple.h"
#include "TFile.h"
#include "TString.h"
#include "TMath.h"
#include "Fit/Fitter.h"
#include "Fit/BinData.h"
#include "Fit/Chi2FCN.h"
#include "TH1.h"
#include "TH2.h"
#include "TList.h"
#include "Math/WrappedMultiTF1.h"
#include "HFitInterface.h"
#include "Fit/Fitter.h"
#include "Fit/BinData.h"
#include "Fit/Chi2FCN.h"
#include "TH1.h"
#include "TF1.h"
#include "TList.h"
#include "Math/WrappedMultiTF1.h"
#include "HFitInterface.h"
#include "TCanvas.h"
#include "TStyle.h"
#include "TMath.h"
#include "TGraph.h"
#include "TRandom.h"
#include "TMultiGraph.h"
#include "TText.h"
#include "TMinuit.h"
using namespace std;
Float_t pi = 3.1415926;
Float_t pt_to_pt_systematic_error = 2.9; // percent
//Int_t t_bin_num = 3;
Int_t u_bin_num;
// // definition of shared parameter
// // background function
// int iparB1[4] = { 0,
// 1,
// 2,
// 3
// };
//
// // signal + background function
// int iparB2[4] = { 0,
// 1,
// 2,
// 3
// };
// struct GlobalChi2 {
// GlobalChi2( ROOT::Math::IMultiGenFunction & f1, ROOT::Math::IMultiGenFunction & f2) :
// fChi2_1(f1), fChi2_2(f2) {}
//
// // parameter vector is first background (in common 1 and 2) and then is signal (only in 2)
// double operator() (const double *par) const {
// double p1[4];
// p1[0] = par[0]; // exp amplitude in B histo
// p1[1] = par[1]; // exp common parameter
// p1[2] = par[2]; // exp common parameter
// p1[3] = par[3]; // exp common parameter
//
// double p2[4];
// p2[0] = par[0]; // exp amplitude in S+B histo
// p2[1] = par[1]; // exp common parameter
// p2[2] = par[2]; // gaussian amplitude
// p2[3] = par[3]; // gaussian mean
//
// return fChi2_1(p1) + fChi2_2(p2);
// }
//
// const ROOT::Math::IMultiGenFunction & fChi2_1;
// const ROOT::Math::IMultiGenFunction & fChi2_2;
// };
//
// struct GlobalChi2 {
// GlobalChi2( ROOT::Math::IMultiGenFunction & f1, ROOT::Math::IMultiGenFunction & f2) :
// fChi2_1(f1), fChi2_2(f2) {}
//
// // parameter vector is first background (in common 1 and 2) and then is signal (only in 2)
// double operator() (const double *par) const {
// double p1[2];
// p1[0] = par[0]; // exp amplitude in B histo
// p1[1] = par[1]; // exp common parameter
//
// double p2[2];
// p2[0] = par[0]; // exp amplitude in S+B histo
// p2[1] = par[1]; // exp common parameter
//
// return fChi2_1(p1) + fChi2_2(p2);
// }
//
// const ROOT::Math::IMultiGenFunction & fChi2_1;
// const ROOT::Math::IMultiGenFunction & fChi2_2;
// };
//
TGraphErrors* g_sig_l_total;
TGraphErrors* g_sig_t_total;
TGraphErrors* g_sig_lt_total;
TGraphErrors* g_sig_tt_total;
void single_setting(TString q2_set);
Double_t fun_exp(Double_t *x, Double_t *par);
Double_t LT_sep_x_lo_fun(Double_t *x, Double_t *par);
Double_t LT_sep_x_hi_fun(Double_t *x, Double_t *par);
Float_t hi_eps, lo_eps;
ofstream file_unsep;
void lt_2D_fit() {
file_unsep.open("x_unsep_all");
g_sig_l_total = new TGraphErrors();
g_sig_t_total = new TGraphErrors();
g_sig_lt_total = new TGraphErrors();
g_sig_tt_total = new TGraphErrors();
single_setting("160");
single_setting("245");
TCanvas* c4 = new TCanvas();
