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Revision: 1.14
Committed: Wed Aug 17 09:59:08 2011 UTC (13 years, 8 months ago) by fronga
Content type: text/plain
Branch: MAIN
Changes since 1.13: +31 -1 lines
Log Message:
Add units in y-axis labels.

File Contents

# User Rev Content
1 buchmann 1.1 #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 buchmann 1.5 #include <TH2.h>
10 buchmann 1.1 #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 buchmann 1.4 #include <TTreeFormula.h>
19 buchmann 1.1
20     #define SampleClassLoaded
21 buchmann 1.4
22 buchmann 1.1 #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 buchmann 1.2 bool addoverunderflowbins=false;
35 buchmann 1.1 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 buchmann 1.8 if(Verbosity>0) dout << "The " << write_mc_or_data(is_data) << " file " << this->filename << " has been added successfully to the list of samples. " << endl;
91 buchmann 1.1 }
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 buchmann 1.8 dout << "SAMPLE " << this->samplename << " cannot be closed as the underlying file (" << this->filename << ") does not exist!" << endl;
105 buchmann 1.1 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 buchmann 1.8 dout << "Error opening file" << filename << endl;
118 buchmann 1.1 return 0;
119     }
120     f->Close();
121     gErrorIgnoreLevel=currlevel;
122     return 1;
123     }
124     //********************************************************
125    
126     TCut essentialcut("mll>0");
127 fronga 1.10 // This will reweight all the events: use "weight" to correct MC for pileUP
128     TCut cutWeight("weight");
129 buchmann 1.1
130     void setessentialcut(TCut ess) {
131     essentialcut=ess;
132     }
133    
134     class samplecollection
135     {
136     public:
137     string name;
138     vector<sample> collection;
139     int nsamples;
140     int ndatasamples;
141     int nmcsamples;
142     int ngroups;
143    
144     samplecollection(string m_name);
145     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);
146    
147     //vector quantities
148     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);
149     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);
150    
151     //minx,maxs quantities
152     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);
153     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);
154    
155 buchmann 1.5 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);
156    
157 buchmann 1.2 vector<float> get_optimal_binsize(string variable, TCut cut,int nbins, float low, float high);
158    
159 buchmann 1.1 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);
160 buchmann 1.9 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);
161 buchmann 1.1 vector<int> FindSample(string what);
162     void ListSamples();
163     bool do_sample(int thissample, vector<int> &selected_samples);
164     Color_t GetColor(string filename);
165     Color_t GetColor(int sampleindex);
166    
167 buchmann 1.4 TLegend* allbglegend(string title,float x, float y);
168     TLegend* allbglegend(string title, TH1F *data, float x, float y);
169    
170     void PickUpFromThisFile(int isamp, string cut, vector<string> &output, vector<string> &pickupfile);
171     void PickUpEvents(string cut);
172 fronga 1.14 string find_units(string&);
173 buchmann 1.1 };
174    
175     samplecollection::samplecollection(string m_name)
176     {
177     this->name=m_name;
178 buchmann 1.8 if(Verbosity>0) dout << "Initiated sample collection " << this->name << " " << endl;
179 buchmann 1.1 }
180    
181     void samplecollection::ListSamples()
182     {
183 buchmann 1.8 dout << "---------------------------------------------------------------------------------------------------" << endl;
184     dout << "Listing all " << this->nsamples << " sample(s) of the sample collection called " << this->name << " : " << endl;
185 buchmann 1.1 if(this->ndatasamples>0) {
186 buchmann 1.8 dout << "Data sample(s): " << endl;
187 buchmann 1.1 for (int isamp=0;isamp<this->collection.size();isamp++)
188     {
