17 |
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#include "Math/GSLIntegrator.h" |
18 |
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#include "Math/WrappedTF1.h" |
19 |
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|
20 |
< |
TString fileName = "skimmed/QCDbin4.root"; |
20 |
> |
// Full Sim |
21 |
> |
// TString fileName = "skimmed226/QCDbin4_NewRelIso_rebin1_TandL.root"; |
22 |
> |
// TString fileName = "skimmed226/QCDbin3_NewRelIso_0053.root"; |
23 |
> |
// TString fileName = "skimmed226/QCDbin2_NewRelIso_wErrors_TandL.root"; |
24 |
> |
TString fileName = "skimmed226/QCDbin4_NewRelIso_rebin1_wErrors_TandL.root"; |
25 |
> |
// Fast Sim |
26 |
> |
// TString fileName = "skimmed226/QCDbin3_NewRelIso_FastSim_0053.root"; |
27 |
> |
// TString fileName = "skimmed226/QCDbin4_NewRelIso_FastSim_0053.root"; |
28 |
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// Dynamic(true) or static(false) range |
29 |
+ |
|
30 |
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bool dynamic = true; |
31 |
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// Dynamic fit region weight |
32 |
< |
double wxmin = 1.9; // 1.82 for loose 2.1 for tight |
33 |
< |
double wxmax = 3.0; // 0.6 for loose 0.8 for tight |
32 |
> |
double wxmin = 1.75; // 1.82 for loose 2.1 for tight 1.81875/1.6625 for full; 1.9875 for Fast |
33 |
> |
double wxmax = wxmin/2.; // 0.6 for loose 0.8 for tight |
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// Select fitting function: |
35 |
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TString s0 = "landau"; |
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// Select New or Old reliso: |
37 |
< |
TString isoname = "New"; |
38 |
< |
|
37 |
> |
TString isoname = "New"; // Only New for Landau |
38 |
> |
bool drawtail = true; |
39 |
> |
bool debug = false; |
40 |
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void fitLandau() |
41 |
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{ |
42 |
+ |
gROOT->SetStyle("CMS"); |
43 |
+ |
// gStyle->SetOptStat("n"); |
44 |
+ |
// gStyle->SetOptTitle(1); |
45 |
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gStyle->SetOptFit(01111); |
46 |
< |
|
46 |
> |
|
47 |
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TFile *file = TFile::Open(fileName); |
48 |
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TTree *tree = (TTree*)file->Get("myTree"); |
49 |
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TH1D *h0 = (TH1D*)file->Get("histos/h_RelIso_all"); |
50 |
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TH1D *h1 = (TH1D*)file->Get("histos/h_RelIso_qcd"); |
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Int_t jbin; |
52 |
< |
Double_t na; |
52 |
> |
Double_t na,na1; |
53 |
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tree->SetBranchAddress("jbin",&jbin); |
54 |
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tree->SetBranchAddress("na",&na); |
55 |
< |
// Int_t nentries = (Int_t)tree->GetEntries(); |
55 |
> |
if (fileName.Contains("TandL")) |
56 |
> |
tree->SetBranchAddress("na1",&na1); |
57 |
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tree->GetEntry(0); |
