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Revision: 1.5
Committed: Tue Jul 12 12:57:10 2011 UTC (13 years, 9 months ago) by buchmann
Content type: text/plain
Branch: MAIN
Changes since 1.4: +68 -0 lines
Log Message:
Now also supporting 2d draw commands

File Contents

# Content
1 #include <iostream>
2 #include <sstream>
3 #include <vector>
4 #include <utility>
5
6 #include <TFile.h>
7 #include <TTree.h>
8 #include <TH1.h>
9 #include <TH2.h>
10 #include <TCut.h>
11 #include <THStack.h>
12 #include <TColor.h>
13 #include <TCanvas.h>
14 #include <TError.h>
15 #include <TText.h>
16 #include <TLegend.h>
17 #include <TError.h>
18 #include <TTreeFormula.h>
19
20 #define SampleClassLoaded
21
22 #ifndef Verbosity
23 #define Verbosity 0
24 #endif
25 #ifndef HUSH
26 #define HUSH 1
27 #endif
28 #ifndef GeneralToolBoxLoaded
29 #include "GeneralToolBox.C"
30 #endif
31 using namespace std;
32
33 bool doesROOTFileExist(string filename);
34 bool addoverunderflowbins=false;
35 string treename="PFevents";
36
37 class sample
38 {
39 public:
40 string filename;
41 string samplename;
42 int Nentries;
43 float xs;//cross section
44 float weight;
45 bool is_data;
46 bool is_signal;
47 bool is_active;
48 int groupindex;
49 Color_t samplecolor;
50
51 TFile *tfile;
52 TTree *events;
53
54 sample(string m_filename,string m_samplename,int m_Nentries, float m_xs,bool is_data, bool m_is_signal, int m_groupindex, Color_t color);
55 void closeFile();
56 };
57
58 string write_mc_or_data(bool is_data)
59 {
60 if(is_data) return "data";
61 return "MC";
62 }
63
64 sample::sample(string m_filename, string m_samplename, int m_Nentries, float m_xs,bool m_is_data, bool m_is_signal, int m_groupindex, Color_t mycolor)
65 {
66 this->filename=m_filename;
67 this->samplename=m_samplename;
68 this->Nentries=m_Nentries;
69 this->xs=m_xs;
70 this->is_data=m_is_data;
71 this->is_signal=m_is_signal;
72 this->weight=(xs/(float)Nentries);
73 this->groupindex=m_groupindex;
74 this->is_active=true;
75 this->samplecolor=mycolor;
76 if(!doesROOTFileExist(this->filename)) {
77 stringstream message;
78 message << "The " << write_mc_or_data(is_data) << " sample " << this->samplename << " is invalid because the associated file path, " << this->filename << " is incorrect.";
79 write_error("Sample::Sample",message.str());
80 this->is_active=false;
81 }
82
83 if(doesROOTFileExist(this->filename)) {
84 //suppressing stupid 64/32 errors here (Warning in <TFile::ReadStreamerInfo>: /scratch/buchmann/MC_Spring11_PU_PF/TToBLNu_TuneZ2_t-channel_7TeV-madgraph.root: not a TStreamerInfo object)
85 Int_t currlevel=gErrorIgnoreLevel;
86 gErrorIgnoreLevel=5000;
87 this->tfile = new TFile(m_filename.c_str());
88 gErrorIgnoreLevel=currlevel;
89 this->events=(TTree*)(this->tfile)->Get(treename.c_str());
90 if(Verbosity>0) cout << "The " << write_mc_or_data(is_data) << " file " << this->filename << " has been added successfully to the list of samples. " << endl;
91 }
92 else {
93 this->is_active=false;
94 }
95
96 }
97
98 void sample::closeFile()
99 {
100 if(doesROOTFileExist(this->filename)) {
101 (this->tfile)->Close();
102 }
103 else {
104 cout << "SAMPLE " << this->samplename << " cannot be closed as the underlying file (" << this->filename << ") does not exist!" << endl;
105 this->is_active=false;
106 }
107 }
108
109 bool doesROOTFileExist(string filename)
110 {
111 //suppressing stupid 64/32 errors here (Warning in <TFile::ReadStreamerInfo>: /scratch/buchmann/MC_Spring11_PU_PF/TToBLNu_TuneZ2_t-channel_7TeV-madgraph.root: not a TStreamerInfo object)
112 Int_t currlevel=gErrorIgnoreLevel;
113 gErrorIgnoreLevel=5000;
114 TFile *f = new TFile(filename.c_str());
115
116 if (f->IsZombie()) {
117 cout << "Error opening file" << filename << endl;
118 return 0;
119 }
120 f->Close();
121 gErrorIgnoreLevel=currlevel;
122 return 1;
123 }
124 //********************************************************
125
126 TCut essentialcut("mll>0");
127
128 void setessentialcut(TCut ess) {
129 essentialcut=ess;
130 }
131
132 class samplecollection
133 {
134 public:
135 string name;
136 vector<sample> collection;
137 int nsamples;
138 int ndatasamples;
139 int nmcsamples;
140 int ngroups;
141
142 samplecollection(string m_name);
143 void AddSample(string m_filename,string m_samplename,int m_Nentries, float m_xs,bool is_data, bool m_is_signal, int groupindex, Color_t color);
144