c4->Update();
g_sig_l_total->Draw("A*");
gStyle->SetOptFit(1);
// TF1* f1 = new TF1("f1", fun_exp, 0, 0.5, 3);
// f1->SetParameter();
// g_sig_l_total->Fit("f1", "R");
c4->Print("lt_sep_plots/sig_L_total.png");
c4->Clear();
g_sig_t_total->Draw("A*");
c4->Print("lt_sep_plots/sig_T_total.png");
c4->Clear();
g_sig_lt_total->Draw("A*");
c4->Print("lt_sep_plots/sig_LT_total.png");
c4->Clear();
g_sig_tt_total->Draw("A*");
c4->Print("lt_sep_plots/sig_TT_total.png");
// g_sig_t_total->Fit("f1", "R");
}
///*--------------------------------------------------*/
void single_setting(TString q2_set){
Float_t eps_lo_setting, eps_hi_setting;
TString eps_lo;
TString eps_hi;
Float_t eps_diff;
TGraphErrors* sig_L_g = new TGraphErrors();
TGraphErrors* sig_T_g = new TGraphErrors();
TGraphErrors* sig_LT_g = new TGraphErrors();
TGraphErrors* sig_TT_g = new TGraphErrors();
if (q2_set == "245" ) {
eps_lo = "27";
eps_hi = "55";
// eps_lo_setting = 0.27;
// eps_hi_setting = 0.55;
// lo_eps = eps_lo_setting;
// hi_eps = eps_hi_setting;
//
// eps_diff = eps_hi_setting - eps_lo_setting;
} if (q2_set == "160") {
eps_lo = "32";
eps_hi = "59";
// eps_lo_setting = 0.32;
// eps_hi_setting = 0.59;
// lo_eps = eps_lo_setting;
// hi_eps = eps_hi_setting;
//
// eps_diff = eps_hi_setting - eps_lo_setting;
}
TGraphErrors* sig_u_lo = new TGraphErrors();
TGraphErrors* sig_u_hi = new TGraphErrors();
TGraphErrors* sig_u_diff = new TGraphErrors();
TString file_name_1;
file_name_1 = "x_unsep.pl_" + q2_set + "_" + eps_lo;
TString file_name_2;
file_name_2 = "x_unsep.pl_" + q2_set + "_" + eps_hi;
TNtuple* n1 = new TNtuple("n1", "n1", "x/F:dx:x_mod:eps:theta:phi:t:u:u_min:w:Q2");
n1->ReadFile(file_name_1);
TNtuple* n2 = new TNtuple("n2", "n2", "x/F:dx:x_mod:eps:theta:phi:t:u:u_min:w:Q2");
n2->ReadFile(file_name_2);
ofstream file_out;
file_out.open("x_sep.pl_" + q2_set, ofstream::out);
// n1->Draw("t");
Float_t uu, qq, ww, thetacm, tt, u_min, lo_eps_real, hi_eps_real;
n1->SetBranchAddress("u", &uu);
n1->SetBranchAddress("Q2", &qq);
n1->SetBranchAddress("w", &ww);
n1->SetBranchAddress("theta", &thetacm);
n1->SetBranchAddress("t", &tt);
n1->SetBranchAddress("u_min", &u_min);
n1->SetBranchAddress("eps", &lo_eps_real);
n2->SetBranchAddress("eps", &hi_eps_real);
Int_t N = n1->GetEntries();
vector<Float_t> u_list, q2_list, w_list, theta_list, t_list, u_min_list, lo_eps_list, hi_eps_list;
// exit(0);
for (Int_t i = 0; i < N; ++i) {
n1->GetEntry(i);
n2->GetEntry(i);
if(!binary_search(u_list.begin(), u_list.end(), uu)) {
cout << i << " "<< uu << endl;
u_list.push_back(uu);
q2_list.push_back(qq);
w_list.push_back(ww);
theta_list.push_back(thetacm);
t_list.push_back(tt);
u_min_list.push_back(u_min);
lo_eps_list.push_back(lo_eps_real);
hi_eps_list.push_back(hi_eps_real);
}
}
//
// for (Int_t i = 0; i < N; ++i) {
//
// n1->GetEntry(i);
// n2->GetEntry(i);
//
// if(!binary_search(u_list.begin(), u_list.end(), uu)) {
//
// // cout << i << " "<< uu << endl;
//
// lo_eps_list.push_back(lo_eps_listeps_real);
// hi_eps_list.push_back(hi_eps_listeps_real);
//
