ROOT   Reference Guide
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RooAddPdf is an efficient implementation of a sum of PDFs of the form.

$\sum_{i=1}^{n} c_i \cdot \mathrm{PDF}_i$

or

$c_1\cdot\mathrm{PDF}_1 + c_2\cdot\mathrm{PDF}_2 \; + \; ... \; + \; \left( 1-\sum_{i=1}^{n-1}c_i \right) \cdot \mathrm{PDF}_n$

The first form is for extended likelihood fits, where the expected number of events is $$\sum_i c_i$$. The coefficients $$c_i$$ can either be explicitly provided, or, if all components support extended likelihood fits, they can be calculated from the contribution of each PDF to the total expected number of events.

In the second form, the sum of the coefficients is required to be 1 or less, and the coefficient of the last PDF is calculated automatically from the condition that the sum of all coefficients has to be 1.

Recursive coefficients

It is also possible to parameterise the coefficients recursively

$\sum_{i=1}^n c_i \prod_{j=1}^{i-1} \left[ (1-c_j) \right] \cdot \mathrm{PDF}_i \\ = c_1 \cdot \mathrm{PDF}_1 + (1-c_1)\, c_2 \cdot \mathrm{PDF}_2 + \ldots + (1-c_1)\ldots(1-c_{n-1}) \cdot 1 \cdot \mathrm{PDF}_n \\$

In this form the sum of the coefficients is always less than 1.0 for all possible values of the individual coefficients between 0 and 1.

Note
Don't pass the $$n^\mathrm{th}$$ coefficient. It is always 1, since the normalisation condition removes one degree of freedom.

RooAddPdf relies on each component PDF to be normalized and will perform no normalization other than calculating the proper last coefficient $$c_n$$, if requested. An (enforced) condition for this assumption is that each $$\mathrm{PDF}_i$$ is independent of each $$c_i$$.

Difference between RooAddPdf / RooRealSumFunc / RooRealSumPdf

• RooAddPdf is a PDF of PDFs, i.e. its components need to be normalised and non-negative.
• RooRealSumPdf is a PDF of functions, i.e., its components can be negative, but their sum cannot be. The normalisation is computed automatically, unless the PDF is extended (see above).
• RooRealSumFunc is a sum of functions. It is neither normalised, nor need it be positive.

Definition at line 32 of file RooAddPdf.h.

Classes

class  CacheElem
Transient cache with transformed values of coefficients. More...

Public Member Functions

RooAddPdf (const char *name, const char *title, const RooArgList &pdfList)
Generic constructor from list of extended PDFs.

RooAddPdf (const char *name, const char *title, const RooArgList &pdfList, const RooArgList &coefList, bool recursiveFraction=false)
Generic constructor from list of PDFs and list of coefficients.

RooAddPdf (const char *name, const char *title, RooAbsPdf &pdf1, RooAbsPdf &pdf2, RooAbsReal &coef1)
Constructor with two PDFs and one coefficient.

RooAddPdf (const char *name, const char *title=0)
Dummy constructor.

Copy constructor.

Double_t analyticalIntegralWN (Int_t code, const RooArgSet *normSet, const char *rangeName=0) const override
Return analytical integral defined by given scenario code.

std::list< Double_t > * binBoundaries (RooAbsRealLValue &, Double_t, Double_t) const override
Loop over components for plot sampling hints and merge them if there are multiple.

CacheMode canNodeBeCached () const override

bool checkObservables (const RooArgSet *nset) const override
Check if PDF is valid for given normalization set.

TObjectclone (const char *newname) const override

const RooArgListcoefList () const

Double_t expectedEvents (const RooArgSet *nset) const override
Return expected number of events for extended likelihood calculation, which is the sum of all coefficients.

ExtendMode extendMode () const override
Returns ability of PDF to provide extended likelihood terms.

void fixCoefNormalization (const RooArgSet &refCoefNorm)
By default the interpretation of the fraction coefficients is performed in the contextual choice of observables.

void fixCoefRange (const char *rangeName)
By default, fraction coefficients are assumed to refer to the default fit range.

bool forceAnalyticalInt (const RooAbsArg &) const override
Force RooRealIntegral to offer all observables for internal integration.

Int_t getAnalyticalIntegralWN (RooArgSet &allVars, RooArgSet &numVars, const RooArgSet *normSet, const char *rangeName=0) const override
Determine which part (if any) of given integral can be performed analytically.

const RooArgSetgetCoefNormalization () const

const char * getCoefRange () const

bool isBinnedDistribution (const RooArgSet &obs) const override
If all components that depend on obs are binned, so is their sum.

const RooArgListpdfList () const

std::list< Double_t > * plotSamplingHint (RooAbsRealLValue &obs, Double_t xlo, Double_t xhi) const override
Loop over components for plot sampling hints and merge them if there are multiple.

void printMetaArgs (std::ostream &os) const override
Customized printing of arguments of a RooAddPdf to more intuitively reflect the contents of the product operator construction.

void resetErrorCounters (Int_t resetValue=10) override
Reset error counter to given value, limiting the number of future error messages for this pdf to 'resetValue'.

bool selfNormalized () const override
Shows if a PDF is self-normalized, which means that no attempt is made to add a normalization term.

void setCacheAndTrackHints (RooArgSet &) override
Label OK'ed components of a RooAddPdf with cache-and-track.

Public Member Functions inherited from RooAbsPdf
RooAbsPdf ()
Default constructor.

RooAbsPdf (const char *name, const char *title, Double_t minVal, Double_t maxVal)
Constructor with name, title, and plot range.

RooAbsPdf (const char *name, const char *title=0)
Constructor with name and title only.

virtual ~RooAbsPdf ()
Destructor.

virtual RooAbsGenContextautoGenContext (const RooArgSet &vars, const RooDataSet *prototype=0, const RooArgSet *auxProto=0, Bool_t verbose=kFALSE, Bool_t autoBinned=kTRUE, const char *binnedTag="") const

virtual RooAbsGenContextbinnedGenContext (const RooArgSet &vars, Bool_t verbose=kFALSE) const
Return a binned generator context.

Bool_t canBeExtended () const
If true, PDF can provide extended likelihood term.

virtual RooFitResultchi2FitTo (RooDataHist &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())
Perform a $$\chi^2$$ fit to given histogram.

virtual RooFitResultchi2FitTo (RooDataHist &data, const RooLinkedList &cmdList)
Perform a $$\chi^2$$ fit to given histogram.

virtual RooFitResultchi2FitTo (RooDataHist &data, const RooLinkedList &cmdList)
Calls RooAbsPdf::createChi2(RooDataSet& data, const RooLinkedList& cmdList) and returns fit result.

virtual RooFitResultchi2FitTo (RooDataSet &xydata, 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())
Perform a 2-D $$\chi^2$$ fit using a series of x and y values stored in the dataset xydata.

virtual RooFitResultchi2FitTo (RooDataSet &xydata, const RooLinkedList &cmdList)
Perform a 2-D $$\chi^2$$ fit using a series of x and y values stored in the dataset xydata.

RooAbsRealcreateCdf (const RooArgSet &iset, const RooArgSet &nset=RooArgSet())
Create a cumulative distribution function of this p.d.f in terms of the observables listed in iset.

RooAbsRealcreateCdf (const RooArgSet &iset, 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())
Create an object that represents the integral of the function over one or more observables listed in iset.

virtual RooAbsRealcreateChi2 (RooDataHist &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())
Create a $$\chi^2$$ variable from a histogram and this function.

virtual RooAbsRealcreateChi2 (RooDataHist &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())
Create a $$\chi^2$$ from a histogram and this function.

virtual RooAbsRealcreateChi2 (RooDataHist &data, const RooLinkedList &cmdList)
Create a $$\chi^2$$ variable from a histogram and this function.

virtual RooAbsRealcreateChi2 (RooDataSet &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())
Create a $$\chi^2$$ from a series of x and y values stored in a dataset.

virtual RooAbsRealcreateChi2 (RooDataSet &data, const RooLinkedList &cmdList)
See RooAbsReal::createChi2(RooDataSet&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&)

virtual RooAbsRealcreateChi2 (RooDataSet &data, const RooLinkedList &cmdList)
Argument-list version of RooAbsPdf::createChi2()

virtual RooAbsRealcreateNLL (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())
Construct representation of -log(L) of PDF with given dataset.

virtual RooAbsRealcreateNLL (RooAbsData &data, const RooLinkedList &cmdList)
Construct representation of -log(L) of PDFwith given dataset.

virtual RooAbsPdfcreateProjection (const RooArgSet &iset)
Return a p.d.f that represent a projection of this p.d.f integrated over given observables.

RooAbsRealcreateScanCdf (const RooArgSet &iset, const RooArgSet &nset, Int_t numScanBins, Int_t intOrder)

double expectedEvents (const RooArgSet &nset) const
Return expected number of events to be used in calculation of extended likelihood.

double extendedTerm (double sumEntries, double expected, double sumEntriesW2=0.0) const

double extendedTerm (double sumEntries, RooArgSet const *nset, double sumEntriesW2=0.0) const
Return the extended likelihood term ( $$N_\mathrm{expect} - N_\mathrm{observed} \cdot \log(N_\mathrm{expect}$$) of this PDF for the given number of observed events.

double extendedTerm (RooAbsData const &data, bool weightSquared) const
Return the extended likelihood term ( $$N_\mathrm{expect} - N_\mathrm{observed} \cdot \log(N_\mathrm{expect}$$) of this PDF for the given number of observed events.

virtual RooFitResultfitTo (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.

virtual RooFitResultfitTo (RooAbsData &data, const RooLinkedList &cmdList)
Fit PDF to given dataset.

RooDataSetgenerate (const RooArgSet &whatVars, 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())
Generate a new dataset containing the specified variables with events sampled from our distribution.