145 //vector quantities
146 TH1F* Draw(string m_histoname,string m_var, vector<float> binning, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, vector<int> onlyindex, bool drawsignal);
147 TH1F* Draw(string m_histoname,string m_var, vector<float> binning, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, bool drawsignal);
148
149 //minx,maxs quantities
150 TH1F* Draw(string m_histoname,string m_var, int m_nbins, float m_minx, float m_maxx, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, bool drawsignal);
151 TH1F* Draw(string m_histoname,string m_var, int m_nbins, float m_minx, float m_maxx, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, vector<int> onlyindex, bool drawsignal);
152
153 TH2F* Draw(string m_histoname,string m_var, vector<float> binningx, vector<float> binningy, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, vector<int> onlyindex, bool drawsignal);
154
155 vector<float> get_optimal_binsize(string variable, TCut cut,int nbins, float low, float high);
156
157 THStack DrawStack(string m_histoname,string m_var, int m_nbins, float m_minx, float m_maxx, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, bool drawsignal);
158 vector<int> FindSample(string what);
159 void ListSamples();
160 bool do_sample(int thissample, vector<int> &selected_samples);
161 Color_t GetColor(string filename);
162 Color_t GetColor(int sampleindex);
163
164 TLegend* allbglegend(string title,float x, float y);
165 TLegend* allbglegend(string title, TH1F *data, float x, float y);
166
167 void PickUpFromThisFile(int isamp, string cut, vector<string> &output, vector<string> &pickupfile);
168 void PickUpEvents(string cut);
169 };
170
171 samplecollection::samplecollection(string m_name)
172 {
173 this->name=m_name;
174 if(Verbosity>0) cout << "Initiated sample collection " << this->name << " " << endl;
175 }
176
177 void samplecollection::ListSamples()
178 {
179 cout << "---------------------------------------------------------------------------------------------------" << endl;
180 cout << "Listing all " << this->nsamples << " sample(s) of the sample collection called " << this->name << " : " << endl;
181 if(this->ndatasamples>0) {
182 cout << "Data sample(s): " << endl;
183 for (int isamp=0;isamp<this->collection.size();isamp++)
184 {
185 if((this->collection)[isamp].is_data) cout << " - " << (this->collection)[isamp].samplename << " from " << (this->collection)[isamp].filename << endl;
186 }
187 }
188 if(this->nmcsamples>0) {
189 cout << "MC sample(s): " << endl;
190 for (int isamp=0;isamp<this->collection.size();isamp++)
191 {
192 if(!(this->collection)[isamp].is_data) cout << " - " << (this->collection)[isamp].samplename << " from " << (this->collection)[isamp].filename << endl;
193 }
194 }
195 cout << "---------------------------------------------------------------------------------------------------" << endl;
196 }
197
198 void samplecollection::AddSample(string m_filename,string m_samplename,int m_Nentries, float m_xs,bool is_data, bool m_is_signal, int groupindex, Color_t newcolor)
199 {
200 sample NewSample(m_filename,m_samplename,m_Nentries,m_xs,is_data,m_is_signal,groupindex,newcolor);
201 (this->collection).push_back(NewSample);
202 if((this->collection).size()==1) {
203 this->nmcsamples=0;
204 this->ndatasamples=0;
205 this->nsamples=0;
206 this->ngroups=0;
207 }
208 if(groupindex>this->ngroups) this->ngroups=groupindex;
209 if(is_data) this->ndatasamples++;
210 else this->nmcsamples++;
211 this->nsamples=this->collection.size();
212 }
213
214 bool samplecollection::do_sample(int thissample, vector<int> &selected_samples)
215 {
216 bool drawit=false;
217 for(int isel=0;isel<selected_samples.size();isel++)
218 {
219 if(selected_samples[isel]==thissample) {
220 drawit=true;
221 break;
222 }
223 }
224 return drawit;
225 }
226
227 TH1F* samplecollection::Draw(string m_histoname,string m_var, int m_nbins, float m_minx, float m_maxx, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, bool drawsignal=false)
228 {
229 vector<int> emptyvector;
230 TH1F *histo = this->Draw(m_histoname,m_var, m_nbins, m_minx, m_maxx, m_xlabel, m_ylabel, Cut, m_is_data, luminosity,emptyvector,drawsignal);
231 return histo;
232 }
233
234 TH1F* samplecollection::Draw(string m_histoname,string m_var, vector<float> binning, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, bool drawsignal=false)
235 {