// }
//
// }
//
cout << "asdasdasd "<< u_list.size() << endl;
u_bin_num = u_list.size();
// TCanvas* c1 = new TCanvas("c1", "c1", 1800, 600);
// TCanvas* c2 = new TCanvas("c2", "c2", 1800, 600);
TCanvas* c1 = new TCanvas("c1", "c1", 600, 600);
TCanvas* c2 = new TCanvas("c2", "c2", 600, 600);
//
// c1->Divide(u_bin_num, 1, 0.003, 0.003);
// c2->Divide(u_bin_num, 1, 0.003, 0.003);
//
// exit(0);
const Int_t u_bin_num_int = u_bin_num;
Double_t lo_cross_sec[u_bin_num_int];
Double_t hi_cross_sec[u_bin_num_int];
Double_t lo_cross_sec_err[u_bin_num_int];
Double_t hi_cross_sec_err[u_bin_num_int];
// for (Int_t i = 0; i < u_list.size(); i++) {
for (Int_t i = 0; i < u_bin_num; i++) {
c1->cd();
TString upp;
//
if (i == 0) {
upp.Form("u < %lf && x!=0.0", u_list[i]+0.01);
} else {
upp.Form("(u> %lf && u < %lf) && x!=0.0", u_list[i-1]+0.01, u_list[i]+0.01);
}
// exit(0);
lo_eps = lo_eps_list[i];
hi_eps = hi_eps_list[i];
// cout << lo_eps << " " << hi_eps << endl;
// exit(0);
// cout << upp << endl;
// cout << u_list[i]+0.01 << endl;
// exit(0);
// cout << "asdasd "<< upp << endl;
cout << i+1 << endl;
n1->Draw("x:phi:dx", upp, "goff");
TGraphErrors* g1_tmp = new TGraphErrors(n1->GetSelectedRows(), n1->GetV2(), n1->GetV1(), 0, n1->GetV3());
// TF1* f1 = new TF1("lo_eps_fit", LT_sep_x_lo_fun, 0, 360, 4);
// TF1* f2 = new TF1("hi_eps_fit", LT_sep_x_hi_fun, 0, 360, 4);
TF1* f1 = new TF1("lo_eps_fit", LT_sep_x_lo_fun, 0, 360, 4);
TF1* f1_unsep = new TF1("lo_eps_unsep", LT_sep_x_lo_fun_unsep, 0, 2*pi, 4);
TF1* f2 = new TF1("hi_eps_fit", LT_sep_x_hi_fun, 0, 360, 4);
TF1* f2_unsep = new TF1("hi_eps_unsep", LT_sep_x_hi_fun_unsep, 0, 2*pi, 4);
TGraphErrors* g1 = (TGraphErrors*) g1_tmp->Clone("g1");
Float_t ave_sig_lo = g1->GetMean(2);
Float_t err_sig_lo = g1->GetRMS(2);
sig_u_lo->SetPoint(sig_u_lo->GetN(), u_list[i], ave_sig_lo);
sig_u_lo->SetPointError(sig_u_lo->GetN()-1, 0, err_sig_lo);
// g_sig_t->SetPoint(g_sig_t->GetN(), u_list[i], ave_sig_lo);
// g_sig_t->SetPointError(g_sig_t->GetN()-1, 0, err_sig_lo);
// n2->Draw("x:phi", upp, "*");
// TGraph* g2_tmp = (TGraph*) c1->GetPad(i+1)->GetListOfPrimitives()->FindObject("Graph");
//
n2->Draw("x:phi:dx", upp, "goff");
TGraphErrors* g2_tmp = new TGraphErrors(n2->GetSelectedRows(), n2->GetV2(), n2->GetV1(), 0, n2->GetV3());
TGraphErrors* g2 = (TGraphErrors*) g2_tmp->Clone("g2");
// ROOT::Math::WrappedMultiTF1 wfB1(*f1,1);
// ROOT::Math::WrappedMultiTF1 wfB2(*f2,1);
//
// ROOT::Fit::DataOptions opt;
//
// ROOT::Fit::DataRange rangeB1;
// ROOT::Fit::DataRange rangeB2;
//
// ROOT::Fit::BinData dataB1(opt,rangeB1);
// ROOT::Fit::BinData dataB2(opt,rangeB2);
//
//
// rangeB1.SetRange(0,360);
// rangeB2.SetRange(0,360);
//
// // ROOT::Fit::BinData dataB1;
// ROOT::Fit::FillData(dataB1, g1);
//
// // ROOT::Fit::BinData dataB2;
// ROOT::Fit::FillData(dataB2, g2);
//
// ROOT::Fit::Chi2Function chi2_B1(dataB1, wfB1);
// ROOT::Fit::Chi2Function chi2_B2(dataB2, wfB2);
//
// GlobalChi2 globalChi2(chi2_B1, chi2_B2);
//
// ROOT::Fit::Fitter fitter;
//
// // const int Npar = 4;