RooDataSetgenerate (const RooArgSet &whatVars, const RooDataSet &prototype, Int_t nEvents=0, Bool_t verbose=kFALSE, Bool_t randProtoOrder=kFALSE, Bool_t resampleProto=kFALSE) const
Generate a new dataset using a prototype dataset as a model, with values of the variables in whatVars sampled from our distribution.

RooDataSetgenerate (const RooArgSet &whatVars, Double_t nEvents=0, Bool_t verbose=kFALSE, Bool_t autoBinned=kTRUE, const char *binnedTag="", Bool_t expectedData=kFALSE, Bool_t extended=kFALSE) const
Generate a new dataset containing the specified variables with events sampled from our distribution.

RooDataSetgenerate (const RooArgSet &whatVars, Int_t nEvents, const RooCmdArg &arg1, const RooCmdArg &arg2=RooCmdArg::none(), const RooCmdArg &arg3=RooCmdArg::none(), const RooCmdArg &arg4=RooCmdArg::none(), const RooCmdArg &arg5=RooCmdArg::none())
See RooAbsPdf::generate(const RooArgSet&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&,const RooCmdArg&)

RooDataSetgenerate (GenSpec &) const
Generate according to GenSpec obtained from prepareMultiGen().

virtual RooDataHistgenerateBinned (const RooArgSet &whatVars, 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
Generate a new dataset containing the specified variables with events sampled from our distribution.

virtual RooDataHistgenerateBinned (const RooArgSet &whatVars, Double_t nEvents, Bool_t expectedData=kFALSE, Bool_t extended=kFALSE) const
Generate a new dataset containing the specified variables with events sampled from our distribution.

virtual RooDataHistgenerateBinned (const RooArgSet &whatVars, Double_t nEvents, const RooCmdArg &arg1, const RooCmdArg &arg2=RooCmdArg::none(), const RooCmdArg &arg3=RooCmdArg::none(), const RooCmdArg &arg4=RooCmdArg::none(), const RooCmdArg &arg5=RooCmdArg::none()) const
As RooAbsPdf::generateBinned(const RooArgSet&, const RooCmdArg&,const RooCmdArg&, const RooCmdArg&,const RooCmdArg&, const RooCmdArg&,const RooCmdArg&)

virtual void generateEvent (Int_t code)
Interface for generation of an event using the algorithm corresponding to the specified code.

virtual RooDataSetgenerateSimGlobal (const RooArgSet &whatVars, Int_t nEvents)
Special generator interface for generation of 'global observables' – for RooStats tools.

virtual RooArgSetgetAllConstraints (const RooArgSet &observables, RooArgSet &constrainedParams, Bool_t stripDisconnected=kTRUE) const
This helper function finds and collects all constraints terms of all component p.d.f.s and returns a RooArgSet with all those terms.

virtual RooArgSetgetConstraints (const RooArgSet &, RooArgSet &, Bool_t) const

virtual Int_t getGenerator (const RooArgSet &directVars, RooArgSet &generateVars, Bool_t staticInitOK=kTRUE) const
Load generatedVars with the subset of directVars that we can generate events for, and return a code that specifies the generator algorithm we will use.

const RooNumGenConfiggetGeneratorConfig () const
Return the numeric MC generator configuration used for this object.

RooSpan< const doublegetLogProbabilities (RooBatchCompute::RunContext &evalData, const RooArgSet *normSet=nullptr) const
Compute the log-likelihoods for all events in the requested batch.

void getLogProbabilities (RooSpan< const double > pdfValues, double *output) const

virtual Double_t getLogVal (const RooArgSet *set=0) const
Return the log of the current value with given normalization An error message is printed if the argument of the log is negative.

RooSpan< const doublegetLogValBatch (std::size_t begin, std::size_t batchSize, const RooArgSet *normSet=nullptr) const

Double_t getNorm (const RooArgSet &nset) const
Get normalisation term needed to normalise the raw values returned by getVal().

virtual Double_t getNorm (const RooArgSet *set=0) const
Get normalisation term needed to normalise the raw values returned by getVal().

const RooAbsRealgetNormIntegral (const RooArgSet &nset) const

virtual const RooAbsRealgetNormObj (const RooArgSet *set, const RooArgSet *iset, const TNamed *rangeName=0) const
Return pointer to RooAbsReal object that implements calculation of integral over observables iset in range rangeName, optionally taking the integrand normalized over observables nset.

std::vector< doublegetValues (RooAbsData const &data, RooFit::BatchModeOption batchMode=RooFit::BatchModeOption::Cpu) const

RooSpan< const doublegetValues (RooBatchCompute::RunContext &evalData, const RooArgSet *normSet) const
Compute batch of values for given input data, and normalise by integrating over the observables in normSet.

virtual RooSpan< const doublegetValues (RooBatchCompute::RunContext &evalData, const RooArgSet *normSet=nullptr) const

virtual void initGenerator (Int_t code)
Interface for one-time initialization to setup the generator for the specified code.

virtual Bool_t isDirectGenSafe (const RooAbsArg &arg) const
Check if given observable can be safely generated using the pdfs internal generator mechanism (if that existsP).

std::unique_ptr< RooFitResultminimizeNLL (RooAbsReal &nll, RooAbsData const &data, MinimizerConfig const &cfg)
Minimizes a given NLL variable by finding the optimal parameters with the RooMinimzer.

Bool_t mustBeExtended () const
If true PDF must provide extended likelihood term.

const char * normRange () const

virtual RooPlotparamOn (RooPlot *frame, const RooAbsData *data, const char *label="", Int_t sigDigits=2, Option_t *options="NELU", Double_t xmin=0.65, Double_t xmax=0.9, Double_t ymax=0.9)

virtual RooPlotparamOn (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())
Add a box with parameter values (and errors) to the specified frame.

virtual RooPlotplotOn (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

virtual RooPlotplotOn (RooPlot *frame, RooLinkedList &cmdList) const
Plot (project) PDF on specified frame.

GenSpecprepareMultiGen (const RooArgSet &whatVars, 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())
Prepare GenSpec configuration object for efficient generation of multiple datasets from identical specification.

virtual void printMultiline (std::ostream &os, Int_t contents, Bool_t verbose=kFALSE, TString indent="") const
Print multi line detailed information of this RooAbsPdf.

virtual void printValue (std::ostream &os) const
Print value of p.d.f, also print normalization integral that was last used, if any.

void setGeneratorConfig ()
Remove the specialized numeric MC generator configuration associated with this object.

void setGeneratorConfig (const RooNumGenConfig &config)
Set the given configuration as default numeric MC generator configuration for this object.

void setNormRange (const char *rangeName)

void setNormRangeOverride (const char *rangeName)

void setTraceCounter (Int_t value, Bool_t allNodes=kFALSE)
Reset trace counter to given value, limiting the number of future trace messages for this pdf to 'value'.

RooNumGenConfigspecialGeneratorConfig () const
Returns the specialized integrator configuration for this RooAbsReal.

RooNumGenConfigspecialGeneratorConfig (Bool_t createOnTheFly)
Returns the specialized integrator configuration for this RooAbsReal.

Public Member Functions inherited from RooAbsReal
RooAbsReal ()
coverity[UNINIT_CTOR] Default constructor

RooAbsReal (const char *name, const char *title, const char *unit="")
Constructor with unit label.

RooAbsReal (const char *name, const char *title, Double_t minVal, Double_t maxVal, const char *unit="")
Constructor with plot range and unit label.

RooAbsReal (const RooAbsReal &other, const char *name=0)
Copy constructor.

virtual ~RooAbsReal ()
Destructor.

virtual Double_t analyticalIntegral (Int_t code, const char *rangeName=0) const
Implements the actual analytical integral(s) advertised by getAnalyticalIntegral.

TF1asTF (const RooArgList &obs, const RooArgList &pars=RooArgList(), const RooArgSet &nset=RooArgSet()) const
Return a ROOT TF1,2,3 object bound to this RooAbsReal with given definition of observables and parameters.

RooAbsFuncbindVars (const RooArgSet &vars, const RooArgSet *nset=0, Bool_t clipInvalid=kFALSE) const
Create an interface adaptor f(vars) that binds us to the specified variables (in arbitrary order).

RooAbsArgcreateFundamental (const char *newname=0) const
Create a RooRealVar fundamental object with our properties.

TH1createHistogram (const char *name, const RooAbsRealLValue &xvar, 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
Create and fill a ROOT histogram TH1, TH2 or TH3 with the values of this function.

TH1createHistogram (const char *name, const RooAbsRealLValue &xvar, RooLinkedList &argList) const
Internal method implementing createHistogram.

TH1createHistogram (const char *varNameList, Int_t xbins=0, Int_t ybins=0, Int_t zbins=0) const
Create and fill a ROOT histogram TH1, TH2 or TH3 with the values of this function for the variables with given names.

RooAbsRealcreateIntegral (const RooArgSet &iset, const char *rangeName) const
Create integral over observables in iset in range named rangeName.

RooAbsRealcreateIntegral (const RooArgSet &iset, const RooArgSet &nset, const char *rangeName=0) const
Create integral over observables in iset in range named rangeName with integrand normalized over observables in nset.

RooAbsRealcreateIntegral (const RooArgSet &iset, const RooArgSet &nset, const RooNumIntConfig &cfg, const char *rangeName=0) const
Create integral over observables in iset in range named rangeName with integrand normalized over observables in nset while using specified configuration for any numeric integration.

virtual RooAbsRealcreateIntegral (const RooArgSet &iset, const RooArgSet *nset=0, const RooNumIntConfig *cfg=0, const char *rangeName=0) const
Create an object that represents the integral of the function over one or more observables listed in iset.

RooAbsRealcreateIntegral (const RooArgSet &iset, 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 an object that represents the integral of the function over one or more observables listed in iset.

RooAbsRealcreateIntegral (const RooArgSet &iset, const RooNumIntConfig &cfg, const char *rangeName=0) const
Create integral over observables in iset in range named rangeName using specified configuration for any numeric integration.

