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root/cvsroot/UserCode/cbrown/AnalysisFramework/Plotting/Modules/SampleClass.C
Revision: 1.21
Committed: Mon Oct 24 15:05:37 2011 UTC (13 years, 6 months ago) by buchmann
Content type: text/plain
Branch: MAIN
CVS Tags: cbaf_4_98ifb_paper, beforeFR20120418, cbaf_4p7ifb, HEAD
Changes since 1.20: +12 -2 lines
Log Message:
Upgrade from HoneyPot to IceCreamBowl: merged in offpeak stuff, different warning color for frederic, saving to rootfile, only 3 attempts when computing limits and much, much more

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 long 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,long 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, long 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->groupindex=m_groupindex;
73 this->is_active=true;
74 this->samplecolor=mycolor;
75 if(!doesROOTFileExist(this->filename)) {
76 stringstream message;
77 message << "The " << write_mc_or_data(is_data) << " sample " << this->samplename << " is invalid because the associated file path, " << this->filename << " is incorrect.";
78 write_error("Sample::Sample",message.str());
79 this->is_active=false;
80 }
81
82 if(doesROOTFileExist(this->filename)) {
83 //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)
84 Int_t currlevel=gErrorIgnoreLevel;
85 gErrorIgnoreLevel=5000;
86 this->tfile = new TFile(m_filename.c_str());
87 gErrorIgnoreLevel=currlevel;
88 this->events=(TTree*)(this->tfile)->Get(treename.c_str());
89 if(Verbosity>0) dout << "The " << write_mc_or_data(is_data) << " file " << this->filename << " has been added successfully to the list of samples. " << endl;
90 long long measured_nevents=(this->events)->GetEntries();
91 if(((this->Nentries>1)||(this->Nentries==0))&measured_nevents!=this->Nentries) {
92 //special cases: m_Nentries=1 : we want to give each event the full weight (->scans!)
93 // m_Nentries=0: detect the number of events and set the nevents automatically
94
95 stringstream warning;
96 warning << "Detected incorrect number of events in sample initialization of sample " << m_filename << " (detected Nevents: " << measured_nevents << " , definition claims: " << this->Nentries << "; will use measured number of events. If you want to use this algorithm to set the number of events anyway, set the number of events to 0.";
97 if(m_Nentries>1) write_warning(__FUNCTION__,warning.str());
98 this->Nentries=measured_nevents;
99 }
100 this->weight=(xs/(float)Nentries);
101 }
102 else {
103 this->is_active=false;
104 }
105
106 }
107
108 void sample::closeFile()
109 {
110 if(doesROOTFileExist(this->filename)) {
111 (this->tfile)->Close();
112 }
113 else {
114 dout << "SAMPLE " << this->samplename << " cannot be closed as the underlying file (" << this->filename << ") does not exist!" << endl;
115 this->is_active=false;
116 }
117 }
118
119 bool doesROOTFileExist(string filename)
120 {
121 //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)
122 Int_t currlevel=gErrorIgnoreLevel;
123 gErrorIgnoreLevel=5000;
124 TFile *f = new TFile(filename.c_str());
125
126 if (f->IsZombie()) {
127 dout << "Error opening file" << filename << endl;
128 return 0;
129 }
130 f->Close();
131 gErrorIgnoreLevel=currlevel;
132 return 1;
133 }
134 //********************************************************
135
136 TCut essentialcut("mll>0");
137 // The following cut (cutWeight) will reweight all the events: use "weight" to correct MC for pileUP, "1.0" otherwise
138 TCut cutWeight("weight");
139
140 void setessentialcut(TCut ess) {
141 essentialcut=ess;
142 }
143
144 class samplecollection
145 {
146 public:
147 string name;
148 vector<sample> collection;
149 int nsamples;
150 int ndatasamples;
151 int nmcsamples;
152 int ngroups;
153
154 samplecollection(string m_name);
155 void AddSample(string m_filename,string m_samplename,long m_Nentries, float m_xs,bool is_data, bool m_is_signal, int groupindex, Color_t color);
156
157 //vector quantities
158 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);
159 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);
160
161 //minx,maxs quantities
162 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);
163 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);
164
165 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);
166