189 buchmann 1.8 if((this->collection)[isamp].is_data) dout << " - " << (this->collection)[isamp].samplename << " from " << (this->collection)[isamp].filename << endl;
190 buchmann 1.1 }
191     }
192     if(this->nmcsamples>0) {
193 buchmann 1.8 dout << "MC sample(s): " << endl;
194 buchmann 1.1 for (int isamp=0;isamp<this->collection.size();isamp++)
195     {
196 buchmann 1.8 if(!(this->collection)[isamp].is_data) dout << " - " << (this->collection)[isamp].samplename << " from " << (this->collection)[isamp].filename << endl;
197 buchmann 1.1 }
198     }
199 buchmann 1.8 dout << "---------------------------------------------------------------------------------------------------" << endl;
200 buchmann 1.1 }
201    
202     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)
203     {
204     sample NewSample(m_filename,m_samplename,m_Nentries,m_xs,is_data,m_is_signal,groupindex,newcolor);
205     (this->collection).push_back(NewSample);
206     if((this->collection).size()==1) {
207     this->nmcsamples=0;
208     this->ndatasamples=0;
209     this->nsamples=0;
210     this->ngroups=0;
211     }
212     if(groupindex>this->ngroups) this->ngroups=groupindex;
213     if(is_data) this->ndatasamples++;
214     else this->nmcsamples++;
215     this->nsamples=this->collection.size();
216     }
217    
218     bool samplecollection::do_sample(int thissample, vector<int> &selected_samples)
219     {
220     bool drawit=false;
221     for(int isel=0;isel<selected_samples.size();isel++)
222     {
223     if(selected_samples[isel]==thissample) {
224     drawit=true;
225     break;
226     }
227     }
228     return drawit;
229     }
230    
231     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)
232     {
233     vector<int> emptyvector;
234     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);
235     return histo;
236     }
237    
238     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)
239     {
240     vector<int> emptyvector;
241     TH1F *histo = this->Draw(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity,emptyvector,drawsignal);
242     return histo;
243     }
244    
245     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) {
246 buchmann 1.8 if(Verbosity>0) dout << endl << endl;
247     if(Verbosity>0) dout << "-------------------------------------------------------------------------------------" << endl;
248     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;
249     if(HUSH==0) dout << "Drawing histo called " << m_histoname << "... " << endl;
250 buchmann 1.1 bool do_only_selected_samples=false;
251     if(onlyindex.size()>0&&onlyindex[0]!=-1) {
252 buchmann 1.8 if(Verbosity>0) {dout << "Requested to only draw sample corresponding to the following sample(s) : " << endl;}
253 buchmann 1.1 for(int is=0;is<onlyindex.size();is++) {
254 buchmann 1.8 if(Verbosity>0) dout << " - " << (this->collection)[onlyindex[is]].filename << " (sample index: " << onlyindex[is] << ")" << endl;
255 buchmann 1.1 }
256     do_only_selected_samples=true;
257     }
258     if(onlyindex.size()==1&&onlyindex[0]==-1) {
259     do_only_selected_samples=true; // this is the special case when we request a non-existing sample - we shouldn't draw anything then.
260     onlyindex.clear();
261     }
262     stringstream h_histoname;
263     h_histoname<<"h_"<<m_histoname;
264     float binningarray[binning.size()+1];
265     for(int i=0;i<binning.size();i++) {binningarray[i]=binning[i];}
266     TH1F *histo = new TH1F(m_histoname.c_str(),"",binning.size()-1,binningarray);
267     histo->Sumw2();
268    
269     stringstream drawthis;
270     drawthis<<m_var<<">>tempdrawhisto";
271    
272     for (unsigned int isample=0;isample<(this->collection).size();isample++) {
273     bool use_this_sample=false;
274     if(!(this->collection)[isample].is_active) continue; // skip inactive samples right away
275     if(((this->collection)[isample].is_data==m_is_data)&&(!do_only_selected_samples)) {
276     if(drawsignal==false&&(this->collection)[isample].is_signal==true) continue;
277     use_this_sample=true;
278     }