RooAbsRealcreateIntRI (const RooArgSet &iset, const RooArgSet &nset=RooArgSet())
Utility function for createRunningIntegral.

const RooAbsRealcreatePlotProjection (const RooArgSet &dependentVars, const RooArgSet *projectedVars, RooArgSet *&cloneSet, const char *rangeName=0, const RooArgSet *condObs=0) const
Utility function for plotOn() that creates a projection of a function or p.d.f to be plotted on a RooPlot.

const RooAbsRealcreatePlotProjection (const RooArgSet &depVars, const RooArgSet &projVars, RooArgSet *&cloneSet) const
Utility function for plotOn() that creates a projection of a function or p.d.f to be plotted on a RooPlot.

virtual RooAbsRealcreateProfile (const RooArgSet &paramsOfInterest)
Create a RooProfileLL object that eliminates all nuisance parameters in the present function.

RooAbsRealcreateRunningIntegral (const RooArgSet &iset, const RooArgSet &nset=RooArgSet())
Calls createRunningIntegral(const RooArgSet&, const RooCmdArg&, const RooCmdArg&, const RooCmdArg&, const RooCmdArg&, const RooCmdArg&, const RooCmdArg&, const RooCmdArg&, const RooCmdArg&)

RooAbsRealcreateRunningIntegral (const RooArgSet &iset, 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())
Create an object that represents the running integral of the function over one or more observables listed in iset, i.e.

RooAbsRealcreateScanRI (const RooArgSet &iset, const RooArgSet &nset, Int_t numScanBins, Int_t intOrder)
Utility function for createRunningIntegral that construct an object implementing the numeric scanning technique for calculating the running integral.

virtual Double_t defaultErrorLevel () const

RooDerivativederivative (RooRealVar &obs, const RooArgSet &normSet, Int_t order, Double_t eps=0.001)
Return function representing first, second or third order derivative of this function.

RooDerivativederivative (RooRealVar &obs, Int_t order=1, Double_t eps=0.001)
Return function representing first, second or third order derivative of this function.

virtual void enableOffsetting (Bool_t)

RooDataHistfillDataHist (RooDataHist *hist, const RooArgSet *nset, Double_t scaleFactor, Bool_t correctForBinVolume=kFALSE, Bool_t showProgress=kFALSE) const
Fill a RooDataHist with values sampled from this function at the bin centers.

TH1fillHistogram (TH1 *hist, const RooArgList &plotVars, Double_t scaleFactor=1, const RooArgSet *projectedVars=0, Bool_t scaling=kTRUE, const RooArgSet *condObs=0, Bool_t setError=kTRUE) const
Fill the ROOT histogram 'hist' with values sampled from this function at the bin centers.

Double_t findRoot (RooRealVar &x, Double_t xmin, Double_t xmax, Double_t yval)
Return value of x (in range xmin,xmax) at which function equals yval.

Fix the interpretation of the coefficient of any RooAddPdf component in the expression tree headed by this object to the given set of observables.

virtual void fixAddCoefRange (const char *rangeName=0, Bool_t force=kTRUE)
Fix the interpretation of the coefficient of any RooAddPdf component in the expression tree headed by this object to the given set of observables.

virtual void forceNumInt (Bool_t flag=kTRUE)

RooFunctorfunctor (const RooArgList &obs, const RooArgList &pars=RooArgList(), const RooArgSet &nset=RooArgSet()) const
Return a RooFunctor object bound to this RooAbsReal with given definition of observables and parameters.

virtual Int_t getAnalyticalIntegral (RooArgSet &allVars, RooArgSet &analVars, const char *rangeName=0) const
Interface function getAnalyticalIntergral advertises the analytical integrals that are supported.

Bool_t getForceNumInt () const

RooNumIntConfiggetIntegratorConfig ()
Return the numeric integration configuration used for this object.

const RooNumIntConfiggetIntegratorConfig () const
Return the numeric integration configuration used for this object.

virtual Int_t getMaxVal (const RooArgSet &vars) const
Advertise capability to determine maximum value of function for given set of observables.

const char * getPlotLabel () const
Get the label associated with the variable.

Double_t getPropagatedError (const RooFitResult &fr, const RooArgSet &nset=RooArgSet()) const
Calculate error on self by linearly propagating errors on parameters using the covariance matrix from a fit result.

TString getTitle (Bool_t appendUnit=kFALSE) const
Return this variable's title string.

const Text_tgetUnit () const

Double_t getVal (const RooArgSet &normalisationSet) const
Like getVal(const RooArgSet*), but always requires an argument for normalisation.

Double_t getVal (const RooArgSet *normalisationSet=nullptr) const
Evaluate object.

virtual RooSpan< const doublegetValBatch (std::size_t, std::size_t, const RooArgSet *=nullptr)=delete

std::vector< doublegetValues (RooAbsData const &data, RooFit::BatchModeOption batchMode=RooFit::BatchModeOption::Cpu) const

RooMultiGenFunctioniGenFunction (const RooArgSet &observables, const RooArgSet &nset=RooArgSet())

RooGenFunctioniGenFunction (RooRealVar &x, const RooArgSet &nset=RooArgSet())

virtual Bool_t isIdentical (const RooAbsArg &other, Bool_t assumeSameType=kFALSE) const

virtual Bool_t isOffsetting () const

void logEvalError (const char *message, const char *serverValueString=0) const
Log evaluation error message.

virtual Double_t maxVal (Int_t code) const
Return maximum value for set of observables identified by code assigned in getMaxVal.

RooAbsMomentmean (RooRealVar &obs)

RooAbsMomentmean (RooRealVar &obs, const RooArgSet &nset)

virtual Int_t minTrialSamples (const RooArgSet &) const

RooAbsMomentmoment (RooRealVar &obs, const RooArgSet &normObs, Int_t order, Bool_t central, Bool_t takeRoot, Bool_t intNormObs)
Return function representing moment of p.d.f (normalized w.r.t given observables) of given order.

RooAbsMomentmoment (RooRealVar &obs, Int_t order, Bool_t central, Bool_t takeRoot)
Return function representing moment of function of given order.

virtual Double_t offset () const

RooAbsRealoperator= (const RooAbsReal &other)
Assign values, name and configs from another RooAbsReal.

virtual Bool_t operator== (const RooAbsArg &other) const
Equality operator when comparing to another RooAbsArg.

Bool_t operator== (Double_t value) const
Equality operator comparing to a Double_t.

virtual RooPlotplotSliceOn (RooPlot *frame, const RooArgSet &sliceSet, Option_t *drawOptions="L", Double_t scaleFactor=1.0, ScaleType stype=Relative, const RooAbsData *projData=0) const

virtual void preferredObservableScanOrder (const RooArgSet &obs, RooArgSet &orderedObs) const
Interface method for function objects to indicate their preferred order of observables for scanning their values into a (multi-dimensional) histogram or RooDataSet.

virtual Bool_t readFromStream (std::istream &is, Bool_t compact, Bool_t verbose=kFALSE)
Read object contents from stream (dummy for now)

void setCachedValue (double value, bool notifyClients=true) final
Overwrite the value stored in this object's cache.

virtual Bool_t setData (RooAbsData &, Bool_t=kTRUE)

void setIntegratorConfig ()
Remove the specialized numeric integration configuration associated with this object.

void setIntegratorConfig (const RooNumIntConfig &config)
Set the given integrator configuration as default numeric integration configuration for this object.

void setParameterizeIntegral (const RooArgSet &paramVars)

void setPlotLabel (const char *label)
Set the label associated with this variable.

void setUnit (const char *unit)

RooAbsMomentsigma (RooRealVar &obs)

RooAbsMomentsigma (RooRealVar &obs, const RooArgSet &nset)

RooNumIntConfigspecialIntegratorConfig () const
Returns the specialized integrator configuration for this RooAbsReal.

RooNumIntConfigspecialIntegratorConfig (Bool_t createOnTheFly)
Returns the specialized integrator configuration for this RooAbsReal.

virtual void writeToStream (std::ostream &os, Bool_t compact) const
Write object contents to stream (dummy for now)

Public Member Functions inherited from RooAbsArg
RooAbsArg ()
Default constructor.

RooAbsArg (const char *name, const char *title)
Create an object with the specified name and descriptive title.

RooAbsArg (const RooAbsArg &other, const char *name=0)
Copy constructor transfers all boolean and string properties of the original object.

virtual ~RooAbsArg ()
Destructor.

Take ownership of the contents of 'comps'.

Take ownership of the contents of 'comps'.

Take ownership of the contents of 'comps'.

template<typename... Args_t>
bool addOwnedComponents (std::unique_ptr< Args_t >... comps)

virtual void applyWeightSquared (bool flag)
Disables or enables the usage of squared weights.

void attachArgs (const RooAbsCollection &set)
Bind this node to objects in set.

void attachDataSet (const RooAbsData &set)
Replace server nodes with names matching the dataset variable names with those data set variables, making this PDF directly dependent on the dataset.

void attachDataStore (const RooAbsDataStore &set)
Replace server nodes with names matching the dataset variable names with those data set variables, making this PDF directly dependent on the dataset.

const std::set< std::string > & attributes () const

virtual TObjectClone (const char *newname=0) const
Make a clone of an object using the Streamer facility.

virtual RooAbsArgcloneTree (const char *newname=0) const
Clone tree expression of objects.

Int_t Compare (const TObject *other) const
Utility function used by TCollection::Sort to compare contained TObjects We implement comparison by name, resulting in alphabetical sorting by object name.

std::size_t dataToken () const
Returns the token for retrieving results in the BatchMode. For internal use only.

virtual Int_t defaultPrintContents (Option_t *opt) const
Define default contents to print.

Bool_t dependsOn (const RooAbsArg &server, const RooAbsArg *ignoreArg=0, Bool_t valueOnly=kFALSE) const
Test whether we depend on (ie, are served by) the specified object.

Bool_t dependsOn (const RooAbsCollection &serverList, const RooAbsArg *ignoreArg=0, Bool_t valueOnly=kFALSE) const
Test whether we depend on (ie, are served by) any object in the specified collection.