// // double par0[Npar] = { 0.0, 0.0, 0.0, 0.0};
//
// const int Npar = 2;
// double par0[Npar] = { 0.0, 0.0};
//
//
// fitter.Config().SetMinimizer("Minuit","Minimize");
//
// fitter.FitFCN(2,globalChi2,par0,dataB1.Size()+dataB2.Size());
// ROOT::Fit::FitResult result = fitter.Result();
// result.Print(std::cout);
// f1->SetParameters(result.GetParams());
// f2->SetParameters(result.GetParams());
//hSB->GetListOfFunctions()->Add(fSB);
Float_t ave_sig_hi = g2->GetMean(2);
Float_t err_sig_hi = g2->GetRMS(2);
sig_u_hi->SetPoint(sig_u_hi->GetN(), u_list[i], ave_sig_hi);
sig_u_hi->SetPointError(sig_u_hi->GetN()-1, 0, err_sig_hi);
//
// g1->Draw("A*");
//
// // g1->Fit("lo_eps_fit", "R");
//
// //
// // f1->SetParameters(0.2582E-07, -0.1265E-08, 0.0, 0.0);
// // f2->SetParameters(0.2582E-07, -0.1265E-08, 0.0, 0.0);
// //
//
// g2->SetMarkerColor(2);
// g2->SetLineColor(2);
// g2->Draw("*");
//
// f1->SetLineColor(1);
// f2->SetLineColor(2);
//
//
// f1->Draw("same");
// f2->Draw("same");
//
cout << g1->GetN() << endl;
TGraph2DErrors* g_plot_err = new TGraph2DErrors();
Double_t g_xx, g_yy, g_yy_err;
for(Int_t ii = 0; ii < g1->GetN(); ii++) {
g1->GetPoint(ii, g_xx, g_yy);
g_yy_err = sqrt((g1->GetErrorY(ii) / g_yy)**2 + (pt_to_pt_systematic_error/100)**2) * g_yy;
lo_cross_sec_err[i] = lo_cross_sec_err[i] + (1/g_yy_err**2);
// g_yy = g_yy + 0.032 * g_yy;
cout << ii << " " << g_plot_err->GetN() << " "<< g_xx << " " << eps_lo_setting
<< " " << g_yy << " " << g_yy_err << endl;
g_plot_err->SetPoint(g_plot_err->GetN(), g_xx, lo_eps, g_yy);
g_plot_err->SetPointError(g_plot_err->GetN()-1, 0.0, 0.0, g_yy_err);
}
for(Int_t ii = 0; ii < g2->GetN(); ii++) {
g2->GetPoint(ii, g_xx, g_yy);
g_yy_err = sqrt((g2->GetErrorY(ii) / g_yy)**2 + (pt_to_pt_systematic_error/100)**2) * g_yy;
hi_cross_sec_err[i] = hi_cross_sec_err[i] + (1/g_yy_err**2);
// g_yy = g_yy + 0.032 * g_yy;
cout << ii << " " << g_plot_err->GetN() << " "<< g_xx << " " << eps_hi_setting
<< " " << g_yy << " " << g_yy_err << endl;
g_plot_err->SetPoint(g_plot_err->GetN(), g_xx, hi_eps, g_yy);
g_plot_err->SetPointError(g_plot_err->GetN()-1, 0.0, 0.0, g_yy_err);
}
g_plot_err->SetFillColor(29);
g_plot_err->SetMarkerSize(0.8);
g_plot_err->SetMarkerStyle(20);
g_plot_err->SetMarkerColor(kRed);
g_plot_err->SetLineColor(kBlue-3);
g_plot_err->SetLineWidth(2);
//
// // g_plot_err->SetDrawOption("perr");
//
// g_plot_err->GetXaxis()->SetLimits(0, 360);
// g_plot_err->GetYaxis()->SetLimits(0.25, 0.65);
// // g_plot_err->GetZaxis()->SetLimits(10e-9, 40e-9);
//
// g_plot_err->SetMaximum(40e-9);
// g_plot_err->SetMinimum(10e-9);
//
// // g_plot_err->GetZaxis()->SetRangeUser(10e-9, 50e-9);
// g_plot_err->GetHistogram()->SetMaximum(50e-9);
// g_plot_err->GetHistogram()->SetMinimum(10e-9);
//
// TH3F* h3 = new TH3F("h3", "h2", 10, 0, 360, 10, 0.25, 0.65, 10, 10e-9, 40e-9);
// h3->Draw();
// g_plot_err->Draw();
// c1->cd(i+1);
// g_plot_err->DrawClone("perr");
// c1->Modified();
//
//
//
// c1->Update();
// cout << "asdasdasd " << g_plot_err->GetZminE() << endl;
//