236 vector<int> emptyvector;
237 TH1F *histo = this->Draw(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity,emptyvector,drawsignal);
238 return histo;
239 }
240
241 TH1F* samplecollection::Draw(string m_histoname,string m_var, vector<float> binning, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, vector<int> onlyindex, bool drawsignal=false) {
242 if(Verbosity>0) cout << endl << endl;
243 if(Verbosity>0) cout << "-------------------------------------------------------------------------------------" << endl;
244 if(Verbosity>0) cout << "histoname : " << m_histoname << " , m_var = " << m_var << ", m_xlabel=" << m_xlabel << " m_ylabel=" << m_ylabel << " m_is_data = " << m_is_data << " lumi = " << luminosity << " onlyindex size: " << onlyindex.size() << endl;
245 if(HUSH==0) cout << "Drawing histo called " << m_histoname << "... " << endl;
246 bool do_only_selected_samples=false;
247 if(onlyindex.size()>0&&onlyindex[0]!=-1) {
248 if(Verbosity>0) {cout << "Requested to only draw sample corresponding to the following sample(s) : " << endl;}
249 for(int is=0;is<onlyindex.size();is++) {
250 if(Verbosity>0) cout << " - " << (this->collection)[onlyindex[is]].filename << " (sample index: " << onlyindex[is] << ")" << endl;
251 }
252 do_only_selected_samples=true;
253 }
254 if(onlyindex.size()==1&&onlyindex[0]==-1) {
255 do_only_selected_samples=true; // this is the special case when we request a non-existing sample - we shouldn't draw anything then.
256 onlyindex.clear();
257 }
258 stringstream h_histoname;
259 h_histoname<<"h_"<<m_histoname;
260 float binningarray[binning.size()+1];
261 for(int i=0;i<binning.size();i++) {binningarray[i]=binning[i];}
262 TH1F *histo = new TH1F(m_histoname.c_str(),"",binning.size()-1,binningarray);
263 histo->Sumw2();
264
265 stringstream drawthis;
266 drawthis<<m_var<<">>tempdrawhisto";
267
268 for (unsigned int isample=0;isample<(this->collection).size();isample++) {
269 bool use_this_sample=false;
270 if(!(this->collection)[isample].is_active) continue; // skip inactive samples right away
271 if(((this->collection)[isample].is_data==m_is_data)&&(!do_only_selected_samples)) {
272 if(drawsignal==false&&(this->collection)[isample].is_signal==true) continue;
273 use_this_sample=true;
274 }
275 if(do_only_selected_samples&&this->do_sample(isample,onlyindex)) {
276 use_this_sample=true;
277 }
278 TH1F *tempdrawhisto = new TH1F("tempdrawhisto","tempdrawhisto",binning.size()-1,binningarray);
279 tempdrawhisto->Sumw2();
280 if(use_this_sample) {
281 if(Verbosity>0) cout << "[samplecollection::Draw] : Added contribution from sample " << (this->collection)[isample].samplename << endl;
282 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*"weight");//this weight is based on PU etc. not XS
283 if(addoverunderflowbins) {
284 //now also adding the overflow & underflow bins:
285 tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
286 tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
287 tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
288 tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
289 }
290
291 if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));//weight applied here is XS & N(entries)
292 histo->Add(tempdrawhisto);
293 }
294 tempdrawhisto->Delete();
295 }//end of loop over isample
296 if(Verbosity>0) cout << "Histo has been filled and now contains " << histo->Integral() << " points (integral)" << endl;
297 histo->GetXaxis()->SetTitle(m_xlabel.c_str());
298 histo->GetYaxis()->SetTitle(m_ylabel.c_str());
299 histo->GetXaxis()->CenterTitle();
300 histo->GetYaxis()->CenterTitle();
301 if(do_only_selected_samples) histo->SetLineColor(this->GetColor(onlyindex[0]));
302 return histo;
303 }
304
305 TH2F* samplecollection::Draw(string m_histoname,string m_var, vector<float> binningx, vector<float> binningy, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, vector<int> onlyindex, bool drawsignal=false) {
306 if(Verbosity>0) cout << endl << endl;
307 if(Verbosity>0) cout << "-------------------------------------------------------------------------------------" << endl;
308 if(Verbosity>0) cout << "histoname : " << m_histoname << " , m_var = " << m_var << ", m_xlabel=" << m_xlabel << " m_ylabel=" << m_ylabel << " m_is_data = " << m_is_data << " lumi = " << luminosity << " onlyindex size: " << onlyindex.size() << endl;