Bool_t dependsOnValue (const RooAbsArg &server, const RooAbsArg *ignoreArg=0) const
Check whether this object depends on values served from the object passed as server.

Bool_t dependsOnValue (const RooAbsCollection &serverList, const RooAbsArg *ignoreArg=0) const
Check whether this object depends on values from an element in the serverList.

virtual std::unique_ptr< RooArgSetfillNormSetForServer (RooArgSet const &normSet, RooAbsArg const &server) const
Fills a RooArgSet to be used as the normalization set for a server, given a normalization set for this RooAbsArg.

Bool_t getAttribute (const Text_t *name) const
Check if a named attribute is set. By default, all attributes are unset.

Return ancestors in cloning chain of this RooAbsArg.

RooArgSetgetComponents () const
Create a RooArgSet with all components (branch nodes) of the expression tree headed by this object.

bool getObservables (const RooAbsCollection *depList, RooArgSet &outputSet, bool valueOnly=true) const
Create a list of leaf nodes in the arg tree starting with ourself as top node that match any of the names the args in the supplied argset.

RooArgSetgetObservables (const RooAbsData &data) const
Return the observables of this pdf given the observables defined by data.

RooArgSetgetObservables (const RooAbsData *data) const
Create a list of leaf nodes in the arg tree starting with ourself as top node that match any of the names of the variable list of the supplied data set (the dependents).

RooArgSetgetObservables (const RooArgSet &set, Bool_t valueOnly=kTRUE) const
Given a set of possible observables, return the observables that this PDF depends on.

RooArgSetgetObservables (const RooArgSet *depList, bool valueOnly=true) const
Create a list of leaf nodes in the arg tree starting with ourself as top node that match any of the names the args in the supplied argset.

RooArgSetgetParameters (const RooAbsData &data, bool stripDisconnected=true) const
Return the parameters of this p.d.f when used in conjuction with dataset 'data'.

RooArgSetgetParameters (const RooAbsData *data, bool stripDisconnected=true) const
Create a list of leaf nodes in the arg tree starting with ourself as top node that don't match any of the names of the variable list of the supplied data set (the dependents).

RooArgSetgetParameters (const RooArgSet &observables, bool stripDisconnected=true) const
Return the parameters of the p.d.f given the provided set of observables.

RooArgSetgetParameters (const RooArgSet *observables, bool stripDisconnected=true) const
Create a list of leaf nodes in the arg tree starting with ourself as top node that don't match any of the names the args in the supplied argset.

virtual bool getParameters (const RooArgSet *observables, RooArgSet &outputSet, bool stripDisconnected=true) const
Fills a list with leaf nodes in the arg tree starting with ourself as top node that don't match any of the names the args in the supplied argset.

RooAbsProxygetProxy (Int_t index) const
Return the nth proxy from the proxy list.

const Text_tgetStringAttribute (const Text_t *key) const
Get string attribute mapped under key 'key'.

Bool_t getTransientAttribute (const Text_t *name) const
Check if a named attribute is set.

RooArgSetgetVariables (Bool_t stripDisconnected=kTRUE) const
Return RooArgSet with all variables (tree leaf nodes of expresssion tree)

void graphVizTree (const char *fileName, const char *delimiter="\n", bool useTitle=false, bool useLatex=false)
Create a GraphViz .dot file visualizing the expression tree headed by this RooAbsArg object.

void graphVizTree (std::ostream &os, const char *delimiter="\n", bool useTitle=false, bool useLatex=false)
Write the GraphViz representation of the expression tree headed by this RooAbsArg object to the given ostream.

Bool_t hasClients () const

virtual Bool_t hasRange (const char *) const

virtual Bool_t importWorkspaceHook (RooWorkspace &ws)

virtual Bool_t inRange (const char *) const

virtual bool isCategory () const

Bool_t isCloneOf (const RooAbsArg &other) const
Check if this object was created as a clone of 'other'.

Bool_t isConstant () const
Check if the "Constant" attribute is set.

virtual Bool_t isDerived () const
Does value or shape of this arg depend on any other arg?

virtual bool isReducerNode () const

virtual Bool_t IsSortable () const

Bool_t localNoDirtyInhibit () const

const TNamednamePtr () const
De-duplicated pointer to this object's name.

Int_t numProxies () const
Return the number of registered proxies.

Bool_t observableOverlaps (const RooAbsData *dset, const RooAbsArg &testArg) const
Test if any of the dependents of the arg tree (as determined by getObservables) overlaps with those of the testArg.

Bool_t observableOverlaps (const RooArgSet *depList, const RooAbsArg &testArg) const
Test if any of the dependents of the arg tree (as determined by getObservables) overlaps with those of the testArg.

RooAbsArgoperator= (const RooAbsArg &other)
Assign all boolean and string properties of the original object.

Bool_t overlaps (const RooAbsArg &testArg, Bool_t valueOnly=kFALSE) const
Test if any of the nodes of tree are shared with that of the given tree.

const RooArgSetownedComponents () const

virtual void Print (Option_t *options=0) const
Print the object to the defaultPrintStream().

virtual void printAddress (std::ostream &os) const
Print class name of object.

virtual void printArgs (std::ostream &os) const
Print object arguments, ie its proxies.

virtual void printClassName (std::ostream &os) const
Print object class name.

void printCompactTree (const char *indent="", const char *fileName=0, const char *namePat=0, RooAbsArg *client=0)
Print tree structure of expression tree on stdout, or to file if filename is specified.

void printCompactTree (std::ostream &os, const char *indent="", const char *namePat=0, RooAbsArg *client=0)
Print tree structure of expression tree on given ostream.

virtual void printCompactTreeHook (std::ostream &os, const char *ind="")
Hook function interface for object to insert additional information when printed in the context of a tree structure.

void printComponentTree (const char *indent="", const char *namePat=0, Int_t nLevel=999)
Print tree structure of expression tree on given ostream, only branch nodes are printed.

void printDirty (Bool_t depth=kTRUE) const
Print information about current value dirty state information.

virtual void printName (std::ostream &os) const
Print object name.

virtual void printTitle (std::ostream &os) const
Print object title.

virtual void printTree (std::ostream &os, TString indent="") const
Print object tree structure.

Bool_t recursiveCheckObservables (const RooArgSet *nset) const
Recursively call checkObservables on all nodes in the expression tree.

void setAttribute (const Text_t *name, Bool_t value=kTRUE)
Set (default) or clear a named boolean attribute of this object.

void setDataToken (std::size_t index)
Sets the token for retrieving results in the BatchMode. For internal use only.

void setLocalNoDirtyInhibit (Bool_t flag) const

void SetName (const char *name)
Set the name of the TNamed.

void SetNameTitle (const char *name, const char *title)
Set all the TNamed parameters (name and title).

void setProhibitServerRedirect (Bool_t flag)

void setStringAttribute (const Text_t *key, const Text_t *value)
Associate string 'value' to this object under key 'key'.

void setTransientAttribute (const Text_t *name, Bool_t value=kTRUE)
Set (default) or clear a named boolean attribute of this object.

void setWorkspace (RooWorkspace &ws)

const std::map< std::string, std::string > & stringAttributes () const

const std::set< std::string > & transientAttributes () const

TIteratorclientIterator () const
Retrieve a client iterator.

TIteratorvalueClientIterator () const

TIteratorshapeClientIterator () const

TIteratorserverIterator () const

RooFIter valueClientMIterator () const

RooFIter shapeClientMIterator () const

RooFIter serverMIterator () const

RooArgSetgetDependents (const RooArgSet &set) const

RooArgSetgetDependents (const RooAbsData *set) const

RooArgSetgetDependents (const RooArgSet *depList) const

Bool_t dependentOverlaps (const RooAbsData *dset, const RooAbsArg &testArg) const

Bool_t dependentOverlaps (const RooArgSet *depList, const RooAbsArg &testArg) const

Bool_t checkDependents (const RooArgSet *nset) const

Bool_t recursiveCheckDependents (const RooArgSet *nset) const

const RefCountList_tclients () const
List of all clients of this object.

const RefCountList_tvalueClients () const
List of all value clients of this object. Value clients receive value updates.

const RefCountList_tshapeClients () const
List of all shape clients of this object.

const RefCountList_tservers () const
List of all servers of this object.

RooAbsArgfindServer (const char *name) const
Return server of this with name name. Returns nullptr if not found.

RooAbsArgfindServer (const RooAbsArg &arg) const
Return server of this that has the same name as arg. Returns nullptr if not found.

RooAbsArgfindServer (Int_t index) const
Return i-th server from server list.

Bool_t isValueServer (const RooAbsArg &arg) const
Check if this is serving values to arg.

Bool_t isValueServer (const char *name) const
Check if this is serving values to an object with name name.

Bool_t isShapeServer (const RooAbsArg &arg) const
Check if this is serving shape to arg.

Bool_t isShapeServer (const char *name) const
Check if this is serving shape to an object with name name.

void leafNodeServerList (RooAbsCollection *list, const RooAbsArg *arg=0, Bool_t recurseNonDerived=kFALSE) const
Fill supplied list with all leaf nodes of the arg tree, starting with ourself as top node.

void branchNodeServerList (RooAbsCollection *list, const RooAbsArg *arg=0, Bool_t recurseNonDerived=kFALSE) const
Fill supplied list with all branch nodes of the arg tree starting with ourself as top node.

void treeNodeServerList (RooAbsCollection *list, const RooAbsArg *arg=0, Bool_t doBranch=kTRUE, Bool_t doLeaf=kTRUE, Bool_t valueOnly=kFALSE, Bool_t recurseNonDerived=kFALSE) const
Fill supplied list with nodes of the arg tree, following all server links, starting with ourself as top node.

virtual Bool_t isFundamental () const
Is this object a fundamental type that can be added to a dataset? Fundamental-type subclasses override this method to return kTRUE.

virtual Bool_t isLValue () const
Is this argument an l-value, i.e., can it appear on the left-hand side of an assignment expression? LValues are also special since they can potentially be analytically integrated and generated.

