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StandardHistFactoryPlotsWithCategories.C File Reference
Tutorials » RooStats Tutorials

Detailed Description

View in nbviewer Open in SWAN StandardHistFactoryPlotsWithCategories

This is a standard demo that can be used with any ROOT file prepared in the standard way. You specify:

  • name for input ROOT file
  • name of workspace inside ROOT file that holds model and data
  • name of ModelConfig that specifies details for calculator tools
  • name of dataset

With default parameters the macro will attempt to run the standard hist2workspace example and read the ROOT file that it produces.

The macro will scan through all the categories in a simPdf find the corresponding observable. For each category, it will loop through each of the nuisance parameters and plot

  • the data
  • the nominal model (blue)
  • the +Nsigma (red)
  • the -Nsigma (green)

You can specify how many sigma to vary by changing nSigmaToVary. You can also change the signal rate by changing muVal.

The script produces a lot plots, you can merge them by doing:

gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=merged.pdf `ls *pdf`
q
float * q
Definition THbookFile.cxx:89
␛[1mRooFit v3.60 -- Developed by Wouter Verkerke and David Kirkby␛[0m
Copyright (C) 2000-2013 NIKHEF, University of California & Stanford University
All rights reserved, please read http://roofit.sourceforge.net/license.txt
1) 0x562a3be8d460 RooRealVar:: alpha_syst2 = 0 L(-5 - 5) "alpha_syst2"
2) 0x562a3be92ba0 RooRealVar:: alpha_syst3 = 0 L(-5 - 5) "alpha_syst3"
3) 0x562a3bdec980 RooRealVar:: gamma_stat_channel1_bin_0 = 1 +/- 0.05 L(0 - 1.25) "gamma_stat_channel1_bin_0"
4) 0x562a3be08250 RooRealVar:: gamma_stat_channel1_bin_1 = 1 +/- 0.1 L(0 - 1.5) "gamma_stat_channel1_bin_1"
check expectedData by category
Is a simultaneous PDF
on type channel1
channelCat==channelCat::channel1
channel1 channel1
[#1] INFO:Plotting -- RooTreeData::plotOn: plotting 234 events out of 234 total events
[#1] INFO:InputArguments -- The formula select claims to use the variables (channelCat,obs_x_channel1) but only (channelCat) seem to be in use.
inputs: channelCat==channelCat::channel1
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
channelCat==channelCat::channel1
channel1 channel1
[#1] INFO:Plotting -- RooTreeData::plotOn: plotting 234 events out of 234 total events
[#1] INFO:InputArguments -- The formula select claims to use the variables (channelCat,obs_x_channel1) but only (channelCat) seem to be in use.
inputs: channelCat==channelCat::channel1
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
channelCat==channelCat::channel1
channel1 channel1
[#1] INFO:Plotting -- RooTreeData::plotOn: plotting 234 events out of 234 total events
[#1] INFO:InputArguments -- The formula select claims to use the variables (channelCat,obs_x_channel1) but only (channelCat) seem to be in use.
inputs: channelCat==channelCat::channel1
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
channelCat==channelCat::channel1
channel1 channel1
[#1] INFO:Plotting -- RooTreeData::plotOn: plotting 234 events out of 234 total events
[#1] INFO:InputArguments -- The formula select claims to use the variables (channelCat,obs_x_channel1) but only (channelCat) seem to be in use.
inputs: channelCat==channelCat::channel1
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(channel1_model_Int[obs_x_channel1]) using numeric integrator RooBinIntegrator to calculate Int(obs_x_channel1)
#include "TFile.h"
#include "TROOT.h"
#include "TCanvas.h"
#include "TList.h"
#include "TMath.h"
#include "TSystem.h"
#include "RooWorkspace.h"
#include "RooAbsData.h"
#include "RooRealVar.h"