167 vector<float> get_optimal_binsize(string variable, TCut cut,int nbins, float low, float high);
168
169 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);
170 THStack DrawStack(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);
171 vector<int> FindSample(string what);
172 void ListSamples();
173 bool do_sample(int thissample, vector<int> &selected_samples);
174 Color_t GetColor(string filename);
175 Color_t GetColor(int sampleindex);
176
177 TLegend* allbglegend(string title,float x, float y);
178 TLegend* allbglegend(string title, TH1F *data, float x, float y);
179
180 void PickUpFromThisFile(int isamp, string cut, vector<string> &output, vector<string> &pickupfile);
181 void PickUpEvents(string cut);
182 string find_units(string&);
183
184 void RemoveLastSample();
185 };
186
187 samplecollection::samplecollection(string m_name)
188 {
189 this->name=m_name;
190 if(Verbosity>0) dout << "Initiated sample collection " << this->name << " " << endl;
191 }
192
193 void samplecollection::ListSamples()
194 {
195 dout << "---------------------------------------------------------------------------------------------------" << endl;
196 dout << "Listing all " << this->nsamples << " sample(s) of the sample collection called " << this->name << " : " << endl;
197 if(this->ndatasamples>0) {
198 dout << "Data sample(s): " << endl;
199 for (int isamp=0;isamp<this->collection.size();isamp++)
200 {
201 if((this->collection)[isamp].is_data) dout << " - " << (this->collection)[isamp].samplename << " from " << (this->collection)[isamp].filename << endl;
202 }
203 }
204 if(this->nmcsamples>0) {
205 dout << "MC sample(s): " << endl;
206 for (int isamp=0;isamp<this->collection.size();isamp++)
207 {
208 if(!(this->collection)[isamp].is_data) dout << " - " << (this->collection)[isamp].samplename << " from " << (this->collection)[isamp].filename << endl;
209 }
210 }
211 dout << "---------------------------------------------------------------------------------------------------" << endl;
212 }
213
214 void samplecollection::AddSample(string m_filename,string m_samplename,long m_Nentries, float m_xs,bool is_data, bool m_is_signal, int groupindex, Color_t newcolor)
215 {
216 sample NewSample(m_filename,m_samplename,m_Nentries,m_xs,is_data,m_is_signal,groupindex,newcolor);
217 (this->collection).push_back(NewSample);
218 if((this->collection).size()==1) {
219 this->nmcsamples=0;
220 this->ndatasamples=0;
221 this->nsamples=0;
222 this->ngroups=0;
223 }
224 if(groupindex>this->ngroups) this->ngroups=groupindex;
225 if(is_data) this->ndatasamples++;
226 else this->nmcsamples++;
227 this->nsamples=this->collection.size();
228 }
229
230 bool samplecollection::do_sample(int thissample, vector<int> &selected_samples)
231 {
232 bool drawit=false;
233 for(int isel=0;isel<selected_samples.size();isel++)
234 {
235 if(selected_samples[isel]==thissample) {
236 drawit=true;
237 break;
238 }
239 }
240 return drawit;
241 }
242
243 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)
244 {
245 vector<int> emptyvector;
246 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);
247 return histo;
248 }
249
250 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)
251 {
252 vector<int> emptyvector;
253 TH1F *histo = this->Draw(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity,emptyvector,drawsignal);
254 return histo;
255 }
256
257 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) {
258 if(Verbosity>0) dout << endl << endl;
259 if(Verbosity>0) dout << "-------------------------------------------------------------------------------------" << endl;
260 if(Verbosity>0) dout << "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;
261 if(HUSH==0) dout << "Drawing histo called " << m_histoname << "... " << endl;
262 bool do_only_selected_samples=false;
263 if(onlyindex.size()>0&&onlyindex[0]!=-1) {
264 if(Verbosity>0) {dout << "Requested to only draw sample corresponding to the following sample(s) : " << endl;}
265 for(int is=0;is<onlyindex.size();is++) {
266 if(Verbosity>0) dout << " - " << (this->collection)[onlyindex[is]].filename << " (sample index: " << onlyindex[is] << ")" << endl;
267 }
268 do_only_selected_samples=true;
269 }
270 if(onlyindex.size()==1&&onlyindex[0]==-1) {
271 do_only_selected_samples=true; // this is the special case when we request a non-existing sample - we shouldn't draw anything then.