309 if(HUSH==0) cout << "Drawing histo called " << m_histoname << "... " << endl;
310 bool do_only_selected_samples=false;
311 if(onlyindex.size()>0&&onlyindex[0]!=-1) {
312 if(Verbosity>0) {cout << "Requested to only draw sample corresponding to the following sample(s) : " << endl;}
313 for(int is=0;is<onlyindex.size();is++) {
314 if(Verbosity>0) cout << " - " << (this->collection)[onlyindex[is]].filename << " (sample index: " << onlyindex[is] << ")" << endl;
315 }
316 do_only_selected_samples=true;
317 }
318 if(onlyindex.size()==1&&onlyindex[0]==-1) {
319 do_only_selected_samples=true; // this is the special case when we request a non-existing sample - we shouldn't draw anything then.
320 onlyindex.clear();
321 }
322 stringstream h_histoname;
323 h_histoname<<"h_"<<m_histoname;
324 float binningarray[binningx.size()+1];
325 float binningyarray[binningy.size()+1];
326 for(int i=0;i<binningx.size();i++) {binningarray[i]=binningx[i];binningyarray[i]=binningy[i];}
327 TH2F *histo = new TH2F(m_histoname.c_str(),"",binningx.size()-1,binningarray,binningy.size(),binningyarray);
328 histo->Sumw2();
329
330 stringstream drawthis;
331 drawthis<<m_var<<">>tempdrawhisto";
332
333 for (unsigned int isample=0;isample<(this->collection).size();isample++) {
334 bool use_this_sample=false;
335 if(!(this->collection)[isample].is_active) continue; // skip inactive samples right away
336 if(((this->collection)[isample].is_data==m_is_data)&&(!do_only_selected_samples)) {
337 if(drawsignal==false&&(this->collection)[isample].is_signal==true) continue;
338 use_this_sample=true;
339 }
340 if(do_only_selected_samples&&this->do_sample(isample,onlyindex)) {
341 use_this_sample=true;
342 }
343 TH2F *tempdrawhisto = new TH2F("tempdrawhisto","tempdrawhisto",binningx.size()-1,binningarray,binningy.size()-1,binningyarray);
344 tempdrawhisto->Sumw2();
345 if(use_this_sample) {
346 if(Verbosity>0) cout << "[samplecollection::Draw] : Added contribution from sample " << (this->collection)[isample].samplename << endl;
347 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*"weight");//this weight is based on PU etc. not XS
348 if(addoverunderflowbins) {
349 //now also adding the overflow & underflow bins:
350 tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
351 tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
352 tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
353 tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
354 }
355
356 if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));//weight applied here is XS & N(entries)
357 histo->Add(tempdrawhisto);
358 }
359 tempdrawhisto->Delete();
360 }//end of loop over isample
361 if(Verbosity>0) cout << "Histo has been filled and now contains " << histo->Integral() << " points (integral)" << endl;
362 histo->GetXaxis()->SetTitle(m_xlabel.c_str());
363 histo->GetYaxis()->SetTitle(m_ylabel.c_str());
364 histo->GetXaxis()->CenterTitle();
365 histo->GetYaxis()->CenterTitle();
366 if(do_only_selected_samples) histo->SetLineColor(this->GetColor(onlyindex[0]));
367 return histo;
368 }
369
370
371 TH1F* samplecollection::Draw(string m_histoname,string m_var, int m_nbins, float m_minx, float m_maxx, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, vector<int> onlyindex, bool drawsignal=false)
372 {
373 vector<float> binning;
374 for(int i=0;i<=m_nbins;i++)
375 {
376 binning.push_back(((float)(m_maxx-m_minx)/((float)m_nbins))*i+m_minx);
377 }
378
379 TH1F *histo = this->Draw(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity, onlyindex,drawsignal);
380 return histo;
381 }
382 THStack samplecollection::DrawStack(string m_histoname,string m_var, int m_nbins, float m_minx, float m_maxx, string m_xlabel, string m_ylabel, TCut Cut, bool m_is_data, float luminosity, bool drawsignal=false)
383 {
384 stringstream h_histoname;
385 h_histoname<<"h_"<<m_histoname;
386 THStack thestack("thestack",m_histoname.c_str());
387
388 stringstream drawthis;
389 drawthis<<m_var<<">>tempdrawhisto";
390
391 TH1F *histogroups[this->ngroups+1];
392 int bookedhistos[this->ngroups+1];
393 for(int ih=0;ih<=this->ngroups;ih++) bookedhistos[ih]=0;
394
395 for (unsigned int isample=0;isample<(this->collection).size();isample++) {
396 if(!drawsignal&&(this->collection)[isample].is_signal) continue;
397 if((this->collection)[isample].is_active&&(this->collection)[isample].is_data==m_is_data) {//fills mc if we want mc, else fills data.