279     if(do_only_selected_samples&&this->do_sample(isample,onlyindex)) {
280     use_this_sample=true;
281     }
282     TH1F *tempdrawhisto = new TH1F("tempdrawhisto","tempdrawhisto",binning.size()-1,binningarray);
283     tempdrawhisto->Sumw2();
284     if(use_this_sample) {
285 buchmann 1.8 if(Verbosity>0) dout << "[samplecollection::Draw] : Added contribution from sample " << (this->collection)[isample].samplename << endl;
286 fronga 1.10 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);//this weight is based on PU etc. not XS
287 buchmann 1.2 if(addoverunderflowbins) {
288     //now also adding the overflow & underflow bins:
289     tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
290     tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
291     tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
292     tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
293     }
294    
295     if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));//weight applied here is XS & N(entries)
296 buchmann 1.1 histo->Add(tempdrawhisto);
297     }
298     tempdrawhisto->Delete();
299     }//end of loop over isample
300 buchmann 1.8 if(Verbosity>0) dout << "Histo has been filled and now contains " << histo->Integral() << " points (integral)" << endl;
301 buchmann 1.1 histo->GetXaxis()->SetTitle(m_xlabel.c_str());
302 fronga 1.14 // Try to add bin width information: look for units in m_xlabel
303     string units = find_units(m_xlabel);
304     if ( units.length()>0 ) {
305     stringstream ylabel;
306     ylabel << m_ylabel << " / " << histo->GetBinWidth(1) << " " << units;
307     histo->GetYaxis()->SetTitle( ylabel.str().c_str() );
308     } else {
309     histo->GetYaxis()->SetTitle(m_ylabel.c_str());
310     }
311 buchmann 1.1 histo->GetXaxis()->CenterTitle();
312     histo->GetYaxis()->CenterTitle();
313     if(do_only_selected_samples) histo->SetLineColor(this->GetColor(onlyindex[0]));
314     return histo;
315     }
316    
317 buchmann 1.5 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) {
318 buchmann 1.8 if(Verbosity>0) dout << endl << endl;
319     if(Verbosity>0) dout << "-------------------------------------------------------------------------------------" << endl;
320     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;
321     if(HUSH==0) dout << "Drawing histo called " << m_histoname << "... " << endl;
322 buchmann 1.5 bool do_only_selected_samples=false;
323     if(onlyindex.size()>0&&onlyindex[0]!=-1) {
324 buchmann 1.8 if(Verbosity>0) {dout << "Requested to only draw sample corresponding to the following sample(s) : " << endl;}
325 buchmann 1.5 for(int is=0;is<onlyindex.size();is++) {
326 buchmann 1.8 if(Verbosity>0) dout << " - " << (this->collection)[onlyindex[is]].filename << " (sample index: " << onlyindex[is] << ")" << endl;
327 buchmann 1.5 }
328     do_only_selected_samples=true;
329     }
330     if(onlyindex.size()==1&&onlyindex[0]==-1) {
331     do_only_selected_samples=true; // this is the special case when we request a non-existing sample - we shouldn't draw anything then.
332     onlyindex.clear();
333     }
334     stringstream h_histoname;
335     h_histoname<<"h_"<<m_histoname;
336     float binningarray[binningx.size()+1];
337     float binningyarray[binningy.size()+1];
338     for(int i=0;i<binningx.size();i++) {binningarray[i]=binningx[i];binningyarray[i]=binningy[i];}
339     TH2F *histo = new TH2F(m_histoname.c_str(),"",binningx.size()-1,binningarray,binningy.size(),binningyarray);
340     histo->Sumw2();
341    
342     stringstream drawthis;
343     drawthis<<m_var<<">>tempdrawhisto";
344    
345     for (unsigned int isample=0;isample<(this->collection).size();isample++) {
346     bool use_this_sample=false;
347     if(!(this->collection)[isample].is_active) continue; // skip inactive samples right away
348     if(((this->collection)[isample].is_data==m_is_data)&&(!do_only_selected_samples)) {
349     if(drawsignal==false&&(this->collection)[isample].is_signal==true) continue;
350     use_this_sample=true;
351     }
352     if(do_only_selected_samples&&this->do_sample(isample,onlyindex)) {