Bool_t redirectServers (const RooAbsCollection &newServerList, Bool_t mustReplaceAll=kFALSE, Bool_t nameChange=kFALSE, Bool_t isRecursionStep=kFALSE)
Replace all direct servers of this object with the new servers in newServerList.

Bool_t recursiveRedirectServers (const RooAbsCollection &newServerList, Bool_t mustReplaceAll=kFALSE, Bool_t nameChange=kFALSE, Bool_t recurseInNewSet=kTRUE)
Recursively replace all servers with the new servers in newSet.

virtual void serverNameChangeHook (const RooAbsArg *, const RooAbsArg *)

void addServer (RooAbsArg &server, Bool_t valueProp=kTRUE, Bool_t shapeProp=kFALSE, std::size_t refCount=1)
Register another RooAbsArg as a server to us, ie, declare that we depend on it.

void addServerList (RooAbsCollection &serverList, Bool_t valueProp=kTRUE, Bool_t shapeProp=kFALSE)
Register a list of RooAbsArg as servers to us by calling addServer() for each arg in the list.

void replaceServer (RooAbsArg &oldServer, RooAbsArg &newServer, Bool_t valueProp, Bool_t shapeProp)
Replace 'oldServer' with 'newServer'.

void changeServer (RooAbsArg &server, Bool_t valueProp, Bool_t shapeProp)
Change dirty flag propagation mask for specified server.

void removeServer (RooAbsArg &server, Bool_t force=kFALSE)
Unregister another RooAbsArg as a server to us, ie, declare that we no longer depend on its value and shape.

RooAbsArgfindNewServer (const RooAbsCollection &newSet, Bool_t nameChange) const
Find the new server in the specified set that matches the old server.

virtual void optimizeCacheMode (const RooArgSet &observables)
Activate cache mode optimization with given definition of observables.

virtual void optimizeCacheMode (const RooArgSet &observables, RooArgSet &optNodes, RooLinkedList &processedNodes)
Activate cache mode optimization with given definition of observables.

Bool_t findConstantNodes (const RooArgSet &observables, RooArgSet &cacheList)
Find branch nodes with all-constant parameters, and add them to the list of nodes that can be cached with a dataset in a test statistic calculation.

Bool_t findConstantNodes (const RooArgSet &observables, RooArgSet &cacheList, RooLinkedList &processedNodes)
Find branch nodes with all-constant parameters, and add them to the list of nodes that can be cached with a dataset in a test statistic calculation.

virtual void constOptimizeTestStatistic (ConstOpCode opcode, Bool_t doAlsoTrackingOpt=kTRUE)
Interface function signaling a request to perform constant term optimization.

Bool_t isShapeDirty () const

Bool_t isValueDirty () const

Bool_t isValueDirtyAndClear () const

Bool_t isValueOrShapeDirtyAndClear () const

void registerCache (RooAbsCache &cache)
Register RooAbsCache with this object.

void unRegisterCache (RooAbsCache &cache)
Unregister a RooAbsCache. Called from the RooAbsCache destructor.

Int_t numCaches () const
Return number of registered caches.

RooAbsCachegetCache (Int_t index) const
Return registered cache object by index.

OperMode operMode () const
Query the operation mode of this node.

void setOperMode (OperMode mode, Bool_t recurseADirty=kTRUE)
Set the operation mode of this node.

void setValueDirty ()
Mark the element dirty. This forces a re-evaluation when a value is requested.

void setShapeDirty ()
Notify that a shape-like property (e.g. binning) has changed.

const char * aggregateCacheUniqueSuffix () const

virtual const char * cacheUniqueSuffix () const

void wireAllCaches ()

RooExpensiveObjectCacheexpensiveObjectCache () const

virtual void setExpensiveObjectCache (RooExpensiveObjectCache &cache)

Public Member Functions inherited from TNamed
TNamed ()

TNamed (const char *name, const char *title)

TNamed (const TNamed &named)
TNamed copy ctor.

TNamed (const TString &name, const TString &title)

virtual ~TNamed ()
TNamed destructor.

virtual void Clear (Option_t *option="")
Set name and title to empty strings ("").

virtual void Copy (TObject &named) const
Copy this to obj.

virtual void FillBuffer (char *&buffer)
Encode TNamed into output buffer.

virtual const char * GetName () const
Returns name of object.

virtual const char * GetTitle () const
Returns title of object.

virtual ULong_t Hash () const
Return hash value for this object.

virtual void ls (Option_t *option="") const
List TNamed name and title.

TNamedoperator= (const TNamed &rhs)
TNamed assignment operator.

virtual void SetTitle (const char *title="")
Set the title of the TNamed.

virtual Int_t Sizeof () const
Return size of the TNamed part of the TObject.

Public Member Functions inherited from TObject
TObject ()
TObject constructor.

TObject (const TObject &object)
TObject copy ctor.

virtual ~TObject ()
TObject destructor.

void AbstractMethod (const char *method) const
Use this method to implement an "abstract" method that you don't want to leave purely abstract.

Append graphics object to current pad.

virtual void Browse (TBrowser *b)
Browse object. May be overridden for another default action.

ULong_t CheckedHash ()
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char * ClassName () const
Returns name of class to which the object belongs.

virtual void Delete (Option_t *option="")
Delete this object.

virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
Computes distance from point (px,py) to the object.

virtual void Draw (Option_t *option="")
Default Draw method for all objects.

virtual void DrawClass () const
Draw class inheritance tree of the class to which this object belongs.

virtual TObjectDrawClone (Option_t *option="") const
Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad).

virtual void Dump () const
Dump contents of object on stdout.

virtual void Error (const char *method, const char *msgfmt,...) const
Issue error message.

virtual void Execute (const char *method, const char *params, Int_t *error=0)
Execute method on this object with the given parameter string, e.g.

virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
Execute method on this object with parameters stored in the TObjArray.

virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
Execute action corresponding to an event at (px,py).

virtual void Fatal (const char *method, const char *msgfmt,...) const
Issue fatal error message.

virtual TObjectFindObject (const char *name) const
Must be redefined in derived classes.

virtual TObjectFindObject (const TObject *obj) const
Must be redefined in derived classes.

virtual Option_tGetDrawOption () const
Get option used by the graphics system to draw this object.

virtual const char * GetIconName () const
Returns mime type name of object.

virtual char * GetObjectInfo (Int_t px, Int_t py) const
Returns string containing info about the object at position (px,py).

virtual Option_tGetOption () const

virtual UInt_t GetUniqueID () const
Return the unique object id.

virtual Bool_t HandleTimer (TTimer *timer)
Execute action in response of a timer timing out.

Bool_t HasInconsistentHash () const
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void Info (const char *method, const char *msgfmt,...) const
Issue info message.

virtual Bool_t InheritsFrom (const char *classname) const
Returns kTRUE if object inherits from class "classname".

virtual Bool_t InheritsFrom (const TClass *cl) const
Returns kTRUE if object inherits from TClass cl.

virtual void Inspect () const
Dump contents of this object in a graphics canvas.

void InvertBit (UInt_t f)

Bool_t IsDestructed () const
IsDestructed.

virtual Bool_t IsEqual (const TObject *obj) const
Default equal comparison (objects are equal if they have the same address in memory).

virtual Bool_t IsFolder () const
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t IsOnHeap () const

R__ALWAYS_INLINE Bool_t IsZombie () const

void MayNotUse (const char *method) const
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t Notify ()
This method must be overridden to handle object notification.

void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
Use this method to declare a method obsolete.

void operator delete (void *ptr)
Operator delete.

void operator delete[] (void *ptr)
Operator delete [].

voidoperator new (size_t sz)

voidoperator new (size_t sz, void *vp)

voidoperator new[] (size_t sz)

voidoperator new[] (size_t sz, void *vp)

TObjectoperator= (const TObject &rhs)
TObject assignment operator.

virtual void Paint (Option_t *option="")
This method must be overridden if a class wants to paint itself.

virtual void Pop ()
Pop on object drawn in a pad to the top of the display list.

virtual Int_t Read (const char *name)
Read contents of object with specified name from the current directory.

virtual void RecursiveRemove (TObject *obj)
Recursively remove this object from a list.

void ResetBit (UInt_t f)

virtual void SaveAs (const char *filename="", Option_t *option="") const
Save this object in the file specified by filename.

virtual void SavePrimitive (std::ostream &out, Option_t *option="")
Save a primitive as a C++ statement(s) on output stream "out".

void SetBit (UInt_t f)

void SetBit (UInt_t f, Bool_t set)
Set or unset the user status bits as specified in f.

virtual void SetDrawOption (Option_t *option="")
Set drawing option for object.

virtual void SetUniqueID (UInt_t uid)
Set the unique object id.

virtual void SysError (const char *method, const char *msgfmt,...) const
Issue system error message.

R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const

Int_t TestBits (UInt_t f) const

virtual void UseCurrentStyle ()
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void Warning (const char *method, const char *msgfmt,...) const
Issue warning message.

virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
Write this object to the current directory.

virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
Write this object to the current directory.

Public Member Functions inherited from RooPrintable
RooPrintable ()

virtual ~RooPrintable ()

virtual StyleOption defaultPrintStyle (Option_t *opt) const

virtual void printExtras (std::ostream &os) const
Interface to print extras of object.

virtual void printStream (std::ostream &os, Int_t contents, StyleOption style, TString indent="") const
Print description of object on ostream, printing contents set by contents integer, which is interpreted as an OR of 'enum ContentsOptions' values and in the style given by 'enum StyleOption'.

Protected Member Functions

bool canComputeBatchWithCuda () const override

void computeBatch (cudaStream_t *, double *output, size_t nEvents, RooFit::Detail::DataMap const &) const override
Compute addition of PDFs in batches.