272 onlyindex.clear();
273 }
274 stringstream h_histoname;
275 h_histoname<<"h_"<<m_histoname;
276 float binningarray[binning.size()+1];
277 for(int i=0;i<binning.size();i++) {binningarray[i]=binning[i];}
278 TH1F *histo = new TH1F(m_histoname.c_str(),"",binning.size()-1,binningarray);
279 histo->Sumw2();
280
281 stringstream drawthis;
282 drawthis<<m_var<<">>tempdrawhisto";
283
284 for (unsigned int isample=0;isample<(this->collection).size();isample++) {
285 bool use_this_sample=false;
286 if(!(this->collection)[isample].is_active) continue; // skip inactive samples right away
287 if(((this->collection)[isample].is_data==m_is_data)&&(!do_only_selected_samples)) {
288 if(drawsignal==false&&(this->collection)[isample].is_signal==true) continue;
289 use_this_sample=true;
290 }
291 if(do_only_selected_samples&&this->do_sample(isample,onlyindex)) {
292 use_this_sample=true;
293 }
294 TH1F *tempdrawhisto = new TH1F("tempdrawhisto","tempdrawhisto",binning.size()-1,binningarray);
295 tempdrawhisto->Sumw2();
296 if(use_this_sample) {
297 if(Verbosity>0) dout << "[samplecollection::Draw] : Added contribution from sample " << (this->collection)[isample].samplename << endl;
298 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);//this weight is based on PU etc. not XS
299 if(addoverunderflowbins) {
300 //now also adding the overflow & underflow bins:
301 tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1)+tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()));
302 tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
303 tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0)+tempdrawhisto->GetBinContent(1));
304 tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
305 }
306
307 if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));//weight applied here is XS & N(entries)
308 histo->Add(tempdrawhisto);
309 }
310 tempdrawhisto->Delete();
311 }//end of loop over isample
312 if(Verbosity>0) dout << "Histo has been filled and now contains " << histo->Integral() << " points (integral)" << endl;
313 histo->GetXaxis()->SetTitle(m_xlabel.c_str());
314 // Try to add bin width information: look for units in m_xlabel
315 string units = find_units(m_xlabel);
316 if ( units.length()>0 ) {
317 stringstream ylabel;
318 ylabel << m_ylabel << " / " << histo->GetBinWidth(1) << " " << units;
319 histo->GetYaxis()->SetTitle( ylabel.str().c_str() );
320 } else {
321 histo->GetYaxis()->SetTitle(m_ylabel.c_str());
322 }
323 histo->GetXaxis()->CenterTitle();
324 histo->GetYaxis()->CenterTitle();
325 if(do_only_selected_samples) histo->SetLineColor(this->GetColor(onlyindex[0]));
326 return histo;
327 }
328
329 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) {
330 if(Verbosity>0) dout << endl << endl;
331 if(Verbosity>0) dout << "-------------------------------------------------------------------------------------" << endl;
332 if(Verbosity>0) dout << "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;
333 if(HUSH==0) dout << "Drawing histo called " << m_histoname << "... " << endl;
334 bool do_only_selected_samples=false;
335 if(onlyindex.size()>0&&onlyindex[0]!=-1) {
336 if(Verbosity>0) {dout << "Requested to only draw sample corresponding to the following sample(s) : " << endl;}
337 for(int is=0;is<onlyindex.size();is++) {
338 if(Verbosity>0) dout << " - " << (this->collection)[onlyindex[is]].filename << " (sample index: " << onlyindex[is] << ")" << endl;
339 }
340 do_only_selected_samples=true;
341 }
342 if(onlyindex.size()==1&&onlyindex[0]==-1) {
343 do_only_selected_samples=true; // this is the special case when we request a non-existing sample - we shouldn't draw anything then.