353     use_this_sample=true;
354     }
355     TH2F *tempdrawhisto = new TH2F("tempdrawhisto","tempdrawhisto",binningx.size()-1,binningarray,binningy.size()-1,binningyarray);
356     tempdrawhisto->Sumw2();
357     if(use_this_sample) {
358 buchmann 1.8 if(Verbosity>0) dout << "[samplecollection::Draw] : Added contribution from sample " << (this->collection)[isample].samplename << endl;
359 fronga 1.10 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);//this weight is based on PU etc. not XS
360 buchmann 1.5 if(addoverunderflowbins) {
361     //now also adding the overflow & underflow bins:
362     tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
363     tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
364     tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
365     tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
366     }
367    
368     if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));//weight applied here is XS & N(entries)
369     histo->Add(tempdrawhisto);
370     }
371     tempdrawhisto->Delete();
372     }//end of loop over isample
373 buchmann 1.8 if(Verbosity>0) dout << "Histo has been filled and now contains " << histo->Integral() << " points (integral)" << endl;
374 buchmann 1.5 histo->GetXaxis()->SetTitle(m_xlabel.c_str());
375     histo->GetYaxis()->SetTitle(m_ylabel.c_str());
376     histo->GetXaxis()->CenterTitle();
377     histo->GetYaxis()->CenterTitle();
378     if(do_only_selected_samples) histo->SetLineColor(this->GetColor(onlyindex[0]));
379     return histo;
380     }
381    
382 buchmann 1.1
383     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)
384     {
385     vector<float> binning;
386     for(int i=0;i<=m_nbins;i++)
387     {
388     binning.push_back(((float)(m_maxx-m_minx)/((float)m_nbins))*i+m_minx);
389     }
390    
391     TH1F *histo = this->Draw(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity, onlyindex,drawsignal);
392     return histo;
393     }
394 buchmann 1.9
395     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) {
396 buchmann 1.1 stringstream h_histoname;
397     h_histoname<<"h_"<<m_histoname;
398     THStack thestack("thestack",m_histoname.c_str());
399    
400     stringstream drawthis;
401     drawthis<<m_var<<">>tempdrawhisto";
402    
403     TH1F *histogroups[this->ngroups+1];
404     int bookedhistos[this->ngroups+1];
405     for(int ih=0;ih<=this->ngroups;ih++) bookedhistos[ih]=0;
406    
407 buchmann 1.9 float binningarray[binning.size()+1];
408     for(int i=0;i<binning.size();i++) {binningarray[i]=binning[i];}
409    
410 buchmann 1.1 for (unsigned int isample=0;isample<(this->collection).size();isample++) {
411     if(!drawsignal&&(this->collection)[isample].is_signal) continue;
412     if((this->collection)[isample].is_active&&(this->collection)[isample].is_data==m_is_data) {//fills mc if we want mc, else fills data.
413 buchmann 1.9 TH1F *tempdrawhisto = new TH1F("tempdrawhisto","",binning.size()-1,binningarray);
414 fronga 1.10 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);
415 buchmann 1.2
416     if(addoverunderflowbins) {
417     //now also adding the overflow & underflow bins:
418     tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
419     tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
420     tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
421     tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
422     }
423    
424 buchmann 1.1 if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));
425     tempdrawhisto->SetFillColor(this->GetColor(isample));
426     if(bookedhistos[(this->collection)[isample].groupindex]==0) {
427     tempdrawhisto->SetName(GetNumericHistoName().c_str());
428     histogroups[(this->collection)[isample].groupindex]=(TH1F*)tempdrawhisto->Clone();
429     bookedhistos[(this->collection)[isample].groupindex]=1;
430     }
431     else
432     {
433     histogroups[(this->collection)[isample].groupindex]->Add(tempdrawhisto);
434     bookedhistos[(this->collection)[isample].groupindex]++;
435     }
436     tempdrawhisto->Delete();
437     }
438     }