#include "RooPlot.h"
#include "RooSimultaneous.h"
#include "RooCategory.h"
#include "RooStats/ModelConfig.h"
#include "RooStats/ProfileInspector.h"
using namespace RooFit;
using namespace RooStats;
using namespace std;
void StandardHistFactoryPlotsWithCategories(const char *infile = "", const char *workspaceName = "combined",
const char *modelConfigName = "ModelConfig",
const char *dataName = "obsData")
{
double nSigmaToVary = 5.;
double muVal = 0;
bool doFit = false;
// -------------------------------------------------------
// First part is just to access a user-defined file
// or create the standard example file if it doesn't exist
const char *filename = "";
if (!strcmp(infile, "")) {
filename = "results/example_combined_GaussExample_model.root";
bool fileExist = !gSystem->AccessPathName(filename); // note opposite return code
// if file does not exists generate with histfactory
if (!fileExist) {
#ifdef _WIN32
cout << "HistFactory file cannot be generated on Windows - exit" << endl;
return;
#endif
// Normally this would be run on the command line
cout << "will run standard hist2workspace example" << endl;
gROOT->ProcessLine(".! prepareHistFactory .");
gROOT->ProcessLine(".! hist2workspace config/example.xml");
cout << "\n\n---------------------" << endl;
cout << "Done creating example input" << endl;
cout << "---------------------\n\n" << endl;
}
} else
filename = infile;
// Try to open the file
TFile *file = TFile::Open(filename);
// if input file was specified byt not found, quit
if (!file) {
cout << "StandardRooStatsDemoMacro: Input file " << filename << " is not found" << endl;
return;
}
// -------------------------------------------------------
// Tutorial starts here
// -------------------------------------------------------
// get the workspace out of the file
RooWorkspace *w = (RooWorkspace *)file->Get(workspaceName);
if (!w) {
cout << "workspace not found" << endl;
return;
}
// get the modelConfig out of the file
ModelConfig *mc = (ModelConfig *)w->obj(modelConfigName);
// get the modelConfig out of the file
RooAbsData *data = w->data(dataName);
// make sure ingredients are found
if (!data || !mc) {
w->Print();
cout << "data or ModelConfig was not found" << endl;
return;
}
// -------------------------------------------------------
// now use the profile inspector
RooRealVar *obs = (RooRealVar *)mc->GetObservables()->first();
TList *list = new TList();
RooRealVar *firstPOI = dynamic_cast<RooRealVar *>(mc->GetParametersOfInterest()->first());
firstPOI->setVal(muVal);
// firstPOI->setConstant();
if (doFit) {
mc->GetPdf()->fitTo(*data);
}
// -------------------------------------------------------
mc->GetNuisanceParameters()->Print("v");
int nPlotsMax = 1000;
cout << " check expectedData by category" << endl;
RooDataSet *simData = NULL;
RooSimultaneous *simPdf = NULL;
if (strcmp(mc->GetPdf()->ClassName(), "RooSimultaneous") == 0) {
cout << "Is a simultaneous PDF" << endl;
simPdf = (RooSimultaneous *)(mc->GetPdf());
} else {
cout << "Is not a simultaneous PDF" << endl;
}
if (doFit) {
RooCategory *channelCat = (RooCategory *)(&simPdf->indexCat());
TIterator *iter = channelCat->typeIterator();
RooCatType *tt = NULL;
tt = (RooCatType *)iter->Next();
RooAbsPdf *pdftmp = ((RooSimultaneous *)mc->GetPdf())->getPdf(tt->GetName());
RooArgSet *obstmp = pdftmp->getObservables(*mc->GetObservables());
obs = ((RooRealVar *)obstmp->first());
RooPlot *frame = obs->frame();
cout << Form("%s==%s::%s", channelCat->GetName(), channelCat->GetName(), tt->GetName()) << endl;
cout << tt->GetName() << " " << channelCat->getLabel() << endl;
data->plotOn(frame, MarkerSize(1),
Cut(Form("%s==%s::%s", channelCat->GetName(), channelCat->GetName(), tt->GetName())),