344 onlyindex.clear();
345 }
346 stringstream h_histoname;
347 h_histoname<<"h_"<<m_histoname;
348 float binningarray[binningx.size()+1];
349 float binningyarray[binningy.size()+1];
350 for(int i=0;i<binningx.size();i++) {binningarray[i]=binningx[i];binningyarray[i]=binningy[i];}
351 TH2F *histo = new TH2F(m_histoname.c_str(),"",binningx.size()-1,binningarray,binningy.size(),binningyarray);
352 histo->Sumw2();
353
354 stringstream drawthis;
355 drawthis<<m_var<<">>tempdrawhisto";
356
357 for (unsigned int isample=0;isample<(this->collection).size();isample++) {
358 bool use_this_sample=false;
359 if(!(this->collection)[isample].is_active) continue; // skip inactive samples right away
360 if(((this->collection)[isample].is_data==m_is_data)&&(!do_only_selected_samples)) {
361 if(drawsignal==false&&(this->collection)[isample].is_signal==true) continue;
362 use_this_sample=true;
363 }
364 if(do_only_selected_samples&&this->do_sample(isample,onlyindex)) {
365 use_this_sample=true;
366 }
367 TH2F *tempdrawhisto = new TH2F("tempdrawhisto","tempdrawhisto",binningx.size()-1,binningarray,binningy.size()-1,binningyarray);
368 tempdrawhisto->Sumw2();
369 if(use_this_sample) {
370 if(Verbosity>0) dout << "[samplecollection::Draw] : Added contribution from sample " << (this->collection)[isample].samplename << endl;
371 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);//this weight is based on PU etc. not XS
372 if(addoverunderflowbins) {
373 //now also adding the overflow & underflow bins:
374 tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1)+tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()));
375 tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
376 tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0)+tempdrawhisto->GetBinContent(1));
377 tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
378 }
379
380 if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));//weight applied here is XS & N(entries)
381 histo->Add(tempdrawhisto);
382 }
383 tempdrawhisto->Delete();
384 }//end of loop over isample
385 if(Verbosity>0) dout << "Histo has been filled and now contains " << histo->Integral() << " points (integral)" << endl;
386 histo->GetXaxis()->SetTitle(m_xlabel.c_str());
387 histo->GetYaxis()->SetTitle(m_ylabel.c_str());
388 histo->GetXaxis()->CenterTitle();
389 histo->GetYaxis()->CenterTitle();
390 if(do_only_selected_samples) histo->SetLineColor(this->GetColor(onlyindex[0]));
391 return histo;
392 }
393
394
395 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)
396 {
397 vector<float> binning;
398 for(int i=0;i<=m_nbins;i++)
399 {
400 binning.push_back(((float)(m_maxx-m_minx)/((float)m_nbins))*i+m_minx);
401 }
402
403 TH1F *histo = this->Draw(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity, onlyindex,drawsignal);
404 return histo;
405 }
406
407 THStack samplecollection::DrawStack(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) {
408 stringstream h_histoname;
409 h_histoname<<"h_"<<m_histoname;
410 THStack thestack("thestack",m_histoname.c_str());
411
412 stringstream drawthis;
413 drawthis<<m_var<<">>tempdrawhisto";
414
415 TH1F *histogroups[this->ngroups+1];
416 int bookedhistos[this->ngroups+1];
417 for(int ih=0;ih<=this->ngroups;ih++) bookedhistos[ih]=0;
418
419 float binningarray[binning.size()+1];
420 for(int i=0;i<binning.size();i++) {binningarray[i]=binning[i];}
421
422 for (unsigned int isample=0;isample<(this->collection).size();isample++) {
423 if(!drawsignal&&(this->collection)[isample].is_signal) continue;
424 if((this->collection)[isample].is_active&&(this->collection)[isample].is_data==m_is_data) {//fills mc if we want mc, else fills data.
425 TH1F *tempdrawhisto = new TH1F("tempdrawhisto","",binning.size()-1,binningarray);
426 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);
427
428 if(addoverunderflowbins) {
429 //now also adding the overflow & underflow bins:
430 tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1)+tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()));
431 // tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()))); // errors not necessary for stack!
432 tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0)+tempdrawhisto->GetBinContent(1));
433 // tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1))); // errors not necessary for stack!