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// define fit region: |
59 |
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double ax0 = 0.; |
60 |
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double axf = 0.; |
61 |
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double bx0= 0.; |
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double bxf = 0.; |
63 |
+ |
double loosecut = 0.; |
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|
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cout<<"Use "<<isoname<<" RelIso"<<endl; |
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|
67 |
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if ( isoname.Contains("Old") ) { |
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// old |
69 |
+ |
loosecut = 0.9; |
70 |
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ax0 = 0.95; |
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axf = 1.0; |
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bx0 = 0.0; |
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// new |
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ax0 = 0.0; |
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axf = 0.053; // default: 0.053; loose:0.11 |
79 |
< |
bx0 = 0.2; |
80 |
< |
bxf = 2.; |
79 |
> |
loosecut = 0.11; |
80 |
> |
bx0 = 0.2; // 0.2 |
81 |
> |
bxf = 2.; // 1.2 |
82 |
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} |
83 |
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|
84 |
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int niter = 1; |
85 |
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double pass[3] = {0.,0.,0.}; |
86 |
< |
double ns, ns2; |
87 |
< |
ns = ns2 = 0.; |
86 |
> |
double bound[2] = {0.,0.}; |
87 |
> |
double ns[2] = {0.,0.}; |
88 |
> |
double ns2 = 0.; |
89 |
|
|
90 |
< |
TCanvas *cv = new TCanvas("cv","cv",800,600); |
90 |
> |
TCanvas *cv = new TCanvas("cv","cv",600,600); |
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|
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// Fit QCD in background region |
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cout<<"Fitting with "<<s0<<" function!"<<endl; |
111 |
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else{ |
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cout << "Wrong bin number!" << endl; |
113 |
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} |
114 |
< |
h_all->Draw(); |
114 |
> |
|
115 |
> |
Int_t nbxMax = h_all->GetXaxis()->FindBin(2.0); |
116 |
> |
h_all->GetXaxis()->SetRange(2,h_all->GetXaxis()->FindBin(bxf)); |
117 |
> |
Int_t nbMax = h_all->GetMaximumBin(); |
118 |
> |
cout << "Bin number at peak= " << nbMax << endl; |
119 |
> |
h_all->GetXaxis()->SetRange(1,nbxMax); |
120 |
> |
TAxis *axis0 = h_all->GetXaxis(); |
121 |
> |
double bwidth = axis0->GetBinWidth(nbMax); |
122 |
> |
cout << "bwidth = " << bwidth << endl; |
123 |
> |
|
124 |
> |
TString title = "RelIso'"; |
125 |
> |
if( jbin == 4) |
126 |
> |
title += " (#geq 4 jets)"; |
127 |
> |
else if ( jbin == 1 ) { |
128 |
> |
title += " ("; |
129 |
> |
title += jbin; |
130 |
> |
title += " jet)"; |
131 |
> |
} |
132 |
> |
else if ( jbin < 4 ) { |