DataError(RooAbsData::None));
Double_t normCount =
data->sumEntries(Form("%s==%s::%s", channelCat->GetName(), channelCat->GetName(), tt->GetName()));
pdftmp->plotOn(frame, LineWidth(2.), Normalization(normCount, RooAbsReal::NumEvent));
frame->Draw();
cout << "expected events = " << mc->GetPdf()->expectedEvents(*data->get()) << endl;
return;
}
int nPlots = 0;
if (!simPdf) {
TIterator *it = mc->GetNuisanceParameters()->createIterator();
RooRealVar *var = NULL;
while ((var = (RooRealVar *)it->Next()) != NULL) {
RooPlot *frame = obs->frame();
frame->SetYTitle(var->GetName());
data->plotOn(frame, MarkerSize(1));
var->setVal(0);
mc->GetPdf()->plotOn(frame, LineWidth(1.));
var->setVal(1);
mc->GetPdf()->plotOn(frame, LineColor(kRed), LineStyle(kDashed), LineWidth(1));
var->setVal(-1);
mc->GetPdf()->plotOn(frame, LineColor(kGreen), LineStyle(kDashed), LineWidth(1));
list->Add(frame);
var->setVal(0);
}
} else {
RooCategory *channelCat = (RooCategory *)(&simPdf->indexCat());
// TIterator* iter = simPdf->indexCat().typeIterator() ;
TIterator *iter = channelCat->typeIterator();
RooCatType *tt = NULL;
while (nPlots < nPlotsMax && (tt = (RooCatType *)iter->Next())) {
cout << "on type " << tt->GetName() << " " << endl;
// Get pdf associated with state from simpdf
RooAbsPdf *pdftmp = simPdf->getPdf(tt->GetName());
// Generate observables defined by the pdf associated with this state
RooArgSet *obstmp = pdftmp->getObservables(*mc->GetObservables());
// obstmp->Print();
obs = ((RooRealVar *)obstmp->first());
TIterator *it = mc->GetNuisanceParameters()->createIterator();
RooRealVar *var = NULL;
while (nPlots < nPlotsMax && (var = (RooRealVar *)it->Next())) {
TCanvas *c2 = new TCanvas("c2");
RooPlot *frame = obs->frame();
frame->SetName(Form("frame%d", nPlots));
frame->SetYTitle(var->GetName());
cout << Form("%s==%s::%s", channelCat->GetName(), channelCat->GetName(), tt->GetName()) << endl;
cout << tt->GetName() << " " << channelCat->getLabel() << endl;
data->plotOn(frame, MarkerSize(1),
Cut(Form("%s==%s::%s", channelCat->GetName(), channelCat->GetName(), tt->GetName())),
DataError(RooAbsData::None));
Double_t normCount =
data->sumEntries(Form("%s==%s::%s", channelCat->GetName(), channelCat->GetName(), tt->GetName()));
if (strcmp(var->GetName(), "Lumi") == 0) {
cout << "working on lumi" << endl;
var->setVal(w->var("nominalLumi")->getVal());
var->Print();
} else {
var->setVal(0);
}
// w->allVars().Print("v");
// mc->GetNuisanceParameters()->Print("v");
// pdftmp->plotOn(frame,LineWidth(2.));
// mc->GetPdf()->plotOn(frame,LineWidth(2.),Slice(*channelCat,tt->GetName()),ProjWData(*data));
// pdftmp->plotOn(frame,LineWidth(2.),Slice(*channelCat,tt->GetName()),ProjWData(*data));
normCount = pdftmp->expectedEvents(*obs);
pdftmp->plotOn(frame, LineWidth(2.), Normalization(normCount, RooAbsReal::NumEvent));
if (strcmp(var->GetName(), "Lumi") == 0) {
cout << "working on lumi" << endl;
var->setVal(w->var("nominalLumi")->getVal() + 0.05);
var->Print();
} else {
var->setVal(nSigmaToVary);
}
// pdftmp->plotOn(frame,LineColor(kRed),LineStyle(kDashed),LineWidth(2));
// mc->GetPdf()->plotOn(frame,LineColor(kRed),LineStyle(kDashed),LineWidth(2.),Slice(*channelCat,tt->GetName()),ProjWData(*data));
// pdftmp->plotOn(frame,LineColor(kRed),LineStyle(kDashed),LineWidth(2.),Slice(*channelCat,tt->GetName()),ProjWData(*data));
normCount = pdftmp->expectedEvents(*obs);
pdftmp->plotOn(frame, LineWidth(2.), LineColor(kRed), LineStyle(kDashed),
Normalization(normCount, RooAbsReal::NumEvent));
if (strcmp(var->GetName(), "Lumi") == 0) {
cout << "working on lumi" << endl;
var->setVal(w->var("nominalLumi")->getVal() - 0.05);
var->Print();
} else {