398 TH1F *tempdrawhisto = new TH1F("tempdrawhisto","",m_nbins,m_minx,m_maxx);
399 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*"weight");
400
401 if(addoverunderflowbins) {
402 //now also adding the overflow & underflow bins:
403 tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
404 tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
405 tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
406 tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
407 }
408
409 if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));
410 tempdrawhisto->SetFillColor(this->GetColor(isample));
411 if(bookedhistos[(this->collection)[isample].groupindex]==0) {
412 tempdrawhisto->SetName(GetNumericHistoName().c_str());
413 histogroups[(this->collection)[isample].groupindex]=(TH1F*)tempdrawhisto->Clone();
414 bookedhistos[(this->collection)[isample].groupindex]=1;
415 }
416 else
417 {
418 histogroups[(this->collection)[isample].groupindex]->Add(tempdrawhisto);
419 bookedhistos[(this->collection)[isample].groupindex]++;
420 }
421 tempdrawhisto->Delete();
422 }
423 }
424 vector<int> ordered_indices;
425 vector<float> ordered_integrals;
426
427 for(int ig=0;ig<=this->ngroups;ig++) {
428 if(bookedhistos[ig]>0) {
429 ordered_indices.push_back(ig);
430 ordered_integrals.push_back(histogroups[ig]->Integral());
431 }
432 }
433
434 /*
435 bubbleSort(ordered_integrals,ordered_indices);
436 // for(int index=ordered_indices.size()-1;index>=0;index--) {
437 for(int index=0;index<ordered_indices.size();index++) {
438 thestack.Add(histogroups[ordered_indices[index]]);
439 }
440 */
441 for(int index=0;index<ordered_indices.size();index++) {
442 thestack.Add(histogroups[ordered_indices[index]]);
443 }
444 return thestack;
445 }
446
447
448 vector<int> samplecollection::FindSample(string what)
449 {
450 vector<int> hitcollection;
451 for(unsigned int isam=0;isam<(this->collection).size();isam++)
452 {
453 if(((this->collection)[isam].filename).find(what)!=string::npos) {
454 hitcollection.push_back(isam);
455 }
456 else {
457 }
458 }
459 if(hitcollection.size()==0) hitcollection.push_back(-1);
460 return hitcollection;
461 }
462
463 Color_t samplecollection::GetColor(string filename) {
464 vector<int> corresponding_samples = this->FindSample(filename);
465 if(corresponding_samples.size()>0) return this->GetColor(corresponding_samples[0]);
466 return kBlack;
467 }
468
469 Color_t samplecollection::GetColor(int sampleindex) {
470 return this->collection[sampleindex].samplecolor;
471 }
472
473 TLegend* samplecollection::allbglegend(string title, TH1F *data,float posx=0.65, float posy=0.60) {
474 // TLegend *leg = new TLegend(0.65,0.60,0.89,0.77);
475 TLegend *leg = new TLegend(posx,posy,0.89,0.77);
476 if(title!="") leg->SetHeader(title.c_str());
477 if(data->GetName()!="nothing") leg->AddEntry(data,"Data","p");
478 leg->SetFillColor(kWhite);
479 leg->SetBorderSize(0);
480 leg->SetLineColor(kWhite);
481
482 TH1F *fakehistos[(this->collection).size()];
483 bool donealready[(this->collection).size()];
484 for(int i=0;i<(this->collection).size();i++) donealready[i]=false;
485 for(int isample=0;isample<(this->collection).size();isample++) {
486 if((this->collection)[isample].is_data||(this->collection)[isample].is_signal) continue;
487
488 if(!donealready[(this->collection)[isample].groupindex]) {
489 fakehistos[(this->collection)[isample].groupindex] = new TH1F(GetNumericHistoName().c_str(),"",1,0,1);
490 fakehistos[(this->collection)[isample].groupindex]->Fill(1);
491 fakehistos[(this->collection)[isample].groupindex]->SetFillColor(this->GetColor(isample));
492 leg->AddEntry(fakehistos[(this->collection)[isample].groupindex],((this->collection)[isample].samplename).c_str(),"f");
493 donealready[(this->collection)[isample].groupindex]=true;
494 }
495 }
496 DrawPrelim();
497 leg->SetTextFont(42);
498 return leg;
499 }
500
501 TLegend* samplecollection::allbglegend(string title="",float posx=0.65, float posy=0.60) {
502 Int_t currlevel=gErrorIgnoreLevel;
503 gErrorIgnoreLevel=5000;
504 TH1F *blub = new TH1F("nothing","nothing",1,0,1);
505 gErrorIgnoreLevel=currlevel;//we know this possibly replaces a previous histo, but we don't care since it's fake anyway.