434 }
435
436 if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));
437 tempdrawhisto->SetFillColor(this->GetColor(isample));
438 if(bookedhistos[(this->collection)[isample].groupindex]==0) {
439 tempdrawhisto->SetName(GetNumericHistoName().c_str());
440 histogroups[(this->collection)[isample].groupindex]=(TH1F*)tempdrawhisto->Clone();
441 bookedhistos[(this->collection)[isample].groupindex]=1;
442 }
443 else
444 {
445 histogroups[(this->collection)[isample].groupindex]->Add(tempdrawhisto);
446 bookedhistos[(this->collection)[isample].groupindex]++;
447 }
448 tempdrawhisto->Delete();
449 }
450 }
451 vector<int> ordered_indices;
452 vector<float> ordered_integrals;
453
454 for(int ig=0;ig<=this->ngroups;ig++) {
455 if(bookedhistos[ig]>0) {
456 ordered_indices.push_back(ig);
457 ordered_integrals.push_back(histogroups[ig]->Integral());
458 }
459 }
460
461 /*
462 bubbleSort(ordered_integrals,ordered_indices);
463 // for(int index=ordered_indices.size()-1;index>=0;index--) {
464 for(int index=0;index<ordered_indices.size();index++) {
465 thestack.Add(histogroups[ordered_indices[index]]);
466 }
467 */
468 for(int index=0;index<ordered_indices.size();index++) {
469 thestack.Add(histogroups[ordered_indices[index]]);
470 }
471 return thestack;
472 }
473
474 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
475 drawsignal=false)
476 {
477 vector<float> binning;
478 for(int i=0;i<=m_nbins;i++)
479 {
480 binning.push_back(((float)(m_maxx-m_minx)/((float)m_nbins))*i+m_minx);
481 }
482 return this->DrawStack(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity, drawsignal);
483 }
484
485
486 vector<int> samplecollection::FindSample(string what)
487 {
488 vector<int> hitcollection;
489 for(unsigned int isam=0;isam<(this->collection).size();isam++)
490 {
491 if(((this->collection)[isam].filename).find(what)!=string::npos) {
492 hitcollection.push_back(isam);
493 } else {
494 }
495 }
496 if(hitcollection.size()==0) {
497 hitcollection.push_back(-1);
498 write_warning(__FUNCTION__,"Couldn't find sample "+string(what)+" using sample collection \""+string(this->name)+"\"");
499 }
500 return hitcollection;
501 }
502
503 Color_t samplecollection::GetColor(string filename) {
504 vector<int> corresponding_samples = this->FindSample(filename);
505 if(corresponding_samples.size()>0) return this->GetColor(corresponding_samples[0]);
506 return kBlack;
507 }
508
509 Color_t samplecollection::GetColor(int sampleindex) {
510 return this->collection[sampleindex].samplecolor;
511 }
512
513 TLegend* samplecollection::allbglegend(string title, TH1F *data,float posx=0.65, float posy=0.60) {
514 // TLegend *leg = new TLegend(0.65,0.60,0.89,0.77);
515 TLegend *leg = new TLegend(posx,posy,0.89,0.89);
516 if(title!="") leg->SetHeader(title.c_str());
517 if(data->GetName()!="nothing") leg->AddEntry(data,"Data","p");
518 leg->SetFillColor(kWhite);
519 leg->SetBorderSize(0);
520 leg->SetLineColor(kWhite);
521
522 TH1F *fakehistos[(this->collection).size()];
523 bool donealready[(this->collection).size()];
524 for(int i=0;i<(this->collection).size();i++) donealready[i]=false;
525 for(int isample=0;isample<(this->collection).size();isample++) {
526 if((this->collection)[isample].is_data||(this->collection)[isample].is_signal) continue;
527
528 if(!donealready[(this->collection)[isample].groupindex]) {
529 fakehistos[(this->collection)[isample].groupindex] = new TH1F(GetNumericHistoName().c_str(),"",1,0,1);
530 fakehistos[(this->collection)[isample].groupindex]->Fill(1);
531 fakehistos[(this->collection)[isample].groupindex]->SetFillColor(this->GetColor(isample));
532 leg->AddEntry(fakehistos[(this->collection)[isample].groupindex],((this->collection)[isample].samplename).c_str(),"f");
533 donealready[(this->collection)[isample].groupindex]=true;
534 }
535 }
536 DrawPrelim();
537 leg->SetTextFont(42);
538 return leg;
539 }
540
541 TLegend* samplecollection::allbglegend(string title="",float posx=0.65, float posy=0.60) {
542 Int_t currlevel=gErrorIgnoreLevel;
543 gErrorIgnoreLevel=5000;
544 TH1F *blub = new TH1F("nothing","nothing",1,0,1);
545 gErrorIgnoreLevel=currlevel;//we know this possibly replaces a previous histo, but we don't care since it's fake anyway.