var->setVal(-nSigmaToVary);
}
// pdftmp->plotOn(frame,LineColor(kGreen),LineStyle(kDashed),LineWidth(2));
// mc->GetPdf()->plotOn(frame,LineColor(kGreen),LineStyle(kDashed),LineWidth(2),Slice(*channelCat,tt->GetName()),ProjWData(*data));
// pdftmp->plotOn(frame,LineColor(kGreen),LineStyle(kDashed),LineWidth(2),Slice(*channelCat,tt->GetName()),ProjWData(*data));
normCount = pdftmp->expectedEvents(*obs);
pdftmp->plotOn(frame, LineWidth(2.), LineColor(kGreen), LineStyle(kDashed),
Normalization(normCount, RooAbsReal::NumEvent));
// set them back to normal
if (strcmp(var->GetName(), "Lumi") == 0) {
cout << "working on lumi" << endl;
var->setVal(w->var("nominalLumi")->getVal());
var->Print();
} else {
var->setVal(0);
}
list->Add(frame);
// quit making plots
++nPlots;
frame->Draw();
c2->SaveAs(Form("%s_%s_%s.pdf", tt->GetName(), obs->GetName(), var->GetName()));
delete c2;
}
}
}
// -------------------------------------------------------
// now make plots
TCanvas *c1 = new TCanvas("c1", "ProfileInspectorDemo", 800, 200);
if (list->GetSize() > 4) {
double n = list->GetSize();
int nx = (int)sqrt(n);
int ny = TMath::CeilNint(n / nx);
nx = TMath::CeilNint(sqrt(n));
c1->Divide(ny, nx);
} else
c1->Divide(list->GetSize());
for (int i = 0; i < list->GetSize(); ++i) {
c1->cd(i + 1);
list->At(i)->Draw();
}
}
Double_t
double Double_t
Definition RtypesCore.h:59
kRed
@ kRed
Definition Rtypes.h:66
kGreen
@ kGreen
Definition Rtypes.h:66
kDashed
@ kDashed
Definition TAttLine.h:48
sqrt
double sqrt(double)
gROOT
#define gROOT
Definition TROOT.h:406
Form
char * Form(const char *fmt,...)
gSystem
R__EXTERN TSystem * gSystem
Definition TSystem.h:559
RooAbsArg::getObservables
RooArgSet * getObservables(const RooArgSet &set, Bool_t valueOnly=kTRUE) const
Given a set of possible observables, return the observables that this PDF depends on.
Definition RooAbsArg.h:313
RooAbsArg::Print
virtual void Print(Option_t *options=0) const
Print the object to the defaultPrintStream().
Definition RooAbsArg.h:340
RooAbsCategory::typeIterator
TIterator * typeIterator() const
Definition RooAbsCategory.cxx:653
RooAbsCategory::getLabel
const char * getLabel() const
Retrieve current label. Use getCurrentLabel() for more clarity.
Definition RooAbsCategory.h:134
RooAbsCollection::first
RooAbsArg * first() const
Definition RooAbsCollection.h:187
RooAbsCollection::Print
virtual void Print(Option_t *options=0) const
This method must be overridden when a class wants to print itself.
Definition RooAbsCollection.h:210
RooAbsCollection::createIterator
TIterator * createIterator(Bool_t dir=kIterForward) const
TIterator-style iteration over contained elements.
Definition RooAbsCollection.h:129
RooAbsData
RooAbsData is the common abstract base class for binned and unbinned datasets.
Definition RooAbsData.h:49
RooAbsData::get
virtual const RooArgSet * get() const
Definition RooAbsData.h:92
RooAbsData::sumEntries
virtual Double_t sumEntries() const =0
Return effective number of entries in dataset, i.e., sum all weights.
RooAbsData::plotOn
virtual RooPlot * plotOn(RooPlot *frame, const RooCmdArg &arg1=RooCmdArg::none(), const RooCmdArg &arg2=RooCmdArg::none(), const RooCmdArg &arg3=RooCmdArg::none(), const RooCmdArg &arg4=RooCmdArg::none(), const RooCmdArg &arg5=RooCmdArg::none(), const RooCmdArg &arg6=RooCmdArg::none(), const RooCmdArg &arg7=RooCmdArg::none(), const RooCmdArg &arg8=RooCmdArg::none()) const
Definition RooAbsData.cxx:547
RooAbsPdf::fitTo
virtual RooFitResult * fitTo(RooAbsData &data, const RooCmdArg &arg1=RooCmdArg::none(), const RooCmdArg &arg2=RooCmdArg::none(), const RooCmdArg &arg3=RooCmdArg::none(), const RooCmdArg &arg4=RooCmdArg::none(), const RooCmdArg &arg5=RooCmdArg::none(), const RooCmdArg &arg6=RooCmdArg::none(), const RooCmdArg &arg7=RooCmdArg::none(), const RooCmdArg &arg8=RooCmdArg::none())
