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Revision: 1.12
Committed: Mon Aug 15 09:31:23 2011 UTC (13 years, 8 months ago) by buchmann
Content type: text/plain
Branch: MAIN
Changes since 1.11: +1 -1 lines
Log Message:
Fixed minor 'typo'

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 buchmann 1.1 };
173    
174     samplecollection::samplecollection(string m_name)
175     {
176     this->name=m_name;
177 buchmann 1.8 if(Verbosity>0) dout << "Initiated sample collection " << this->name << " " << endl;
178 buchmann 1.1 }
179    
180     void samplecollection::ListSamples()
181     {
182 buchmann 1.8 dout << "---------------------------------------------------------------------------------------------------" << endl;
183     dout << "Listing all " << this->nsamples << " sample(s) of the sample collection called " << this->name << " : " << endl;
184 buchmann 1.1 if(this->ndatasamples>0) {
185 buchmann 1.8 dout << "Data sample(s): " << endl;
186 buchmann 1.1 for (int isamp=0;isamp<this->collection.size();isamp++)
187     {
188 buchmann 1.8 if((this->collection)[isamp].is_data) dout << " - " << (this->collection)[isamp].samplename << " from " << (this->collection)[isamp].filename << endl;
189 buchmann 1.1 }
190     }
191     if(this->nmcsamples>0) {
192 buchmann 1.8 dout << "MC sample(s): " << endl;
193 buchmann 1.1 for (int isamp=0;isamp<this->collection.size();isamp++)
194     {
195 buchmann 1.8 if(!(this->collection)[isamp].is_data) dout << " - " << (this->collection)[isamp].samplename << " from " << (this->collection)[isamp].filename << endl;
196 buchmann 1.1 }
197     }
198 buchmann 1.8 dout << "---------------------------------------------------------------------------------------------------" << endl;
199 buchmann 1.1 }
200    
201     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)
202     {
203     sample NewSample(m_filename,m_samplename,m_Nentries,m_xs,is_data,m_is_signal,groupindex,newcolor);
204     (this->collection).push_back(NewSample);
205     if((this->collection).size()==1) {
206     this->nmcsamples=0;
207     this->ndatasamples=0;
208     this->nsamples=0;
209     this->ngroups=0;
210     }
211     if(groupindex>this->ngroups) this->ngroups=groupindex;
212     if(is_data) this->ndatasamples++;
213     else this->nmcsamples++;
214     this->nsamples=this->collection.size();
215     }
216    
217     bool samplecollection::do_sample(int thissample, vector<int> &selected_samples)
218     {
219     bool drawit=false;
220     for(int isel=0;isel<selected_samples.size();isel++)
221     {
222     if(selected_samples[isel]==thissample) {
223     drawit=true;
224     break;
225     }
226     }
227     return drawit;
228     }
229    
230     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)
231     {
232     vector<int> emptyvector;
233     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);
234     return histo;
235     }
236    
237     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)
238     {
239     vector<int> emptyvector;
240     TH1F *histo = this->Draw(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity,emptyvector,drawsignal);
241     return histo;
242     }
243    
244     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) {
245 buchmann 1.8 if(Verbosity>0) dout << endl << endl;
246     if(Verbosity>0) dout << "-------------------------------------------------------------------------------------" << endl;
247     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;
248     if(HUSH==0) dout << "Drawing histo called " << m_histoname << "... " << endl;
249 buchmann 1.1 bool do_only_selected_samples=false;
250     if(onlyindex.size()>0&&onlyindex[0]!=-1) {
251 buchmann 1.8 if(Verbosity>0) {dout << "Requested to only draw sample corresponding to the following sample(s) : " << endl;}
252 buchmann 1.1 for(int is=0;is<onlyindex.size();is++) {
253 buchmann 1.8 if(Verbosity>0) dout << " - " << (this->collection)[onlyindex[is]].filename << " (sample index: " << onlyindex[is] << ")" << endl;
254 buchmann 1.1 }
255     do_only_selected_samples=true;
256     }
257     if(onlyindex.size()==1&&onlyindex[0]==-1) {
258     do_only_selected_samples=true; // this is the special case when we request a non-existing sample - we shouldn't draw anything then.