439     vector<int> ordered_indices;
440     vector<float> ordered_integrals;
441    
442     for(int ig=0;ig<=this->ngroups;ig++) {
443     if(bookedhistos[ig]>0) {
444     ordered_indices.push_back(ig);
445     ordered_integrals.push_back(histogroups[ig]->Integral());
446     }
447     }
448    
449     /*
450     bubbleSort(ordered_integrals,ordered_indices);
451     // for(int index=ordered_indices.size()-1;index>=0;index--) {
452     for(int index=0;index<ordered_indices.size();index++) {
453     thestack.Add(histogroups[ordered_indices[index]]);
454     }
455     */
456     for(int index=0;index<ordered_indices.size();index++) {
457     thestack.Add(histogroups[ordered_indices[index]]);
458     }
459     return thestack;
460     }
461    
462 buchmann 1.9 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
463     drawsignal=false)
464     {
465     vector<float> binning;
466     for(int i=0;i<=m_nbins;i++)
467     {
468     binning.push_back(((float)(m_maxx-m_minx)/((float)m_nbins))*i+m_minx);
469     }
470     return this->DrawStack(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity, drawsignal);
471     }
472    
473 buchmann 1.1
474     vector<int> samplecollection::FindSample(string what)
475     {
476     vector<int> hitcollection;
477     for(unsigned int isam=0;isam<(this->collection).size();isam++)
478     {
479     if(((this->collection)[isam].filename).find(what)!=string::npos) {
480     hitcollection.push_back(isam);
481 fronga 1.10 } else {
482 buchmann 1.1 }
483     }
484 fronga 1.10 if(hitcollection.size()==0) {
485     hitcollection.push_back(-1);
486 buchmann 1.13 write_warning(__FUNCTION__,"Couldn't find sample "+string(what)+" using sample collection \""+string(this->name)+"\"");
487 fronga 1.10 }
488 buchmann 1.1 return hitcollection;
489     }
490    
491     Color_t samplecollection::GetColor(string filename) {
492     vector<int> corresponding_samples = this->FindSample(filename);
493     if(corresponding_samples.size()>0) return this->GetColor(corresponding_samples[0]);
494     return kBlack;
495     }
496    
497     Color_t samplecollection::GetColor(int sampleindex) {
498     return this->collection[sampleindex].samplecolor;
499     }
500    
501 buchmann 1.4 TLegend* samplecollection::allbglegend(string title, TH1F *data,float posx=0.65, float posy=0.60) {
502     // TLegend *leg = new TLegend(0.65,0.60,0.89,0.77);
503 buchmann 1.6 TLegend *leg = new TLegend(posx,posy,0.89,0.89);
504 buchmann 1.1 if(title!="") leg->SetHeader(title.c_str());
505     if(data->GetName()!="nothing") leg->AddEntry(data,"Data","p");
506     leg->SetFillColor(kWhite);
507     leg->SetBorderSize(0);
508     leg->SetLineColor(kWhite);
509    
510     TH1F *fakehistos[(this->collection).size()];
511     bool donealready[(this->collection).size()];
512     for(int i=0;i<(this->collection).size();i++) donealready[i]=false;
513     for(int isample=0;isample<(this->collection).size();isample++) {
514     if((this->collection)[isample].is_data||(this->collection)[isample].is_signal) continue;
515    
516     if(!donealready[(this->collection)[isample].groupindex]) {
517     fakehistos[(this->collection)[isample].groupindex] = new TH1F(GetNumericHistoName().c_str(),"",1,0,1);
518     fakehistos[(this->collection)[isample].groupindex]->Fill(1);
519     fakehistos[(this->collection)[isample].groupindex]->SetFillColor(this->GetColor(isample));
520     leg->AddEntry(fakehistos[(this->collection)[isample].groupindex],((this->collection)[isample].samplename).c_str(),"f");
521     donealready[(this->collection)[isample].groupindex]=true;
522     }
523     }
524 buchmann 1.4 DrawPrelim();
525 buchmann 1.1 leg->SetTextFont(42);
526     return leg;
527     }
528    
529 buchmann 1.4 TLegend* samplecollection::allbglegend(string title="",float posx=0.65, float posy=0.60) {
530 buchmann 1.1 Int_t currlevel=gErrorIgnoreLevel;
531     gErrorIgnoreLevel=5000;
532     TH1F *blub = new TH1F("nothing","nothing",1,0,1);
533     gErrorIgnoreLevel=currlevel;//we know this possibly replaces a previous histo, but we don't care since it's fake anyway.