Fit PDF to given dataset.
Definition RooAbsPdf.cxx:1410
RooAbsPdf::expectedEvents
virtual Double_t expectedEvents(const RooArgSet *nset) const
Return expected number of events from this p.d.f for use in extended likelihood calculations.
Definition RooAbsPdf.cxx:3319
RooAbsPdf::plotOn
virtual RooPlot * plotOn(RooPlot *frame, const RooCmdArg &arg1=RooCmdArg::none(), const RooCmdArg &arg2=RooCmdArg::none(), const RooCmdArg &arg3=RooCmdArg::none(), const RooCmdArg &arg4=RooCmdArg::none(), const RooCmdArg &arg5=RooCmdArg::none(), const RooCmdArg &arg6=RooCmdArg::none(), const RooCmdArg &arg7=RooCmdArg::none(), const RooCmdArg &arg8=RooCmdArg::none(), const RooCmdArg &arg9=RooCmdArg::none(), const RooCmdArg &arg10=RooCmdArg::none()) const
Helper calling plotOn(RooPlot*, RooLinkedList&) const.
Definition RooAbsPdf.h:121
RooAbsRealLValue::frame
RooPlot * frame(const RooCmdArg &arg1, const RooCmdArg &arg2=RooCmdArg::none(), const RooCmdArg &arg3=RooCmdArg::none(), const RooCmdArg &arg4=RooCmdArg::none(), const RooCmdArg &arg5=RooCmdArg::none(), const RooCmdArg &arg6=RooCmdArg::none(), const RooCmdArg &arg7=RooCmdArg::none(), const RooCmdArg &arg8=RooCmdArg::none()) const
Create a new RooPlot on the heap with a drawing frame initialized for this object,...
Definition RooAbsRealLValue.cxx:199
RooAbsReal::getVal
Double_t getVal(const RooArgSet *normalisationSet=nullptr) const
Evaluate object.
Definition RooAbsReal.h:91
RooArgSet
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition RooArgSet.h:29
RooCatType
RooCatType is an auxilary class for RooAbsCategory and defines a a single category state.
Definition RooCatTypeLegacy.h:23
RooCatType::GetName
virtual const Text_t * GetName() const
Returns name of object.
Definition RooCatTypeLegacy.h:45
RooCategory
RooCategory is an object to represent discrete states.
Definition RooCategory.h:27
RooDataSet
RooDataSet is a container class to hold unbinned data.
Definition RooDataSet.h:33
RooPlot
A RooPlot is a plot frame and a container for graphics objects within that frame.
Definition RooPlot.h:44
RooPlot::SetName
void SetName(const char *name)
Set the name of the RooPlot to 'name'.
Definition RooPlot.cxx:1220
RooPlot::SetYTitle
void SetYTitle(const char *title)
Definition RooPlot.cxx:1335
RooPlot::Draw
virtual void Draw(Option_t *options=0)
Draw this plot and all of the elements it contains.
Definition RooPlot.cxx:691
RooRealVar
RooRealVar represents a variable that can be changed from the outside.
Definition RooRealVar.h:39
RooRealVar::setVal
virtual void setVal(Double_t value)
Set value of variable to 'value'.
Definition RooRealVar.cxx:282
RooSimultaneous
RooSimultaneous facilitates simultaneous fitting of multiple PDFs to subsets of a given dataset.
Definition RooSimultaneous.h:37
RooSimultaneous::indexCat
const RooAbsCategoryLValue & indexCat() const
Definition RooSimultaneous.h:80
RooSimultaneous::getPdf
RooAbsPdf * getPdf(const char *catName) const
Return the p.d.f associated with the given index category name.
Definition RooSimultaneous.cxx:351
RooStats::ModelConfig
ModelConfig is a simple class that holds configuration information specifying how a model should be u...
Definition ModelConfig.h:30
RooStats::ModelConfig::GetParametersOfInterest
const RooArgSet * GetParametersOfInterest() const
get RooArgSet containing the parameter of interest (return NULL if not existing)
Definition ModelConfig.h:237
RooStats::ModelConfig::GetNuisanceParameters
const RooArgSet * GetNuisanceParameters() const
get RooArgSet containing the nuisance parameters (return NULL if not existing)