259     onlyindex.clear();
260     }
261     stringstream h_histoname;
262     h_histoname<<"h_"<<m_histoname;
263     float binningarray[binning.size()+1];
264     for(int i=0;i<binning.size();i++) {binningarray[i]=binning[i];}
265     TH1F *histo = new TH1F(m_histoname.c_str(),"",binning.size()-1,binningarray);
266     histo->Sumw2();
267    
268     stringstream drawthis;
269     drawthis<<m_var<<">>tempdrawhisto";
270    
271     for (unsigned int isample=0;isample<(this->collection).size();isample++) {
272     bool use_this_sample=false;
273     if(!(this->collection)[isample].is_active) continue; // skip inactive samples right away
274     if(((this->collection)[isample].is_data==m_is_data)&&(!do_only_selected_samples)) {
275     if(drawsignal==false&&(this->collection)[isample].is_signal==true) continue;
276     use_this_sample=true;
277     }
278     if(do_only_selected_samples&&this->do_sample(isample,onlyindex)) {
279     use_this_sample=true;
280     }
281     TH1F *tempdrawhisto = new TH1F("tempdrawhisto","tempdrawhisto",binning.size()-1,binningarray);
282     tempdrawhisto->Sumw2();
283     if(use_this_sample) {
284 buchmann 1.8 if(Verbosity>0) dout << "[samplecollection::Draw] : Added contribution from sample " << (this->collection)[isample].samplename << endl;
285 fronga 1.10 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);//this weight is based on PU etc. not XS
286 buchmann 1.2 if(addoverunderflowbins) {
287     //now also adding the overflow & underflow bins:
288     tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
289     tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
290     tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
291     tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
292     }
293    
294     if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));//weight applied here is XS & N(entries)
295 buchmann 1.1 histo->Add(tempdrawhisto);
296     }
297     tempdrawhisto->Delete();
298     }//end of loop over isample
299 buchmann 1.8 if(Verbosity>0) dout << "Histo has been filled and now contains " << histo->Integral() << " points (integral)" << endl;
300 buchmann 1.1 histo->GetXaxis()->SetTitle(m_xlabel.c_str());
301     histo->GetYaxis()->SetTitle(m_ylabel.c_str());
302     histo->GetXaxis()->CenterTitle();
303     histo->GetYaxis()->CenterTitle();
304     if(do_only_selected_samples) histo->SetLineColor(this->GetColor(onlyindex[0]));
305     return histo;
306     }
307    
308 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) {
309 buchmann 1.8 if(Verbosity>0) dout << endl << endl;
310     if(Verbosity>0) dout << "-------------------------------------------------------------------------------------" << endl;
311     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;
312     if(HUSH==0) dout << "Drawing histo called " << m_histoname << "... " << endl;
313 buchmann 1.5 bool do_only_selected_samples=false;
314     if(onlyindex.size()>0&&onlyindex[0]!=-1) {
315 buchmann 1.8 if(Verbosity>0) {dout << "Requested to only draw sample corresponding to the following sample(s) : " << endl;}
316 buchmann 1.5 for(int is=0;is<onlyindex.size();is++) {
317 buchmann 1.8 if(Verbosity>0) dout << " - " << (this->collection)[onlyindex[is]].filename << " (sample index: " << onlyindex[is] << ")" << endl;
318 buchmann 1.5 }
319     do_only_selected_samples=true;
320     }
321     if(onlyindex.size()==1&&onlyindex[0]==-1) {
322     do_only_selected_samples=true; // this is the special case when we request a non-existing sample - we shouldn't draw anything then.