// TF2 *fff2 = new TF2("fff2","[0] + y*[1]", 0, 360, 0, 0.6);
///*--------------------------------------------------*/
// Standard LT seperation equation
// Parameter assignment
// par 0: for sigT
// par 1: for sigL
// par 2: for sigLT
// par 3: for sigTT
TF2 *fff2 = new TF2("fff2","[0] + y*[1] + sqrt(2*y*(1+y))*[2]*cos(0.017453*x) + y*[3]*cos(0.034906*x)", 0, 360, 0.1, 0.6);
TGraphErrors * sigL_change = new TGraphErrors();
TGraphErrors * sigT_change = new TGraphErrors();
TGraphErrors * sigLT_change = new TGraphErrors();
TGraphErrors * sigTT_change = new TGraphErrors();
/*--------------------------------------------------*/
/// Fit 1
///
cout << endl << "/*--------------------------------------------------*/" << endl;
cout << " Fitting Step 1" << endl;
cout << " Fit L and T, while Fix LT and TT" << endl;
/// Set parameter 0 and 1
fff2->SetParameter(0, 1);
fff2->SetParLimits(0, 0, 5);
fff2->SetParameter(1, 0.1);
fff2->SetParLimits(1, 0, 3);
/// Fix parameter 2 and 3
// fff2->FixParameter(1, 0.0);
fff2->FixParameter(2, 0.0);
fff2->FixParameter(3, 0.0);
g_plot_err->Fit("fff2", "MR");
sigL_change->SetPoint(sigL_change->GetN(), sigL_change->GetN()+1, fff2->GetParameter(1));
sigL_change->SetPointError(sigL_change->GetN()-1, 0, fff2->GetParError(1));
sigT_change->SetPoint(sigT_change->GetN(), sigT_change->GetN()+1, fff2->GetParameter(0));
sigT_change->SetPointError(sigT_change->GetN()-1, 0, fff2->GetParError(0));
/*--------------------------------------------------*/
/// Fit 2
///
cout << endl << "/*--------------------------------------------------*/" << endl;
cout << " Fitting Step 2" << endl;
cout << " Fit LT, while Fix L, T and TT" << endl;
/// Fix parameter 0 and 1 and 3
fff2->FixParameter(0, fff2->GetParameter(0));
fff2->FixParameter(1, fff2->GetParameter(1));
fff2->FixParameter(3, fff2->GetParameter(3));
/// Set parameter 2
fff2->ReleaseParameter(2);
// fff2->ReleaseParameter(2);
fff2->SetParameter(2, 0.0);
fff2->SetParLimits(2, -0.1, 0.1);
g_plot_err->Fit("fff2", "MR");
/*--------------------------------------------------*/
/// Fit 3
///
cout << endl << "/*--------------------------------------------------*/" << endl;
cout << " Fitting Step 3" << endl;
cout << " Fit L and T, while Fix LT and TT" << endl;
/// Set parameter 0 and 1
fff2->ReleaseParameter(0);
fff2->ReleaseParameter(1);
fff2->SetParameter(0, fff2->GetParameter(0));
fff2->SetParameter(1, fff2->GetParameter(1));
/// Fix parameter 2 and 3
fff2->FixParameter(2, fff2->GetParameter(2));
fff2->FixParameter(3, fff2->GetParameter(3));
g_plot_err->Fit("fff2", "MR");
sigL_change->SetPoint(sigL_change->GetN(), sigL_change->GetN()+1, fff2->GetParameter(1));
sigL_change->SetPointError(sigL_change->GetN()-1, 0, fff2->GetParError(1));
sigT_change->SetPoint(sigT_change->GetN(), sigT_change->GetN()+1, fff2->GetParameter(0));
sigT_change->SetPointError(sigT_change->GetN()-1, 0, fff2->GetParError(0));
/*--------------------------------------------------*/
/// Fit 4
///
cout << endl << "/*--------------------------------------------------*/" << endl;
cout << " Fitting Step 4" << endl;