Definition ModelConfig.h:240
RooStats::ModelConfig::GetObservables
const RooArgSet * GetObservables() const
get RooArgSet for observables (return NULL if not existing)
Definition ModelConfig.h:249
RooStats::ModelConfig::GetPdf
RooAbsPdf * GetPdf() const
get model PDF (return NULL if pdf has not been specified or does not exist)
Definition ModelConfig.h:234
RooWorkspace
The RooWorkspace is a persistable container for RooFit projects.
Definition RooWorkspace.h:43
RooWorkspace::data
RooAbsData * data(const char *name) const
Retrieve dataset (binned or unbinned) with given name. A null pointer is returned if not found.
Definition RooWorkspace.cxx:1368
RooWorkspace::Print
void Print(Option_t *opts=0) const
Print contents of the workspace.
Definition RooWorkspace.cxx:2194
RooWorkspace::var
RooRealVar * var(const char *name) const
Retrieve real-valued variable (RooRealVar) with given name. A null pointer is returned if not found.
Definition RooWorkspace.cxx:1295
RooWorkspace::obj
TObject * obj(const char *name) const
Return any type of object (RooAbsArg, RooAbsData or generic object) with given name)
Definition RooWorkspace.cxx:2106
TCanvas
The Canvas class.
Definition TCanvas.h:23
TCollection::GetSize
virtual Int_t GetSize() const
Return the capacity of the collection, i.e.
Definition TCollection.h:182
TFile
A ROOT file is a suite of consecutive data records (TKey instances) with a well defined format.
Definition TFile.h:54
TFile::Open
static TFile * Open(const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0)
Create / open a file.
Definition TFile.cxx:3997
TIterator
Iterator abstract base class.
Definition TIterator.h:30
TIterator::Next
virtual TObject * Next()=0
TList
A doubly linked list.
Definition TList.h:44
TList::Add
virtual void Add(TObject *obj)
Definition TList.h:87
TList::At
virtual TObject * At(Int_t idx) const
Returns the object at position idx. Returns 0 if idx is out of range.
Definition TList.cxx:357
TNamed::GetName
virtual const char * GetName() const
Returns name of object.
Definition TNamed.h:47
TObject::ClassName
virtual const char * ClassName() const
Returns name of class to which the object belongs.
Definition TObject.cxx:130
TObject::Draw
virtual void Draw(Option_t *option="")
Default Draw method for all objects.
Definition TObject.cxx:197
TSystem::AccessPathName
virtual Bool_t AccessPathName(const char *path, EAccessMode mode=kFileExists)
Returns FALSE if one can access a file using the specified access mode.
Definition TSystem.cxx:1294
RooFit::DataError
RooCmdArg DataError(Int_t)
Definition RooGlobalFunc.cxx:157
RooFit::LineWidth
RooCmdArg LineWidth(Width_t width)
Definition RooGlobalFunc.cxx:59
RooFit::MarkerSize
RooCmdArg MarkerSize(Size_t size)
Definition RooGlobalFunc.cxx:87
RooFit::Cut
RooCmdArg Cut(const char *cutSpec)
Definition RooGlobalFunc.cxx:81
RooFit::LineColor
RooCmdArg LineColor(Color_t color)
Definition RooGlobalFunc.cxx:57
RooFit::Normalization
RooCmdArg Normalization(Double_t scaleFactor)
Definition RooGlobalFunc.cxx:52
RooFit::LineStyle
RooCmdArg LineStyle(Style_t style)
Definition RooGlobalFunc.cxx:58
c1
return c1
Definition legend1.C:41
n
const Int_t n
Definition legend1.C:16
c2
return c2
Definition legend2.C:14
RooFit
The namespace RooFit contains mostly switches that change the behaviour of functions of PDFs (or othe...
Definition RooCFunction1Binding.h:29
RooStats
Namespace for the RooStats classes.
Definition Asimov.h:19
TMath::CeilNint
Int_t CeilNint(Double_t x)
Definition TMath.h:699
file
Definition file.py:1
tt
auto * tt
Definition textangle.C:16
Author
Kyle Cranmer

Definition in file StandardHistFactoryPlotsWithCategories.C.