Double_t evaluate () const override
Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.

RooAbsGenContextgenContext (const RooArgSet &vars, const RooDataSet *prototype=0, const RooArgSet *auxProto=0, bool verbose=false) const override
Return specialized context to efficiently generate toy events from RooAddPdfs return RooAbsPdf::genContext(vars,prototype,auxProto,verbose) ; // WVE DEBUG.

CacheElemgetProjCache (const RooArgSet *nset, const RooArgSet *iset=0, const char *rangeName=0) const
Manager of cache with coefficient projections and transformations.

double getValV (const RooArgSet *set=nullptr) const override
Calculate and return the current value.

bool redirectServersHook (const RooAbsCollection &, bool, bool, bool) override
Coefficient error counter.

void selectNormalization (const RooArgSet *depSet=0, bool force=false) override
Interface function used by test statistics to freeze choice of observables for interpretation of fraction coefficients.

void selectNormalizationRange (const char *rangeName=0, bool force=false) override
Interface function used by test statistics to freeze choice of range for interpretation of fraction coefficients.

void updateCoefficients (CacheElem &cache, const RooArgSet *nset) const
Update the coefficient values in the given cache element: calculate new remainder fraction, normalize fractions obtained from extended ML terms to unity, and multiply the various range and dimensional corrections needed in the current use context.

Protected Member Functions inherited from RooAbsPdf
RooAbsPdf (const RooAbsPdf &other, const char *name=0)
Copy constructor.

double normalizeWithNaNPacking (double rawVal, double normVal) const

virtual RooPlotplotOn (RooPlot *frame, PlotOpt o) const
Plot oneself on 'frame'.

Int_trandomizeProtoOrder (Int_t nProto, Int_t nGen, Bool_t resample=kFALSE) const
Return lookup table with randomized order for nProto prototype events.

virtual Bool_t syncNormalization (const RooArgSet *dset, Bool_t adjustProxies=kTRUE) const
Verify that the normalization integral cached with this PDF is valid for given set of normalization observables.

Protected Member Functions inherited from RooAbsReal
virtual void attachToTree (TTree &t, Int_t bufSize=32000)
Attach object to a branch of given TTree.

virtual void attachToVStore (RooVectorDataStore &vstore)

Internal driver function for chi2 fits.

virtual void copyCache (const RooAbsArg *source, Bool_t valueOnly=kFALSE, Bool_t setValDirty=kTRUE)
Copy the cached value of another RooAbsArg to our cache.

RooAbsRealcreateIntObj (const RooArgSet &iset, const RooArgSet *nset, const RooNumIntConfig *cfg, const char *rangeName) const
Internal utility function for createIntegral() that creates the actual integral object.

virtual RooSpan< doubleevaluateBatch (std::size_t, std::size_t)=delete

virtual RooSpan< doubleevaluateSpan (RooBatchCompute::RunContext &evalData, const RooArgSet *normSet) const
Evaluate this object for a batch/span of data points.

virtual void fillTreeBranch (TTree &t)
Fill the tree branch that associated with this object with its current value.

void findInnerMostIntegration (const RooArgSet &allObs, RooArgSet &innerObs, const char *rangeName) const
Utility function for createIntObj() that aids in the construct of recursive integrals over functions with multiple observables with parameterized ranges.

TString integralNameSuffix (const RooArgSet &iset, const RooArgSet *nset=0, const char *rangeName=0, Bool_t omitEmpty=kFALSE) const
Construct string with unique suffix name to give to integral object that encodes integrated observables, normalization observables and the integration range name.

Bool_t isSelectedComp () const
If true, the current pdf is a selected component (for use in plotting)

virtual bool isValid () const
Check if current value is valid.

virtual bool isValidReal (double, bool printError=false) const
Interface function to check if given value is a valid value for this object. Returns true unless overridden.

void makeProjectionSet (const RooAbsArg *plotVar, const RooArgSet *allVars, RooArgSet &projectedVars, Bool_t silent) const
Utility function for plotOn() that constructs the set of observables to project when plotting ourselves as function of 'plotVar'.

Bool_t matchArgs (const RooArgSet &allDeps, RooArgSet &numDeps, const RooArgProxy &a) const
Utility function for use in getAnalyticalIntegral().

Bool_t matchArgs (const RooArgSet &allDeps, RooArgSet &numDeps, const RooArgProxy &a, const RooArgProxy &b) const
Utility function for use in getAnalyticalIntegral().

Bool_t matchArgs (const RooArgSet &allDeps, RooArgSet &numDeps, const RooArgProxy &a, const RooArgProxy &b, const RooArgProxy &c) const
Utility function for use in getAnalyticalIntegral().

Bool_t matchArgs (const RooArgSet &allDeps, RooArgSet &numDeps, const RooArgProxy &a, const RooArgProxy &b, const RooArgProxy &c, const RooArgProxy &d) const
Utility function for use in getAnalyticalIntegral().

Bool_t matchArgs (const RooArgSet &allDeps, RooArgSet &numDeps, const RooArgSet &set) const
Utility function for use in getAnalyticalIntegral().

virtual RooPlotplotAsymOn (RooPlot *frame, const RooAbsCategoryLValue &asymCat, PlotOpt o) const

void plotOnCompSelect (RooArgSet *selNodes) const
Helper function for plotting of composite p.d.fs.

RooPlotplotOnWithErrorBand (RooPlot *frame, const RooFitResult &fr, Double_t Z, const RooArgSet *params, const RooLinkedList &argList, Bool_t method1) const
Plot function or PDF on frame with support for visualization of the uncertainty encoded in the given fit result fr.

Bool_t plotSanityChecks (RooPlot *frame) const
Utility function for plotOn(), perform general sanity check on frame to ensure safe plotting operations.

void selectComp (Bool_t flag)

virtual void setTreeBranchStatus (TTree &t, Bool_t active)
(De)Activate associated tree branch

virtual void syncCache (const RooArgSet *set=0)

Double_t traceEval (const RooArgSet *set) const
Calculate current value of object, with error tracing wrapper.

Protected Member Functions inherited from RooAbsArg
void attachToStore (RooAbsDataStore &store)
Attach this argument to the data store such that it reads data from there.

TString cleanBranchName () const
Construct a mangled name from the actual name that is free of any math symbols that might be interpreted by TTree.

void clearShapeDirty () const

void clearValueAndShapeDirty () const

void clearValueDirty () const

virtual void getObservablesHook (const RooArgSet *, RooArgSet *) const

virtual void getParametersHook (const RooArgSet *, RooArgSet *, Bool_t) const

void graphVizAddConnections (std::set< std::pair< RooAbsArg *, RooAbsArg * > > &)
Utility function that inserts all point-to-point client-server connections between any two RooAbsArgs in the expression tree headed by this object in the linkSet argument.

Bool_t inhibitDirty () const
Delete watch flag.

virtual void ioStreamerPass2 ()
Method called by workspace container to finalize schema evolution issues that cannot be handled in a single ioStreamer pass.

virtual void operModeHook ()

virtual void optimizeDirtyHook (const RooArgSet *)

void printAttribList (std::ostream &os) const
Transient boolean attributes (not copied in ctor)

void registerProxy (RooArgProxy &proxy)
Register an RooArgProxy in the proxy list.

void registerProxy (RooListProxy &proxy)
Register an RooListProxy in the proxy list.

void registerProxy (RooSetProxy &proxy)
Register an RooSetProxy in the proxy list.

void setProxyNormSet (const RooArgSet *nset)
Forward a change in the cached normalization argset to all the registered proxies.

void setShapeDirty (const RooAbsArg *source)
Notify that a shape-like property (e.g. binning) has changed.

void setValueDirty (const RooAbsArg *source)
Force element to re-evaluate itself when a value is requested.

void unRegisterProxy (RooArgProxy &proxy)
Remove proxy from proxy list.

void unRegisterProxy (RooListProxy &proxy)
Remove proxy from proxy list.

void unRegisterProxy (RooSetProxy &proxy)
Remove proxy from proxy list.

Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
Interface to ErrorHandler (protected).

void MakeZombie ()

Protected Attributes

bool _allExtendable = false

RooAICRegistry _codeReg

std::vector< double_coefCache

Int_t _coefErrCount

RooListProxy _coefList

bool _haveLastCoef = false
List of supplemental normalization factors.

RooListProxy _pdfList
Registry of component analytical integration codes.

RooObjCacheManager _projCacheMgr

bool _projectCoefs = false

bool _recursive = false

RooSetProxy _refCoefNorm

TNamed_refCoefRangeName = nullptr

RooArgList_snormList {nullptr}

Protected Attributes inherited from RooAbsPdf
Int_t _errorCount

Int_t _negCount

RooAbsReal_norm = nullptr

RooObjCacheManager _normMgr

TString _normRange
MC generator configuration specific for this object.

RooArgSet const * _normSet = nullptr
Normalization integral (owned by _normMgr)

Double_t _rawValue

Bool_t _selectComp

RooNumGenConfig_specGeneratorConfig

Int_t _traceCount

Protected Attributes inherited from RooAbsReal
Bool_t _forceNumInt

TString _label

RooArgSet_lastNSet

Int_t _plotBins

Double_t _plotMax

Double_t _plotMin

Bool_t _selectComp

RooNumIntConfig_specIntegratorConfig

TString _unit

Double_t _value

Protected Attributes inherited from RooAbsArg
std::set< std::string > _boolAttrib

std::set< std::string > _boolAttribTransient

std::vector< RooAbsCache * > _cacheList

RefCountList_t _clientList

RefCountList_t _clientListShape

RefCountList_t _clientListValue

std::size_t _dataToken = 0
In which workspace do I live, if any.

Bool_t _deleteWatch

RooExpensiveObjectCache_eocache {nullptr}
Prohibit server redirects – Debugging tool.

Bool_t _fast = false

Bool_t _isConstant
De-duplicated name pointer. This will be equal for all objects with the same name.

Bool_t _localNoInhibitDirty
Cached isConstant status.