506 return this->allbglegend(title,blub,posx,posy);
507 }
508
509
510 void set_treename(string treen="events") {
511 cout << "Treename has been set to " << treen << endl;
512 if(treen=="PFevents"||treen=="events") treename=treen;
513 else write_error("sample::set_treename","Setting the treename failed as you provided an invalid tree name.");
514 }
515
516 vector<float> samplecollection::get_optimal_binsize(string variable, TCut cut,int nbins, float low, float high) {
517 TH1F *histo = this->Draw("histo",variable,5000,low,high, "finding_optimal_binsize", "events", cut,0,1000);
518 float eventsperbin=histo->Integral()/nbins;
519 vector<float> binning;
520 binning.push_back(high);
521 float runningsum=0;
522 for(int i=histo->GetNbinsX();i>0;i--) {
523 runningsum+=histo->GetBinContent(i);
524 if(TMath::Abs(runningsum-eventsperbin)<0.05*eventsperbin||runningsum>eventsperbin) {
525 binning.push_back(histo->GetBinLowEdge(i));
526 runningsum=0;
527 }
528 }
529 if(runningsum>0) binning.push_back(low);
530 for(int i=0;i<int(binning.size()/2);i++) {
531 float temp=binning[i];
532 binning[i]=binning[binning.size()-1-i];
533 binning[binning.size()-1-i]=temp;
534 }
535
536 return binning;
537
538 }
539
540 void samplecollection::PickUpFromThisFile(int isamp, string cut, vector<string> &output, vector<string> &pickupfile) {
541 int lumi,eventNum,runNum;
542 float jzb[30];
543 (this->collection)[isamp].events->SetBranchAddress("jzb",&jzb);
544 (this->collection)[isamp].events->SetBranchAddress("lumi",&runNum);
545 (this->collection)[isamp].events->SetBranchAddress("eventNum",&eventNum);
546 (this->collection)[isamp].events->SetBranchAddress("lumi",&lumi);
547 (this->collection)[isamp].events->SetBranchAddress("runNum",&runNum);
548
549 TTreeFormula *select = new TTreeFormula("select", "pfJetGoodNum>=3&&jzb[1]>100&&jzb[1]<150&&id1==id2", (this->collection)[isamp].events);
550 for (Int_t entry = 0 ; entry < (this->collection)[isamp].events->GetEntries() ; entry++) {
551 (this->collection)[isamp].events->LoadTree(entry);
552 if (select->EvalInstance()) {
553 (this->collection)[isamp].events->GetEntry(entry);
554 cout << runNum << ":" << lumi << ":" << eventNum << endl;
555 }
556 }
557 }
558
559
560
561 void samplecollection::PickUpEvents(string cut) {
562 vector<string> output;
563 vector<string> pickupfile;
564 for (int isamp=0;isamp<this->collection.size();isamp++)
565 {
566 if((this->collection)[isamp].is_data) {
567 //we have a data sample !
568 this->PickUpFromThisFile(isamp,cut,output,pickupfile);
569 }
570 }
571 //do something with output and of course the pickup file!
572 }
573
574
575 void switch_overunderflow(bool newpos=false) {
576 addoverunderflowbins=newpos;
577 }