133 |
> |
title += " ("; |
134 |
> |
title += jbin; |
135 |
> |
title += " jets)"; |
136 |
> |
h_RelIso_all->SetTitle(title); |
137 |
> |
} |
138 |
> |
else if ( jbin == 5 ) { |
139 |
> |
h_RelIso_all->SetTitle( isoname+" RelIso distribution (#geq 1 jets (up to 3 jets))"); |
140 |
> |
} |
141 |
> |
else { |
142 |
> |
cout<<"Don't mess around!!! jbin should be less than 6!"<<endl; |
143 |
> |
return; |
144 |
> |
} |
145 |
> |
// gStyle->SetErrorX(0); |
146 |
> |
h_all->GetXaxis()->SetTitle(title); |
147 |
> |
h_all->GetXaxis()->SetLabelFont(42); |
148 |
> |
h_all->GetXaxis()->SetLabelSize(0.03); |
149 |
> |
h_all->GetXaxis()->SetTitleFont(42); |
150 |
> |
h_all->GetXaxis()->SetTitleSize(0.035); |
151 |
> |
h_all->GetXaxis()->SetTitleOffset(1.2); |
152 |
> |
|
153 |
> |
h_all->GetYaxis()->SetTitle("Events ( L_{Int}= 20 pb^{-1} )"); |
154 |
> |
h_all->GetYaxis()->SetLabelFont(42); |
155 |
> |
h_all->GetYaxis()->SetLabelSize(0.03); |
156 |
> |
h_all->GetYaxis()->SetTitleFont(42); |
157 |
> |
h_all->GetYaxis()->SetTitleSize(0.035); |
158 |
> |
h_all->GetYaxis()->SetTitleOffset(1.6); |
159 |
> |
h_all->GetXaxis()->SetRangeUser(0.,1.6); |
160 |
> |
// h_all->Draw(); |
161 |
> |
h_all->Draw("e"); |
162 |
|
|
163 |
|
cout << "\n>>>>> Iteration step: "<< niter << endl; |
164 |
|
h_all->Fit(s0,"0","",bx0,bxf); |
168 |
|
Int_t npar = f0->GetNpar(); |
169 |
|
Double_t chi2 = f0->GetChisquare(); |
170 |
|
Int_t ndof = f0->GetNDF(); |
171 |
< |
pass[0] = chi2/ndof; |
172 |
< |
pass[1] = pass[0]; |
173 |
< |
cout << ">> Norm chi2 = " << pass[0] << endl; |
174 |
< |
|
171 |
> |
pass[0] = chi2/ndof; // Very first fit norm chi2. Fixed range. |
172 |
> |
cout << ">>>> Norm chi2 = " << pass[0] << endl; |
173 |
> |
if (!dynamic) |
174 |
> |
pass[1] = pass[0]; |
175 |
> |
else |
176 |
> |
pass[1] = 999.; |
177 |
> |
|
178 |
|
double * par0 = new double [npar]; |
179 |
|
double * parErr0 = new double [npar]; |
180 |
|
|
187 |
|
par0[i] = f0->GetParameter(i); |
188 |
|
parErr0[i] = f0->GetParError(i); |
189 |
|
} |
190 |
< |
|
190 |
> |
bound[0] = bx0; |
191 |
> |
bound[1] = bxf; |
192 |
|
if(dynamic) { |
193 |
|
bx0 = f0->GetParameter(1) - wxmin*f0->GetParameter(2); |
194 |
|
bxf = f0->GetParameter(1) + wxmax*f0->GetParameter(2); |
195 |
|
} |
196 |
+ |
|
197 |
|
double delta = pass[1]-pass[2]; |
198 |
|
|
199 |
< |
while (dynamic && niter <= 20 && abs(pass[1]-pass[2]) > 0.00001) { |
199 |
> |
while (dynamic && niter <= 20 && abs(delta) > 0.00001) { |
200 |
|
if (niter > 1) |
201 |
< |
pass[1]=pass[2]; |
202 |
< |
if (delta >= 0){ |
201 |
> |
pass[1] = pass[2]; |
202 |
> |
if (delta != 0){ |
203 |
|
niter++; |
204 |
|
cout << "\n>>>>> Iteration step: "<< niter << endl; |
205 |
< |
cout << ">> Pass[1] = " << pass[1] << endl; |
205 |
> |
cout << ">> Previous step norm. chi2 = " << pass[1] << endl; |
206 |
> |
cout << ">>>> Starting fitting new range (bx0, bxf) = (" << bx0; |
207 |
> |
cout << ", " << bxf << ")" << endl; |
208 |
|
|
209 |
|
h_all->Fit(s0,"0","",bx0,bxf); |
210 |
< |
TF1 *fi = (TF1*)h_all->GetFunction(s0); |
210 |
> |
TF1 *fi = (TF1*)h_all->GetFunction(s0); |
211 |
|
pass[2] = fi->GetChisquare()/fi->GetNDF(); |