RooWorkspace_myws
Prevent 'AlwaysDirty' mode for this node.

const TNamed_namePtr

OperMode _operMode

RooArgSet_ownedComponents

Bool_t _prohibitServerRedirect
Set of owned component.

RooRefArray _proxyList

ProxyListCache _proxyListCache

RefCountList_t _serverList

Bool_t _shapeDirty

std::map< std::string, std::string > _stringAttrib

Bool_t _valueDirty

Protected Attributes inherited from TNamed
TString fName

TString fTitle

Private Member Functions

void finalizeConstruction ()

std::pair< const RooArgSet *, CacheElem * > getNormAndCache (const RooArgSet *nset) const
Look up projection cache and per-PDF norm sets.

Private Attributes

std::unique_ptr< const RooArgSet_copyOfLastNormSet = nullptr
!

RooFit::UniqueId< RooArgSet >::Value_t _idOfLastUsedNormSet = RooFit::UniqueId<RooArgSet>::nullval
!

Friends

Public Types inherited from RooAbsPdf
enum  ExtendMode { CanNotBeExtended , CanBeExtended , MustBeExtended }

Public Types inherited from RooAbsReal
enum  ErrorLoggingMode { PrintErrors , CollectErrors , CountErrors , Ignore }

typedef std::map< constRooAbsArg *, std::pair< std::string, std::list< EvalError > > >::const_iterator EvalErrorIter

enum  ScaleType { Raw , Relative , NumEvent , RelativeExpected }

using value_type = double

Public Types inherited from RooAbsArg
enum  CacheMode { Always =0 , NotAdvised =1 , Never =2 }

enum  ConstOpCode { Activate =0 , DeActivate =1 , ConfigChange =2 , ValueChange =3 }

enum  OperMode { Auto =0 , AClean =1 , ADirty =2 }

using RefCountList_t = RooSTLRefCountList< RooAbsArg >

using RefCountListLegacyIterator_t = TIteratorToSTLInterface< RefCountList_t::Container_t >

Public Types inherited from TObject
enum  {
kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,
}

enum  { kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }

enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

enum  EStatusBits {
kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,
kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13)
}

Public Types inherited from RooPrintable
enum  ContentsOption {
kName =1 , kClassName =2 , kValue =4 , kArgs =8 ,
}

enum  StyleOption {
kInline =1 , kSingleLine =2 , kStandard =3 , kVerbose =4 ,
kTreeStructure =5
}

Static Public Member Functions inherited from RooAbsPdf
static RooNumGenConfigdefaultGeneratorConfig ()
Returns the default numeric MC generator configuration for all RooAbsReals.

static int verboseEval ()
Return global level of verbosity for p.d.f. evaluations.

static void verboseEval (Int_t stat)
Change global level of verbosity for p.d.f. evaluations.

Static Public Member Functions inherited from RooAbsReal
static void clearEvalErrorLog ()
Clear the stack of evaluation error messages.

static RooNumIntConfigdefaultIntegratorConfig ()
Returns the default numeric integration configuration for all RooAbsReals.

static EvalErrorIter evalErrorIter ()

static ErrorLoggingMode evalErrorLoggingMode ()
Return current evaluation error logging mode.

static Bool_t hideOffset ()

static void logEvalError (const RooAbsReal *originator, const char *origName, const char *message, const char *serverValueString=0)
Interface to insert remote error logging messages received by RooRealMPFE into current error loggin stream.

static Int_t numEvalErrorItems ()

static Int_t numEvalErrors ()
Return the number of logged evaluation errors since the last clearing.

static void printEvalErrors (std::ostream &os=std::cout, Int_t maxPerNode=10000000)
Print all outstanding logged evaluation error on the given ostream.

static void setEvalErrorLoggingMode (ErrorLoggingMode m)
Set evaluation error logging mode.

static void setHideOffset (Bool_t flag)

Static Public Member Functions inherited from RooAbsArg
static void setDirtyInhibit (Bool_t flag)
Control global dirty inhibit mode.

static void verboseDirty (Bool_t flag)
Activate verbose messaging related to dirty flag propagation.

Static Public Member Functions inherited from TObject
static Longptr_t GetDtorOnly ()
Return destructor only flag.

static Bool_t GetObjectStat ()
Get status of object stat flag.

static void SetDtorOnly (void *obj)
Set destructor only flag.

static void SetObjectStat (Bool_t stat)
Turn on/off tracking of objects in the TObjectTable.

Static Public Member Functions inherited from RooPrintable
static std::ostream & defaultPrintStream (std::ostream *os=0)
Return a reference to the current default stream to use in Print().

static void nameFieldLength (Int_t newLen)
Set length of field reserved from printing name of RooAbsArgs in multi-line collection printing to given amount.

Protected Types inherited from TObject
enum  { kOnlyPrepStep = BIT(3) }

Static Protected Member Functions inherited from RooAbsReal
static void globalSelectComp (Bool_t flag)
Global switch controlling the activation of the selectComp() functionality.

Static Protected Member Functions inherited from RooAbsArg
static void ioStreamerPass2Finalize ()
Method called by workspace container to finalize schema evolution issues that cannot be handled in a single ioStreamer pass.

Static Protected Attributes inherited from RooAbsPdf
static TString _normRangeOverride

static Int_t _verboseEval = 0

Static Protected Attributes inherited from RooAbsReal
static Bool_t _globalSelectComp = false
Component selection flag for RooAbsPdf::plotCompOn.

static Bool_t _hideOffset = kTRUE

Static Protected Attributes inherited from RooAbsArg
static Bool_t _inhibitDirty

static Bool_t _verboseDirty
cache of the list of proxies. Avoids type casting.

Static Protected Attributes inherited from RooPrintable
static Int_t _nameLength

#include <RooAddPdf.h>

[legend]

Constructor & Destructor Documentation

inline

Definition at line 35 of file RooAddPdf.h.

 RooAddPdf::RooAddPdf ( const char * name, const char * title = 0 )

Dummy constructor.

Definition at line 92 of file RooAddPdf.cxx.

 RooAddPdf::RooAddPdf ( const char * name, const char * title, RooAbsPdf & pdf1, RooAbsPdf & pdf2, RooAbsReal & coef1 )

Constructor with two PDFs and one coefficient.

Definition at line 132 of file RooAddPdf.cxx.

 RooAddPdf::RooAddPdf ( const char * name, const char * title, const RooArgList & inPdfList )

Generic constructor from list of extended PDFs.

There are no coefficients as the expected number of events from each components determine the relative weight of the PDFs.

All PDFs must inherit from RooAbsPdf.

Definition at line 264 of file RooAddPdf.cxx.

 RooAddPdf::RooAddPdf ( const char * name, const char * title, const RooArgList & inPdfList, const RooArgList & inCoefList, bool recursiveFractions = false )

Generic constructor from list of PDFs and list of coefficients.

Each pdf list element (i) is paired with coefficient list element (i). The number of coefficients must be either equal to the number of PDFs, in which case extended MLL fitting is enabled, or be one less.

All PDFs must inherit from RooAbsPdf. All coefficients must inherit from RooAbsReal

If the recursiveFraction flag is true, the coefficients are interpreted as recursive coefficients as explained in the class description.

Definition at line 155 of file RooAddPdf.cxx.

 RooAddPdf::RooAddPdf ( const RooAddPdf & other, const char * name = 0 )

Copy constructor.

Definition at line 291 of file RooAddPdf.cxx.

inlineoverride

Definition at line 44 of file RooAddPdf.h.

◆ analyticalIntegralWN()

 Double_t RooAddPdf::analyticalIntegralWN ( Int_t code, const RooArgSet * normSet, const char * rangeName = 0 ) const
overridevirtual

Return analytical integral defined by given scenario code.

Reimplemented from RooAbsPdf.

Definition at line 928 of file RooAddPdf.cxx.

◆ binBoundaries()

 std::list< Double_t > * RooAddPdf::binBoundaries ( RooAbsRealLValue & obs, Double_t xlo, Double_t xhi ) const
overridevirtual

Loop over components for plot sampling hints and merge them if there are multiple.

Reimplemented from RooAbsReal.

Definition at line 1132 of file RooAddPdf.cxx.

◆ canComputeBatchWithCuda()

inlineoverrideprotectedvirtual

Reimplemented from RooAbsArg.

Definition at line 135 of file RooAddPdf.h.

◆ canNodeBeCached()

inlineoverridevirtual

Reimplemented from RooAbsArg.

Definition at line 90 of file RooAddPdf.h.

◆ checkObservables()

 bool RooAddPdf::checkObservables ( const RooArgSet * nset ) const
overridevirtual

Check if PDF is valid for given normalization set.

Coeffient and PDF must be non-overlapping, but pdf-coefficient pairs may overlap each other

Reimplemented from RooAbsArg.

Definition at line 833 of file RooAddPdf.cxx.

◆ clone()

 TObject * RooAddPdf::clone ( const char * newname ) const
inlineoverridevirtual

Implements RooAbsArg.

Definition at line 43 of file RooAddPdf.h.

◆ coefList()

 const RooArgList & RooAddPdf::coefList ( ) const
inline

Definition at line 71 of file RooAddPdf.h.

◆ computeBatch()

 void RooAddPdf::computeBatch ( cudaStream_t * stream, double * output, size_t nEvents, RooFit::Detail::DataMap const & dataMap ) const
overrideprotectedvirtual

Compute addition of PDFs in batches.

Reimplemented from RooAbsReal.

Definition at line 796 of file RooAddPdf.cxx.

◆ evaluate()

inlineoverrideprotectedvirtual

Evaluate this PDF / function / constant. Needs to be overridden by all derived classes.

Implements RooAbsReal.

Definition at line 130 of file RooAddPdf.h.

◆ expectedEvents()

 Double_t RooAddPdf::expectedEvents ( const RooArgSet * nset ) const
overridevirtual

Return expected number of events for extended likelihood calculation, which is the sum of all coefficients.