323     onlyindex.clear();
324     }
325     stringstream h_histoname;
326     h_histoname<<"h_"<<m_histoname;
327     float binningarray[binningx.size()+1];
328     float binningyarray[binningy.size()+1];
329     for(int i=0;i<binningx.size();i++) {binningarray[i]=binningx[i];binningyarray[i]=binningy[i];}
330     TH2F *histo = new TH2F(m_histoname.c_str(),"",binningx.size()-1,binningarray,binningy.size(),binningyarray);
331     histo->Sumw2();
332    
333     stringstream drawthis;
334     drawthis<<m_var<<">>tempdrawhisto";
335    
336     for (unsigned int isample=0;isample<(this->collection).size();isample++) {
337     bool use_this_sample=false;
338     if(!(this->collection)[isample].is_active) continue; // skip inactive samples right away
339     if(((this->collection)[isample].is_data==m_is_data)&&(!do_only_selected_samples)) {
340     if(drawsignal==false&&(this->collection)[isample].is_signal==true) continue;
341     use_this_sample=true;
342     }
343     if(do_only_selected_samples&&this->do_sample(isample,onlyindex)) {
344     use_this_sample=true;
345     }
346     TH2F *tempdrawhisto = new TH2F("tempdrawhisto","tempdrawhisto",binningx.size()-1,binningarray,binningy.size()-1,binningyarray);
347     tempdrawhisto->Sumw2();
348     if(use_this_sample) {
349 buchmann 1.8 if(Verbosity>0) dout << "[samplecollection::Draw] : Added contribution from sample " << (this->collection)[isample].samplename << endl;
350 fronga 1.10 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);//this weight is based on PU etc. not XS
351 buchmann 1.5 if(addoverunderflowbins) {
352     //now also adding the overflow & underflow bins:
353     tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
354     tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
355     tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
356     tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
357     }
358    
359     if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));//weight applied here is XS & N(entries)
360     histo->Add(tempdrawhisto);
361     }
362     tempdrawhisto->Delete();
363     }//end of loop over isample
364 buchmann 1.8 if(Verbosity>0) dout << "Histo has been filled and now contains " << histo->Integral() << " points (integral)" << endl;
365 buchmann 1.5 histo->GetXaxis()->SetTitle(m_xlabel.c_str());
366     histo->GetYaxis()->SetTitle(m_ylabel.c_str());
367     histo->GetXaxis()->CenterTitle();
368     histo->GetYaxis()->CenterTitle();
369     if(do_only_selected_samples) histo->SetLineColor(this->GetColor(onlyindex[0]));
370     return histo;
371     }
372    
373 buchmann 1.1
374     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)
375     {
376     vector<float> binning;
377     for(int i=0;i<=m_nbins;i++)
378     {
379     binning.push_back(((float)(m_maxx-m_minx)/((float)m_nbins))*i+m_minx);
380     }
381    
382     TH1F *histo = this->Draw(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity, onlyindex,drawsignal);
383     return histo;
384     }
385 buchmann 1.9
386     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) {
387 buchmann 1.1 stringstream h_histoname;
388     h_histoname<<"h_"<<m_histoname;
389     THStack thestack("thestack",m_histoname.c_str());
390    
391     stringstream drawthis;
392     drawthis<<m_var<<">>tempdrawhisto";
393    
394     TH1F *histogroups[this->ngroups+1];
395     int bookedhistos[this->ngroups+1];
396     for(int ih=0;ih<=this->ngroups;ih++) bookedhistos[ih]=0;
397    
398 buchmann 1.9 float binningarray[binning.size()+1];
399     for(int i=0;i<binning.size();i++) {binningarray[i]=binning[i];}
400    
401 buchmann 1.1 for (unsigned int isample=0;isample<(this->collection).size();isample++) {
402     if(!drawsignal&&(this->collection)[isample].is_signal) continue;
403     if((this->collection)[isample].is_active&&(this->collection)[isample].is_data==m_is_data) {//fills mc if we want mc, else fills data.
404 buchmann 1.9 TH1F *tempdrawhisto = new TH1F("tempdrawhisto","",binning.size()-1,binningarray);
405 fronga 1.10 (this->collection)[isample].events->Draw(drawthis.str().c_str(),(essentialcut&&Cut)*cutWeight);
406 buchmann 1.2
407     if(addoverunderflowbins) {
408     //now also adding the overflow & underflow bins:
409     tempdrawhisto->SetBinContent(tempdrawhisto->GetNbinsX(),tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX()+1));
410     tempdrawhisto->SetBinError(tempdrawhisto->GetNbinsX(),TMath::Sqrt(tempdrawhisto->GetBinContent(tempdrawhisto->GetNbinsX())));
411     tempdrawhisto->SetBinContent(1,tempdrawhisto->GetBinContent(0));
412     tempdrawhisto->SetBinError(1,TMath::Sqrt(tempdrawhisto->GetBinContent(1)));
413     }
414    
415 buchmann 1.1 if(!(this->collection)[isample].is_data) tempdrawhisto->Scale(luminosity*((this->collection)[isample].weight));