212 |
< |
cout << ">> Norm chi2 = pass[2] = " << pass[2] << endl; |
212 |
> |
cout << ">> Current step norm. chi2 = " << pass[2] << endl; |
213 |
|
delta = pass[1]-pass[2]; |
214 |
|
cout << ">> Delta = " << delta << endl; |
215 |
< |
|
216 |
< |
if (delta >= 0) { |
215 |
> |
if (delta > 0) { |
216 |
> |
bound[0] = bx0; |
217 |
> |
bound[1] = bxf; |
218 |
|
printf("Function has %i parameters. Chisquare = %g\n", |
219 |
|
npar, |
220 |
|
fi->GetChisquare()); |
230 |
|
} |
231 |
|
bx0 = fi->GetParameter(1) - wxmin*fi->GetParameter(2); |
232 |
|
bxf = fi->GetParameter(1) + wxmax*fi->GetParameter(2); |
233 |
< |
cout << ">> bx0, bxf = " << bx0 << ", " << bxf << endl; |
233 |
> |
cout << ">> Range for next iteration (bx0, bxf) = (" << bx0; |
234 |
> |
cout << ", " << bxf << ")" << endl; |
235 |
> |
} |
236 |
> |
else if (delta < 0) { |
237 |
> |
cout << " Use previous fit parameters for extrapolation fit" << endl; |
238 |
> |
delta = 0; |
239 |
|
} |
240 |
|
else { |
241 |
< |
cout << ">> Use previous fit!" << endl; |
241 |
> |
// bound[0] = (bound[0]<bx0)?bound[0]:bx0; |
242 |
> |
// bound[1] = (bound[1]>bxf)?bound[1]:bxf; |
243 |
> |
cout << ">> Fit converges." << endl; |
244 |
> |
cout << ">> Best fitting region = (" << bound[0]; |
245 |
> |
cout << ", " << bound[1] << ")" << endl; |
246 |
|
} |
247 |
+ |
if (niter == 2) |
248 |
+ |
pass[0]=pass[2]; // First dynamic fit norm. chi2 |
249 |
|
} |
250 |
|
} |
251 |
< |
|
252 |
< |
cout << ">>> Final fitting resion (bx0, bxf) = " << bx0 << ", " << bxf << endl; |
253 |
< |
|
254 |
< |
// Get number of events within fitted region |
251 |
> |
if(debug){ |
252 |
> |
cout << ">>> First dynamic fit norm. chi2 = " << pass[0] << endl; |
253 |
> |
cout << ">>> Min dynamic norm. chi2 = " << pass[1] << endl; |
254 |
> |
cout << ">>> Last fitting region (bx0, bxf) = (" << bx0 << ", " << bxf << ")"<< endl; |
255 |
> |
cout << ">>> Best fitting region (bx0, bxf) = (" << bound[0] << ", " << bound[1] << ")"<< endl; |
256 |
> |
} |
257 |
> |
// Get number of events within fitted (control) region |
258 |
|
TAxis *axis = h_all->GetXaxis(); |
259 |
< |
int bmin = axis->FindBin(bx0); |
260 |
< |
int bmax = axis->FindBin(bxf); |
259 |
> |
int bmin = axis->FindBin(bound[0]); |
260 |
> |
int bmax = axis->FindBin(bound[1]); |
261 |
|
double nfac1 = h_all->Integral(bmin,bmax); |
262 |
< |
nfac1 -= (h_all->GetBinContent(bmin))*(bx0-axis->GetBinLowEdge(bmin))/axis->GetBinWidth(bmin); |
263 |
< |
nfac1 -= (h_all->GetBinContent(bmax))*(axis->GetBinUpEdge(bmax)-bxf)/axis->GetBinWidth(bmax); |
262 |
> |
nfac1 -= (h_all->GetBinContent(bmin))*(bound[0]-axis->GetBinLowEdge(bmin))/axis->GetBinWidth(bmin); |
263 |
> |
nfac1 -= (h_all->GetBinContent(bmax))*(axis->GetBinUpEdge(bmax)-bound[1])/axis->GetBinWidth(bmax); |
264 |
|
cout << ">>> Final Nfac = " << nfac1 << endl; |
265 |
|
|
266 |
|
// //////////////////////// |
267 |
|
// Histos and extrapolation |
268 |
|
|
269 |
|
TF1 *f1 = (TF1*)f0->Clone(); |
270 |
< |
f1->SetRange(bx0,bxf); |
270 |
> |
f1->SetRange(bound[0],bound[1]); |
271 |
|
for (int i=0;i<npar;i++) { |
272 |
|
cout<<" >> Par["<<i<<"]="<<par0[i]<<"; Error="<<parErr0[i]<<endl; |