cout << " Fit TT, while Fix T, L and LT" << endl;
/// Fix parameter 0 and 1
fff2->FixParameter(0, fff2->GetParameter(0));
fff2->FixParameter(1, fff2->GetParameter(1));
fff2->FixParameter(2, fff2->GetParameter(2));
/// Set parameter 2 and 3
// fff2->ReleaseParameter(2);
fff2->ReleaseParameter(3);
fff2->SetParameter(3, 0.0);
fff2->SetParLimits(3, -0.1, 0.1);
g_plot_err->Fit("fff2", "MR");
/*--------------------------------------------------*/
/// Fit 5
///
cout << endl << "/*--------------------------------------------------*/" << endl;
cout << " Fitting Step 5" << endl;
cout << " Fit T and L, while Fix LT and TT" << endl;
/// Fix parameter 0 and 1
fff2->ReleaseParameter(0);
fff2->ReleaseParameter(1);
fff2->SetParameter(0, fff2->GetParameter(0));
fff2->SetParameter(1, fff2->GetParameter(1));
/// Fix parameter 2 and 3
fff2->FixParameter(2, fff2->GetParameter(2));
fff2->FixParameter(3, fff2->GetParameter(3));
g_plot_err->Fit("fff2", "MR");
// /*--------------------------------------------------*/
// /// Fit 6
// ///
// cout << endl << "/*--------------------------------------------------*/" << endl;
// cout << " Fitting Step 4" << endl;
// cout << " Fit LT and TT, while Fix L and T" << endl;
//
// /// Fix parameter 0 and 1
//
// // fff2->FixParameter(0, fff2->GetParameter(0));
// // fff2->FixParameter(1, fff2->GetParameter(1));
//
//
// fff2->SetParLimits(0, fff2->GetParameter(0) - fff2->GetParError(0), fff2->GetParameter(0) + fff2->GetParError(0));
// fff2->SetParLimits(1, fff2->GetParameter(1) - fff2->GetParError(1), fff2->GetParameter(0) + fff2->GetParError(0));
//
//
// fff2->ReleaseParameter(2);
// fff2->ReleaseParameter(3);
//
// fff2->SetParameter(2, fff2->GetParameter(2));
// fff2->SetParameter(3, fff2->GetParameter(3));
//
// g_plot_err->Fit("fff2", "MR");
/*--------------------------------------------------*/
/// Last Step
///
cout << endl << "/*--------------------------------------------------*/" << endl;
cout << " Last Step" << endl;
cout << " Fit All" << endl;
/// Fix parameter 0 and 1
fff2->ReleaseParameter(0);
fff2->ReleaseParameter(1);
fff2->ReleaseParameter(2);
fff2->ReleaseParameter(3);
// fff2->SetParLimits(0, 0, 1);
// fff2->SetParLimits(1, 0, 1);
//
// fff2->SetParLimits(2, -1, 1);
// fff2->SetParLimits(3, -1, 1);
// fff2->FixParameter(2, 0.0);
// fff2->FixParameter(3, 0.0);
// fff2->SetParLimits(0, 0, 0.3);
// fff2->FixParameter(1, 0.0);
// fff2->SetParLimits(0, fff2->GetParameter(0) - fff2->GetParError(0), fff2->GetParameter(0) + fff2->GetParError(0));
// fff2->SetParLimits(1, fff2->GetParameter(1) - fff2->GetParError(1), fff2->GetParameter(0) + fff2->GetParError(0));
//
// fff2->SetParLimits(2, fff2->GetParameter(2) - fff2->GetParError(2), fff2->GetParameter(2) + fff2->GetParError(2));
// fff2->SetParLimits(3, fff2->GetParameter(3) - fff2->GetParError(3), fff2->GetParameter(3) + fff2->GetParError(3));
// fff2->SetParameter(0, fff2->GetParameter(0));
// fff2->SetParameter(1, fff2->GetParameter(1));
// fff2->SetParameter(2, fff2->GetParameter(2));
// fff2->SetParameter(3, fff2->GetParameter(3));