546 return this->allbglegend(title,blub,posx,posy);
547 }
548
549
550 void set_treename(string treen="events") {
551 dout << "Treename has been set to " << treen << endl;
552 if(treen=="PFevents"||treen=="events") treename=treen;
553 else write_error("sample::set_treename","Setting the treename failed as you provided an invalid tree name.");
554 }
555
556 vector<float> samplecollection::get_optimal_binsize(string variable, TCut cut,int nbins, float low, float high) {
557 TH1F *histo = this->Draw("histo",variable,5000,low,high, "finding_optimal_binsize", "events", cut,0,1000);
558 float eventsperbin=histo->Integral()/nbins;
559 vector<float> binning;
560 binning.push_back(high);
561 float runningsum=0;
562 for(int i=histo->GetNbinsX();i>0;i--) {
563 runningsum+=histo->GetBinContent(i);
564 if(TMath::Abs(runningsum-eventsperbin)<0.05*eventsperbin||runningsum>eventsperbin) {
565 binning.push_back(histo->GetBinLowEdge(i));
566 runningsum=0;
567 }
568 }
569 if(runningsum>0) binning.push_back(low);
570 for(int i=0;i<int(binning.size()/2);i++) {
571 float temp=binning[i];
572 binning[i]=binning[binning.size()-1-i];
573 binning[binning.size()-1-i]=temp;
574 }
575
576 return binning;
577
578 }
579
580 void samplecollection::PickUpFromThisFile(int isamp, string cut, vector<string> &output, vector<string> &pickupfile) {
581 int lumi,eventNum,runNum;
582 float jzb[30];
583 (this->collection)[isamp].events->SetBranchAddress("jzb",&jzb);
584 (this->collection)[isamp].events->SetBranchAddress("lumi",&runNum);
585 (this->collection)[isamp].events->SetBranchAddress("eventNum",&eventNum);
586 (this->collection)[isamp].events->SetBranchAddress("lumi",&lumi);
587 (this->collection)[isamp].events->SetBranchAddress("runNum",&runNum);
588
589
590 TTreeFormula *select = new TTreeFormula("select", cut.c_str()&&essentialcut, (this->collection)[isamp].events);
591 int npickedup=0;
592 for (Int_t entry = 0 ; entry < (this->collection)[isamp].events->GetEntries() ; entry++) {
593 (this->collection)[isamp].events->LoadTree(entry);
594 if (select->EvalInstance()) {
595 (this->collection)[isamp].events->GetEntry(entry);
596 dout << runNum << ":" << lumi << ":" << eventNum << endl;
597 npickedup++;
598 }
599 }
600 dout << "Printed out a total of " << npickedup << " events" << endl;
601 }
602
603
604
605 void samplecollection::PickUpEvents(string cut) {
606 vector<string> output;
607 vector<string> pickupfile;
608 for (int isamp=0;isamp<this->collection.size();isamp++)
609 {
610 if((this->collection)[isamp].is_data) {
611 //we have a data sample !
612 this->PickUpFromThisFile(isamp,cut,output,pickupfile);
613 }
614 }
615 //do something with output and of course the pickup file!
616 }
617
618 //________________________________________________________________________________________
619 // Find units from histogram x-label (looks for '[...]')
620 string samplecollection::find_units(string& xlabel) {
621
622 string units;
623 size_t pos1 = xlabel.find("[");
624 if ( pos1 != string::npos ) {
625 size_t pos2 = xlabel.find("]");
626 units = xlabel.substr(pos1+1,pos2-pos1-1);
627 }// else {
628 // size_t pos1 = xlabel.find("(");
629 // if ( pos1 != string::npos ) {
630 // size_t pos2 = xlabel.find(")");
631 // units = xlabel.substr(pos1+1,pos2-pos1-1);
632 // }
633 // }
634 return units;
635
636 }
637
638 void samplecollection::RemoveLastSample() {
639 dout << "Removing last sample: " << ((this->collection)[(this->collection).size()-1]).filename << std::endl;
640 if(((this->collection)[(this->collection).size()-1]).is_data) this->ndatasamples--;
641 else this->nmcsamples--;
642 this->nsamples--;
643 ((this->collection)[(this->collection).size()-1]).closeFile();
644 (this->collection).pop_back();
645 }
646
647 void switch_overunderflow(bool newpos=false) {
648 addoverunderflowbins=newpos;
649 }
650
651