273 |
|
f1->SetParameter(i,par0[i]); |
274 |
|
} |
189 |
– |
|
275 |
|
f1->SetLineColor(2); |
276 |
+ |
|
277 |
+ |
TPaveStats *p0 = (TPaveStats*)h_qcd->GetListOfFunctions()->FindObject("stats"); |
278 |
+ |
h_qcd->GetListOfFunctions()->Remove(p0); |
279 |
+ |
h_qcd->SetStats(0); |
280 |
+ |
h_qcd->SetLineWidth(2); |
281 |
|
h_qcd->SetLineColor(40); |
282 |
|
h_qcd->SetFillStyle(3018); |
283 |
|
h_qcd->SetFillColor(38); |
284 |
< |
h_qcd->Draw("same"); |
285 |
< |
f1->Draw("same"); |
284 |
> |
h_qcd->Draw("sames hist"); |
285 |
> |
// h_qcd->Draw("hist sames"); |
286 |
> |
f1->Draw("sames"); |
287 |
|
|
288 |
|
// Connect fitted and extrapolated region |
289 |
|
TF1 *fin = (TF1*)f1->Clone(); |
290 |
< |
fin->SetRange(axf,bx0); |
290 |
> |
fin->SetRange(axf,bound[0]); |
291 |
|
fin->SetLineStyle(2); |
292 |
|
fin->SetLineColor(8); |
293 |
< |
fin->Draw("same"); |
293 |
> |
fin->Draw("sames"); |
294 |
> |
|
295 |
> |
if (drawtail){ |
296 |
> |
TF1 *fine = (TF1*)f1->Clone(); |
297 |
> |
fine->SetRange(bound[1],2.0); |
298 |
> |
fine->SetLineStyle(2); |
299 |
> |
fine->SetLineColor(8); |
300 |
> |
fine->Draw("sames"); |
301 |
> |
} |
302 |
|
|
303 |
|
TF1 *f2 = (TF1*)f1->Clone(); |
304 |
|
f2->SetRange(ax0,axf); |
305 |
|
f2->SetLineColor(4); |
306 |
< |
f2->Draw("same"); |
306 |
> |
f2->Draw("sames"); |
307 |
|
int np = 100; |
308 |
|
double *x=new double[np]; |
309 |
|
double *w=new double[np]; |
310 |
|
f2->CalcGaussLegendreSamplingPoints(np,x,w,1e-15); |
311 |
< |
ns = f2->IntegralFast(np,x,w,ax0,axf); |
312 |
< |
ns/=(f2->Integral(bx0,bxf)); |
313 |
< |
ns*=nfac1; |
314 |
< |
cout<<">>> Ns by usual integral = "<<ns<<endl; |
311 |
> |
|
312 |
> |
if (fileName.Contains("0053") || fileName.Contains("TandL")) { |
313 |
> |
ns[0] = f2->IntegralFast(np,x,w,ax0,axf); |
314 |
> |
ns[0]/=(f2->Integral(bound[0],bound[1])); |
315 |
> |
ns[0]*=nfac1; |
316 |
> |
} |
317 |
> |
else if (fileName.Contains("011")) { |
318 |
> |
ns[0] = f2->IntegralFast(np,x,w,ax0,loosecut); |
319 |
> |
ns[0]/=(f2->Integral(bound[0],bound[1])); |
320 |
> |
ns[0]*=nfac1; |
321 |
> |
} |
322 |
> |
|
323 |
> |
ns[1] = f2->IntegralFast(np,x,w,ax0,loosecut); |
324 |
> |
ns[1]/=(f2->Integral(bound[0],bound[1])); |
325 |
> |
ns[1]*=nfac1; |
326 |
> |
|
327 |
> |
if (fileName.Contains("TandL") || fileName.Contains("011")) |
328 |
> |
cout << ">>> Loose Ns by usual integral = " << ns[1] << endl; |
329 |
> |
else |
330 |
> |
cout << ">>> Tight Ns by usual integral = " << ns[0] << endl; |
331 |
> |
|
332 |
|
delete [] x; |
333 |
|
delete [] w; |
334 |
|
|
337 |
|
ROOT::Math::GSLIntegrator ig(1.E-8,1.E-8,1000); |
338 |
|
ROOT::Math::WrappedTF1 wf(*g); |
339 |
|
ig.SetFunction(wf); |
340 |
< |
ns2 = ig.Integral(ax0,axf); |
341 |
< |
ns2/=(g->Integral(bx0,bxf)); |
340 |
> |
if (fileName.Contains("0053") || fileName.Contains("TandL")) |
341 |
> |
ns2 = ig.Integral(ax0,axf); |
342 |
> |
else if (fileName.Contains("011")) |
343 |
> |
ns2 = ig.Integral(ax0,loosecut); |
344 |
> |
|
345 |
> |
ns2/=(g->Integral(bound[0],bound[1])); |
346 |
|
ns2*=nfac1; |
347 |
< |
cout<<">>> Ns by MathMore integral = "<<ns2<<endl; |
348 |
< |
|
349 |
< |
cv->Update(); |