534 buchmann 1.4 return this->allbglegend(title,blub,posx,posy);
535 buchmann 1.1 }
536    
537 buchmann 1.4
538 buchmann 1.1 void set_treename(string treen="events") {
539 buchmann 1.8 dout << "Treename has been set to " << treen << endl;
540 buchmann 1.1 if(treen=="PFevents"||treen=="events") treename=treen;
541     else write_error("sample::set_treename","Setting the treename failed as you provided an invalid tree name.");
542     }
543 buchmann 1.2
544     vector<float> samplecollection::get_optimal_binsize(string variable, TCut cut,int nbins, float low, float high) {
545     TH1F *histo = this->Draw("histo",variable,5000,low,high, "finding_optimal_binsize", "events", cut,0,1000);
546     float eventsperbin=histo->Integral()/nbins;
547     vector<float> binning;
548     binning.push_back(high);
549     float runningsum=0;
550     for(int i=histo->GetNbinsX();i>0;i--) {
551     runningsum+=histo->GetBinContent(i);
552     if(TMath::Abs(runningsum-eventsperbin)<0.05*eventsperbin||runningsum>eventsperbin) {
553     binning.push_back(histo->GetBinLowEdge(i));
554     runningsum=0;
555     }
556     }
557     if(runningsum>0) binning.push_back(low);
558     for(int i=0;i<int(binning.size()/2);i++) {
559     float temp=binning[i];
560     binning[i]=binning[binning.size()-1-i];
561     binning[binning.size()-1-i]=temp;
562     }
563    
564     return binning;
565    
566 buchmann 1.3 }
567    
568 buchmann 1.4 void samplecollection::PickUpFromThisFile(int isamp, string cut, vector<string> &output, vector<string> &pickupfile) {
569     int lumi,eventNum,runNum;
570     float jzb[30];
571     (this->collection)[isamp].events->SetBranchAddress("jzb",&jzb);
572     (this->collection)[isamp].events->SetBranchAddress("lumi",&runNum);
573     (this->collection)[isamp].events->SetBranchAddress("eventNum",&eventNum);
574     (this->collection)[isamp].events->SetBranchAddress("lumi",&lumi);
575     (this->collection)[isamp].events->SetBranchAddress("runNum",&runNum);
576 buchmann 1.11
577 buchmann 1.4
578 buchmann 1.7 TTreeFormula *select = new TTreeFormula("select", cut.c_str()&&essentialcut, (this->collection)[isamp].events);
579     int npickedup=0;
580 buchmann 1.4 for (Int_t entry = 0 ; entry < (this->collection)[isamp].events->GetEntries() ; entry++) {
581     (this->collection)[isamp].events->LoadTree(entry);
582     if (select->EvalInstance()) {
583     (this->collection)[isamp].events->GetEntry(entry);
584 buchmann 1.8 dout << runNum << ":" << lumi << ":" << eventNum << endl;
585 buchmann 1.7 npickedup++;
586 buchmann 1.4 }
587     }
588 buchmann 1.8 dout << "Printed out a total of " << npickedup << " events" << endl;
589 buchmann 1.4 }
590    
591    
592    
593     void samplecollection::PickUpEvents(string cut) {
594     vector<string> output;
595     vector<string> pickupfile;
596     for (int isamp=0;isamp<this->collection.size();isamp++)
597     {
598     if((this->collection)[isamp].is_data) {
599     //we have a data sample !
600     this->PickUpFromThisFile(isamp,cut,output,pickupfile);
601     }
602     }
603     //do something with output and of course the pickup file!
604     }
605    
606 fronga 1.14 //________________________________________________________________________________________
607     // Find units from histogram x-label (looks for '[...]')
608     string samplecollection::find_units(string& xlabel) {
609    
610     string units;
611     size_t pos1 = xlabel.find("[");
612     if ( pos1 != string::npos ) {
613     size_t pos2 = xlabel.find("]");
614     units = xlabel.substr(pos1+1,pos2-pos1-1);
615     }// else {
616     // size_t pos1 = xlabel.find("(");
617     // if ( pos1 != string::npos ) {
618     // size_t pos2 = xlabel.find(")");
619     // units = xlabel.substr(pos1+1,pos2-pos1-1);
620     // }
621     // }
622     return units;
623    
624     }
625 buchmann 1.4
626 buchmann 1.3 void switch_overunderflow(bool newpos=false) {
627     addoverunderflowbins=newpos;
628 fronga 1.10 }
629 fronga 1.14
630