Return the number of expected events, which is either the sum of all coefficients or the sum of the components extended terms, multiplied with the fraction that is in the current range w.r.t the reference range.

Reimplemented from RooAbsPdf.

Definition at line 985 of file RooAddPdf.cxx.

◆ extendMode()

inlineoverridevirtual

Returns ability of PDF to provide extended likelihood terms.

Possible answers are in the enumerator RooAbsPdf::ExtendMode. This default implementation always returns CanNotBeExtended.

Reimplemented from RooAbsPdf.

Definition at line 59 of file RooAddPdf.h.

◆ finalizeConstruction()

private

Definition at line 104 of file RooAddPdf.cxx.

◆ fixCoefNormalization()

 void RooAddPdf::fixCoefNormalization ( const RooArgSet & refCoefNorm )

By default the interpretation of the fraction coefficients is performed in the contextual choice of observables.

This makes the shape of the p.d.f explicitly dependent on the choice of observables. This method instructs RooAddPdf to freeze the interpretation of the coefficients to be done in the given set of observables. If frozen, fractions are automatically transformed from the reference normalization set to the contextual normalization set by ratios of integrals.

Definition at line 320 of file RooAddPdf.cxx.

◆ fixCoefRange()

 void RooAddPdf::fixCoefRange ( const char * rangeName )

By default, fraction coefficients are assumed to refer to the default fit range.

This makes the shape of a RooAddPdf explicitly dependent on the range of the observables. Calling this function allows for a range-independent definition of the fractions, because it ties all coefficients to the given named range. If the normalisation range is different from this reference range, the appropriate fraction coefficients are automatically calculated from the reference fractions by integrating over the ranges, and comparing these integrals.

Definition at line 347 of file RooAddPdf.cxx.

◆ forceAnalyticalInt()

 bool RooAddPdf::forceAnalyticalInt ( const RooAbsArg & ) const
inlineoverridevirtual

Force RooRealIntegral to offer all observables for internal integration.

Reimplemented from RooAbsReal.

Definition at line 49 of file RooAddPdf.h.

◆ genContext()

 RooAbsGenContext * RooAddPdf::genContext ( const RooArgSet & vars, const RooDataSet * prototype = 0, const RooArgSet * auxProto = 0, bool verbose = false ) const
overrideprotectedvirtual

Return specialized context to efficiently generate toy events from RooAddPdfs return RooAbsPdf::genContext(vars,prototype,auxProto,verbose) ; // WVE DEBUG.

Reimplemented from RooAbsPdf.

Definition at line 1062 of file RooAddPdf.cxx.

◆ getAnalyticalIntegralWN()

 Int_t RooAddPdf::getAnalyticalIntegralWN ( RooArgSet & allVars, RooArgSet & analVars, const RooArgSet * normSet, const char * rangeName = 0 ) const
overridevirtual

Determine which part (if any) of given integral can be performed analytically.

If any analytical integration is possible, return integration scenario code

RooAddPdf queries each component PDF for its analytical integration capability of the requested set ('allVars'). It finds the largest common set of variables that can be integrated by all components. If such a set exists, it reconfirms that each component is capable of analytically integrating the common set, and combines the components individual integration codes into a single integration code valid for RooAddPdf.

Reimplemented from RooAbsReal.

Definition at line 863 of file RooAddPdf.cxx.

◆ getCoefNormalization()

 const RooArgSet & RooAddPdf::getCoefNormalization ( ) const
inline

Definition at line 79 of file RooAddPdf.h.

◆ getCoefRange()

 const char * RooAddPdf::getCoefRange ( ) const
inline

Definition at line 80 of file RooAddPdf.h.

◆ getNormAndCache()

 std::pair< const RooArgSet *, RooAddPdf::CacheElem * > RooAddPdf::getNormAndCache ( const RooArgSet * nset ) const
private

Look up projection cache and per-PDF norm sets.

If a PDF doesn't have a special norm set, use the defaultNorm. If defaultNorm == nullptr, use the member _normSet.

Definition at line 704 of file RooAddPdf.cxx.

◆ getProjCache()

 RooAddPdf::CacheElem * RooAddPdf::getProjCache ( const RooArgSet * nset, const RooArgSet * iset = 0, const char * rangeName = 0 ) const
protected

Manager of cache with coefficient projections and transformations.

Retrieve cache element for the computation of the PDF normalisation.

Parameters
 [in] nset Current normalisation set (integration over these variables yields 1). [in] iset Integration set. Variables to be integrated over (if integrations are performed). [in] rangeName Reference range for the integrals.

If a cache element does not exist, create and fill it on the fly. The cache also contains

• Supplemental normalization terms (in case not all added p.d.f.s have the same observables)
• Projection integrals to calculate transformed fraction coefficients when a frozen reference frame is provided
• Projection integrals for similar transformations when a frozen reference range is provided.

Definition at line 366 of file RooAddPdf.cxx.

◆ getValV()

 double RooAddPdf::getValV ( const RooArgSet * set = nullptr ) const
overrideprotectedvirtual

Calculate and return the current value.

Reimplemented from RooAbsPdf.

Definition at line 759 of file RooAddPdf.cxx.

◆ isBinnedDistribution()

 bool RooAddPdf::isBinnedDistribution ( const RooArgSet & obs ) const
overridevirtual

If all components that depend on obs are binned, so is their sum.

Reimplemented from RooAbsReal.

Definition at line 1174 of file RooAddPdf.cxx.

◆ pdfList()

 const RooArgList & RooAddPdf::pdfList ( ) const
inline

Definition at line 67 of file RooAddPdf.h.

◆ plotSamplingHint()

 std::list< Double_t > * RooAddPdf::plotSamplingHint ( RooAbsRealLValue & obs, Double_t xlo, Double_t xhi ) const
overridevirtual

Loop over components for plot sampling hints and merge them if there are multiple.

Reimplemented from RooAbsReal.

Definition at line 1089 of file RooAddPdf.cxx.

◆ printMetaArgs()

 void RooAddPdf::printMetaArgs ( std::ostream & os ) const
overridevirtual

Customized printing of arguments of a RooAddPdf to more intuitively reflect the contents of the product operator construction.

Reimplemented from RooAbsArg.

Definition at line 1208 of file RooAddPdf.cxx.

◆ redirectServersHook()

 bool RooAddPdf::redirectServersHook ( const RooAbsCollection & , bool , bool , bool )
inlineoverrideprotectedvirtual

Coefficient error counter.

Reimplemented from RooAbsPdf.

Definition at line 150 of file RooAddPdf.h.

◆ resetErrorCounters()

 void RooAddPdf::resetErrorCounters ( Int_t resetValue = 10 )
overridevirtual

Reset error counter to given value, limiting the number of future error messages for this pdf to 'resetValue'.

Reimplemented from RooAbsPdf.

Definition at line 820 of file RooAddPdf.cxx.

◆ selectNormalization()

 void RooAddPdf::selectNormalization ( const RooArgSet * depSet = 0, bool force = false )
overrideprotectedvirtual

Interface function used by test statistics to freeze choice of observables for interpretation of fraction coefficients.

Reimplemented from RooAbsReal.

Definition at line 1026 of file RooAddPdf.cxx.

◆ selectNormalizationRange()

 void RooAddPdf::selectNormalizationRange ( const char * rangeName = 0, bool force = false )
overrideprotectedvirtual

Interface function used by test statistics to freeze choice of range for interpretation of fraction coefficients.

Reimplemented from RooAbsReal.

Definition at line 1047 of file RooAddPdf.cxx.

◆ selfNormalized()

inlineoverridevirtual

Shows if a PDF is self-normalized, which means that no attempt is made to add a normalization term.

Always returns false, unless a PDF overrides this function.

Reimplemented from RooAbsPdf.

Definition at line 54 of file RooAddPdf.h.

◆ setCacheAndTrackHints()

 void RooAddPdf::setCacheAndTrackHints ( RooArgSet & trackNodes )
overridevirtual

Label OK'ed components of a RooAddPdf with cache-and-track.

Reimplemented from RooAbsArg.

Definition at line 1190 of file RooAddPdf.cxx.

◆ updateCoefficients()

 void RooAddPdf::updateCoefficients ( CacheElem & cache, const RooArgSet * nset ) const
protected

Update the coefficient values in the given cache element: calculate new remainder fraction, normalize fractions obtained from extended ML terms to unity, and multiply the various range and dimensional corrections needed in the current use context.

Definition at line 580 of file RooAddPdf.cxx.

Friends And Related Symbol Documentation

friend

Definition at line 125 of file RooAddPdf.h.

◆ _allExtendable

protected

Definition at line 145 of file RooAddPdf.h.

◆ _codeReg

mutableprotected

Definition at line 138 of file RooAddPdf.h.

◆ _coefCache

protected

Definition at line 102 of file RooAddPdf.h.

◆ _coefErrCount

mutableprotected

Definition at line 148 of file RooAddPdf.h.

◆ _coefList

protected

Definition at line 141 of file RooAddPdf.h.

◆ _copyOfLastNormSet

mutableprivate

!

Definition at line 160 of file RooAddPdf.h.

◆ _haveLastCoef

protected

List of supplemental normalization factors.

Definition at line 144 of file RooAddPdf.h.

◆ _idOfLastUsedNormSet

mutableprivate

!

Definition at line 159 of file RooAddPdf.h.

◆ _pdfList

protected

Registry of component analytical integration codes.

Definition at line 140 of file RooAddPdf.h.

◆ _projCacheMgr

mutableprotected

Definition at line 120 of file RooAddPdf.h.

◆ _projectCoefs

protected

Definition at line 101 of file RooAddPdf.h.

◆ _recursive

protected

Definition at line 146 of file RooAddPdf.h.

◆ _refCoefNorm

mutableprotected

Definition at line 98 of file RooAddPdf.h.

◆ _refCoefRangeName

mutableprotected

Definition at line 99 of file RooAddPdf.h.