350 |
< |
|
351 |
< |
TPaveStats *p1 = (TPaveStats*)h_all->GetListOfFunctions()->FindObject("stats"); |
352 |
< |
p1->SetTextColor(kBlue); |
353 |
< |
p1->SetX1NDC(0.6); |
347 |
> |
cout<<">>> Ns by MathMore integral = "<<ns2<<endl; |
348 |
> |
|
349 |
> |
if(!dynamic){ |
350 |
> |
cv->Update(); |
351 |
> |
TPaveStats *p1 = (TPaveStats*)cv->GetPrimitive("stats"); |
352 |
> |
} |
353 |
> |
else { |
354 |
> |
h_all->Fit(s0,"0","",bound[0],bound[1]); |
355 |
> |
cv->Update(); |
356 |
> |
TPaveStats *p1 = (TPaveStats*)cv->GetPrimitive("stats"); |
357 |
> |
} |
358 |
> |
p1->SetName("Landau fit"); |
359 |
> |
TList *list = p1->GetListOfLines(); |
360 |
> |
TLatex *myt = new TLatex(0,0,"Landau fit"); |
361 |
> |
list->AddFirst(myt); |
362 |
> |
h_all->SetStats(0); |
363 |
> |
cv->Modified(); |
364 |
> |
|
365 |
> |
p1->SetTextFont(42); |
366 |
> |
p1->SetFillColor(0); |
367 |
> |
p1->SetFillStyle(0); |
368 |
> |
p1->SetBorderSize(0); |
369 |
> |
p1->SetX1NDC(0.65); |
370 |
|
p1->SetX2NDC(0.88); |
371 |
< |
p1->SetY1NDC(0.62); |
372 |
< |
p1->SetY2NDC(0.88); |
373 |
< |
p1->Draw(); |
371 |
> |
p1->SetY1NDC(0.65); |
372 |
> |
p1->SetY2NDC(0.85); |
373 |
> |
gPad->Update(); |
374 |
|
|
375 |
|
// Label histo |
376 |
< |
TLegend * leg1 = new TLegend(0.3,0.15,0.68,0.45); |
376 |
> |
TLegend * leg1 = new TLegend(0.25,0.65,0.5,0.85); |
377 |
> |
leg1->SetFillColor(0); |
378 |
> |
leg1->SetFillStyle(0); |
379 |
> |
leg1->AddEntry(f1,"Fit of all events in control region","l"); |
380 |
> |
leg1->AddEntry(f2,"Extrapolation to signal region","l"); |
381 |
|
leg1->AddEntry(h_all,"All events (S+B)"); |
382 |
|
leg1->AddEntry(h_qcd,"QCD events"); |
243 |
– |
leg1->AddEntry(f1,"Fit of all events in control region"); |
244 |
– |
leg1->AddEntry(f2,"Extrapolation to signal region"); |
383 |
|
leg1->Draw(); |
384 |
+ |
|
385 |
|
// Print results |
386 |
|
cout << "\n"; |
387 |
|
cout << ">>>>> Jet bin " << jbin << ":" << endl; |
388 |
< |
cout << ">>>>> Observed Ns = " << ns << endl; |
388 |
> |
cout << ">>>>> Bin number @ peak = " << nbMax << endl; |
389 |
> |
cout << ">>>>> bwidth = " << bwidth << endl; |
390 |
> |
if (dynamic) { |
391 |
> |
cout << ">>>>> First dynamic fit norm. chi2 = " << pass[0] << endl; |
392 |
> |
cout << ">>>>> Min dynamic norm. chi2 = " << pass[1] << endl; |
393 |
> |
cout << ">>>>> Last fitting region (bx0, bxf) = (" << bx0 << ", " << bxf << ")"<< endl; |
394 |
> |
cout << ">>>>> Best fitting region (bx0, bxf) = (" << bound[0] << ", " << bound[1] << ")"<< endl; |
395 |
> |
} |
396 |
> |
cout << ">>>>> Observed Ns = " << ns[0] << endl; |
397 |
|
cout << ">>>>> Expected Na = " << na << endl; |
398 |
< |
cout << "Deviation = " << (ns-na)/na*100.0 << " %" <<endl; |
399 |
< |
|
398 |
> |
cout << "Deviation = " << (ns[0]-na)/na*100.0 << " %" <<endl; |
399 |
> |
|
400 |
> |
if (fileName.Contains("TandL")) { |
401 |
> |
cout << "====================================" << endl; |
402 |
> |
cout << ">>>>> Observed Loose Ns = " << ns[1] << endl; |
403 |
> |
cout << ">>>>> Expected Loose Na = " << na1 << endl; |
404 |
> |
cout << "Deviation = " << (ns[1]-na1)/na1*100.0 << " %" <<endl; |
405 |
> |
} |
406 |
|
} |