416     tempdrawhisto->SetFillColor(this->GetColor(isample));
417     if(bookedhistos[(this->collection)[isample].groupindex]==0) {
418     tempdrawhisto->SetName(GetNumericHistoName().c_str());
419     histogroups[(this->collection)[isample].groupindex]=(TH1F*)tempdrawhisto->Clone();
420     bookedhistos[(this->collection)[isample].groupindex]=1;
421     }
422     else
423     {
424     histogroups[(this->collection)[isample].groupindex]->Add(tempdrawhisto);
425     bookedhistos[(this->collection)[isample].groupindex]++;
426     }
427     tempdrawhisto->Delete();
428     }
429     }
430     vector<int> ordered_indices;
431     vector<float> ordered_integrals;
432    
433     for(int ig=0;ig<=this->ngroups;ig++) {
434     if(bookedhistos[ig]>0) {
435     ordered_indices.push_back(ig);
436     ordered_integrals.push_back(histogroups[ig]->Integral());
437     }
438     }
439    
440     /*
441     bubbleSort(ordered_integrals,ordered_indices);
442     // for(int index=ordered_indices.size()-1;index>=0;index--) {
443     for(int index=0;index<ordered_indices.size();index++) {
444     thestack.Add(histogroups[ordered_indices[index]]);
445     }
446     */
447     for(int index=0;index<ordered_indices.size();index++) {
448     thestack.Add(histogroups[ordered_indices[index]]);
449     }
450     return thestack;
451     }
452    
453 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
454     drawsignal=false)
455     {
456     vector<float> binning;
457     for(int i=0;i<=m_nbins;i++)
458     {
459     binning.push_back(((float)(m_maxx-m_minx)/((float)m_nbins))*i+m_minx);
460     }
461     return this->DrawStack(m_histoname,m_var, binning, m_xlabel, m_ylabel, Cut, m_is_data, luminosity, drawsignal);
462     }
463    
464 buchmann 1.1
465     vector<int> samplecollection::FindSample(string what)
466     {
467     vector<int> hitcollection;
468     for(unsigned int isam=0;isam<(this->collection).size();isam++)
469     {
470     if(((this->collection)[isam].filename).find(what)!=string::npos) {
471     hitcollection.push_back(isam);
472 fronga 1.10 } else {
473 buchmann 1.1 }
474     }
475 fronga 1.10 if(hitcollection.size()==0) {
476     hitcollection.push_back(-1);
477 buchmann 1.12 write_warning(__FUNCTION__,"Couldn't find sample "+string(what)+": using sample collection \""+string(this->name)+"\"");
478 fronga 1.10 }
479 buchmann 1.1 return hitcollection;
480     }
481    
482     Color_t samplecollection::GetColor(string filename) {
483     vector<int> corresponding_samples = this->FindSample(filename);
484     if(corresponding_samples.size()>0) return this->GetColor(corresponding_samples[0]);
485     return kBlack;
486     }
487    
488     Color_t samplecollection::GetColor(int sampleindex) {
489     return this->collection[sampleindex].samplecolor;
490     }
491    
492 buchmann 1.4 TLegend* samplecollection::allbglegend(string title, TH1F *data,float posx=0.65, float posy=0.60) {
493     // TLegend *leg = new TLegend(0.65,0.60,0.89,0.77);
494 buchmann 1.6 TLegend *leg = new TLegend(posx,posy,0.89,0.89);
495 buchmann 1.1 if(title!="") leg->SetHeader(title.c_str());
496     if(data->GetName()!="nothing") leg->AddEntry(data,"Data","p");
497     leg->SetFillColor(kWhite);
498     leg->SetBorderSize(0);
499     leg->SetLineColor(kWhite);
500    
501     TH1F *fakehistos[(this->collection).size()];
502     bool donealready[(this->collection).size()];
503     for(int i=0;i<(this->collection).size();i++) donealready[i]=false;
504     for(int isample=0;isample<(this->collection).size();isample++) {
505     if((this->collection)[isample].is_data||(this->collection)[isample].is_signal) continue;
506    
507     if(!donealready[(this->collection)[isample].groupindex]) {
508     fakehistos[(this->collection)[isample].groupindex] = new TH1F(GetNumericHistoName().c_str(),"",1,0,1);
509     fakehistos[(this->collection)[isample].groupindex]->Fill(1);
510     fakehistos[(this->collection)[isample].groupindex]->SetFillColor(this->GetColor(isample));
511     leg->AddEntry(fakehistos[(this->collection)[isample].groupindex],((this->collection)[isample].samplename).c_str(),"f");
512     donealready[(this->collection)[isample].groupindex]=true;
513     }
514     }
515 buchmann 1.4 DrawPrelim();
516 buchmann 1.1 leg->SetTextFont(42);
517     return leg;
518     }
519    
520 buchmann 1.4 TLegend* samplecollection::allbglegend(string title="",float posx=0.65, float posy=0.60) {
521 buchmann 1.1 Int_t currlevel=gErrorIgnoreLevel;
522     gErrorIgnoreLevel=5000;
523     TH1F *blub = new TH1F("nothing","nothing",1,0,1);
524     gErrorIgnoreLevel=currlevel;//we know this possibly replaces a previous histo, but we don't care since it's fake anyway.