g_plot_err->Fit("fff2");
sigL_change->SetPoint(sigL_change->GetN(), sigL_change->GetN()+1, fff2->GetParameter(1));
sigL_change->SetPointError(sigL_change->GetN()-1, 0, fff2->GetParError(1));
sigT_change->SetPoint(sigT_change->GetN(), sigT_change->GetN()+1, fff2->GetParameter(0));
sigT_change->SetPointError(sigT_change->GetN()-1, 0, fff2->GetParError(0));
c2->Update();
c2->cd();
// g1->Draw("A*");
g1->SetMarkerStyle(5);
// // g1->Fit("lo_eps_fit", "R");
//
// //
// // f1->SetParameters(0.2582E-07, -0.1265E-08, 0.0, 0.0);
// // f2->SetParameters(0.2582E-07, -0.1265E-08, 0.0, 0.0);
// //
//
g1->GetXaxis()->SetLimits(0, 360);
g2->GetXaxis()->SetLimits(0, 360);
g2->SetMarkerColor(2);
g2->SetLineColor(2);
g2->SetMarkerStyle(4);
// g2->Draw("*");
TMultiGraph *g = new TMultiGraph();
g->Add(g1);
g->Add(g2);
g->Draw("AP");
g->GetHistogram()->SetMinimum(0.0);
g->GetHistogram()->SetMaximum(0.8);
// g->GetHistogram()->SetMinimum(0.0);
// g->GetHistogram()->SetMinimum(0.0);
// g->GetHistogram()->SetMaximum(2e-7);
//
// g->SetTitle("Unseprated #sigma");
//
g->GetYaxis()->SetTitle("Unseparated Cross Section [#mub/GeV^{2}]");
g->GetYaxis()->CenterTitle();
g->GetYaxis()->SetTitleOffset(1.4);
g->GetXaxis()->SetTitle("#it{#phi} [degree]");
g->GetXaxis()->CenterTitle();
// g->GetYaxis()->SetTitle("#sigma");
// g->GetYaxis()->SetTitleOffset(1.6);
// g->GetXaxis()->SetRangeUser(0, 360);
g->GetXaxis()->SetLimits(0, 360);
c2->Update();
f1->FixParameter(0, fff2->GetParameter(0));
f1->FixParameter(1, fff2->GetParameter(1));
f1->FixParameter(2, fff2->GetParameter(2));
f1->FixParameter(3, fff2->GetParameter(3));
f1_unsep->FixParameter(0, fff2->GetParameter(0));
f1_unsep->FixParameter(1, fff2->GetParameter(1));
f1_unsep->FixParameter(2, fff2->GetParameter(2));
f1_unsep->FixParameter(3, fff2->GetParameter(3));
// f1->FixParameter(2, 0.0);
// f1->FixParameter(3, 0.0);
f2->FixParameter(0, fff2->GetParameter(0));
f2->FixParameter(1, fff2->GetParameter(1));
f2->FixParameter(2, fff2->GetParameter(2));
f2->FixParameter(3, fff2->GetParameter(3));
f2_unsep->FixParameter(0, fff2->GetParameter(0));
f2_unsep->FixParameter(1, fff2->GetParameter(1));
f2_unsep->FixParameter(2, fff2->GetParameter(2));
f2_unsep->FixParameter(3, fff2->GetParameter(3));
// f2->FixParameter(2, 0.0);
// f2->FixParameter(3, 0.0);
f1->SetLineColor(1);
f2->SetLineColor(2);
// TF1* ftest = new TF1("ftest", "sin(3.14*90/180)", 0, 1);
// ftest->Draw();
// /*--------------------------------------------------*/
// ///Test
//
// Float_t test_l, test_t;
//
// test_l = 0.7515E-8;
// test_t = 0.1082E-8;
//
//
// f1->FixParameter(0, test_l);
// f1->FixParameter(1, test_t);
//
// f2->FixParameter(0, test_l);
// f2->FixParameter(1, test_t);
//
f1->SetLineWidth(2);
f2->SetLineWidth(2);
f2->SetLineStyle(9);
g2->SetLineColor(2);
f1->Draw("same");
f2->Draw("same");
lo_cross_sec[i] = f1_unsep->Integral(0, 2*pi)/(2*pi);
hi_cross_sec[i] = f2_unsep->Integral(0, 2*pi)/(2*pi);
TLegend* leg = new TLegend(0.7,0.7,0.97,0.97);
leg->SetFillColor(0);
leg->SetMargin(0.4);