525 buchmann 1.4 return this->allbglegend(title,blub,posx,posy);
526 buchmann 1.1 }
527    
528 buchmann 1.4
529 buchmann 1.1 void set_treename(string treen="events") {
530 buchmann 1.8 dout << "Treename has been set to " << treen << endl;
531 buchmann 1.1 if(treen=="PFevents"||treen=="events") treename=treen;
532     else write_error("sample::set_treename","Setting the treename failed as you provided an invalid tree name.");
533     }
534 buchmann 1.2
535     vector<float> samplecollection::get_optimal_binsize(string variable, TCut cut,int nbins, float low, float high) {
536     TH1F *histo = this->Draw("histo",variable,5000,low,high, "finding_optimal_binsize", "events", cut,0,1000);
537     float eventsperbin=histo->Integral()/nbins;
538     vector<float> binning;
539     binning.push_back(high);
540     float runningsum=0;
541     for(int i=histo->GetNbinsX();i>0;i--) {
542     runningsum+=histo->GetBinContent(i);
543     if(TMath::Abs(runningsum-eventsperbin)<0.05*eventsperbin||runningsum>eventsperbin) {
544     binning.push_back(histo->GetBinLowEdge(i));
545     runningsum=0;
546     }
547     }
548     if(runningsum>0) binning.push_back(low);
549     for(int i=0;i<int(binning.size()/2);i++) {
550     float temp=binning[i];
551     binning[i]=binning[binning.size()-1-i];
552     binning[binning.size()-1-i]=temp;
553     }
554    
555     return binning;
556    
557 buchmann 1.3 }
558    
559 buchmann 1.4 void samplecollection::PickUpFromThisFile(int isamp, string cut, vector<string> &output, vector<string> &pickupfile) {
560     int lumi,eventNum,runNum;
561     float jzb[30];
562     (this->collection)[isamp].events->SetBranchAddress("jzb",&jzb);
563     (this->collection)[isamp].events->SetBranchAddress("lumi",&runNum);
564     (this->collection)[isamp].events->SetBranchAddress("eventNum",&eventNum);
565     (this->collection)[isamp].events->SetBranchAddress("lumi",&lumi);
566     (this->collection)[isamp].events->SetBranchAddress("runNum",&runNum);
567 buchmann 1.11
568 buchmann 1.4
569 buchmann 1.7 TTreeFormula *select = new TTreeFormula("select", cut.c_str()&&essentialcut, (this->collection)[isamp].events);
570     int npickedup=0;
571 buchmann 1.4 for (Int_t entry = 0 ; entry < (this->collection)[isamp].events->GetEntries() ; entry++) {
572     (this->collection)[isamp].events->LoadTree(entry);
573     if (select->EvalInstance()) {
574     (this->collection)[isamp].events->GetEntry(entry);
575 buchmann 1.8 dout << runNum << ":" << lumi << ":" << eventNum << endl;
576 buchmann 1.7 npickedup++;
577 buchmann 1.4 }
578     }
579 buchmann 1.8 dout << "Printed out a total of " << npickedup << " events" << endl;
580 buchmann 1.4 }
581    
582    
583    
584     void samplecollection::PickUpEvents(string cut) {
585     vector<string> output;
586     vector<string> pickupfile;
587     for (int isamp=0;isamp<this->collection.size();isamp++)
588     {
589     if((this->collection)[isamp].is_data) {
590     //we have a data sample !
591     this->PickUpFromThisFile(isamp,cut,output,pickupfile);
592     }
593     }
594     //do something with output and of course the pickup file!
595     }
596    
597    
598 buchmann 1.3 void switch_overunderflow(bool newpos=false) {
599     addoverunderflowbins=newpos;
600 fronga 1.10 }