RooFit Core

RooFit core classes. These provide the infrastructure for building likelihood models.

Classes
class	RooFit::Evaluator
	Evaluates a RooAbsReal object in other ways than recursive graph traversal. More...
class	Roo1DTable
	One-dimensional table. More...
class	RooAbsAnaConvPdf
	Base class for PDFs that represent a physics model that can be analytically convolved with a resolution model. More...
class	RooAbsArg
	Common abstract base class for objects that represent a value and a "shape" in RooFit. More...
class	RooAbsBinning
	Abstract base class for RooRealVar binning definitions. More...
class	RooAbsCache
	Abstract base class for data members of RooAbsArgs that cache other (composite) RooAbsArg expressions. More...
class	RooAbsCachedPdf
	Abstract base class for p.d.f.s that need or want to cache their evaluate() output in a RooHistPdf defined in terms of the used observables. More...
class	RooAbsCachedReal
	Abstract base class for functions that need or want to cache their evaluate() output in a RooHistFunc defined in terms of the used observables. More...
class	RooAbsCacheElement
	Abstract base class for objects to be stored in RooAbsCache cache manager objects. More...
class	RooAbsCategory
	A space to attach TBranches. More...
class	RooAbsCategoryLValue
	Abstract base class for objects that represent a discrete value that can be set from the outside, i.e. More...
class	RooAbsCollection
	Abstract container object that can hold multiple RooAbsArg objects. More...
class	RooAbsData
	Abstract base class for binned and unbinned datasets. More...
class	RooAbsDataStore
	Abstract base class for a data collection. More...
class	RooAbsFunc
	Abstract interface for evaluating a real-valued function of one real variable and performing numerical algorithms on it. More...
class	RooAbsGenContext
	Abstract base class for generator contexts of RooAbsPdf objects. More...
class	RooAbsHiddenReal
	Base class for objects that want to hide their return value from interactive use, e.g. More...
class	RooAbsIntegrator
	Abstract interface for integrators of real-valued functions that implement the RooAbsFunc interface. More...
class	RooAbsLValue
	Abstract base class for objects that are lvalues, i.e. More...
class	RooAbsMCStudyModule
	Base class for add-on modules to RooMCStudy that can perform additional calculations on each generate+fit cycle managed by RooMCStudy. More...
class	RooAbsMoment
class	RooAbsNumGenerator
	Abstract base class for MC event generator implementations like RooAcceptReject and RooFoam. More...
class	RooAbsOptTestStatistic
	Abstract base class for test statistics objects that evaluate a function or PDF at each point of a given dataset. More...
class	RooAbsPdf
	Abstract interface for all probability density functions. More...
class	RooAbsProxy
	Abstract interface for proxy classes. More...
class	RooAbsReal
	Abstract base class for objects that represent a real value and implements functionality common to all real-valued objects such as the ability to plot them, to construct integrals of them, the ability to advertise (partial) analytical integrals etc. More...
class	RooAbsRealLValue
	Abstract base class for objects that represent a real value that may appear on the left hand side of an equation ('lvalue'). More...
class	RooAbsSelfCached< Base_t >
	Abstract base class for functions whose output is cached in terms of a histogram in all observables between getVal() and evaluate(). More...
class	RooAbsStudy
	Abstract base class for RooStudyManager modules. More...
class	RooAbsTestStatistic
	Abstract base class for all test statistics. More...
class	RooAcceptReject
	Generic Monte Carlo toy generator implement the accept/reject sampling technique on any positively valued function. More...
class	RooAdaptiveGaussKronrodIntegrator1D
	Implements the Gauss-Kronrod integration algorithm. More...
class	RooAdaptiveIntegratorND
	Adaptive one-dimensional numerical integration algorithm. More...
class	RooAddGenContext
	Efficient implementation of the generator context specific for RooAddPdf PDFs. More...
class	RooAddition
	Calculates the sum of a set of RooAbsReal terms, or when constructed with two sets, it sums the product of the terms in the two sets. More...
class	RooAddPdf
	Efficient implementation of a sum of PDFs of the form. More...
class	RooAICRegistry
	Utility class for operator p.d.f classes that keeps track of analytical integration codes and associated normalization and integration sets. More...
class	RooArgProxy
	Abstract interface for RooAbsArg proxy classes. More...
class	RooBinIntegrator
	Computes the integral over a binned distribution by summing the bin contents of all bins. More...
class	RooBinnedGenContext
	Efficient implementation of the generator context specific for binned pdfs. More...
class	RooBinnedL
	Implements a -log(likelihood) calculation from a dataset (assumed to be binned) and a PDF. More...
class	RooBinning
	Implements a RooAbsBinning in terms of an array of boundary values, posing no constraints on the choice of binning, thus allowing variable bin sizes. More...
class	RooBinningCategory
	Provides a real-to-category mapping defined by a series of thresholds. More...
class	RooBinWidthFunction
	Returns the bin width (or volume) given a RooHistFunc. More...
class	RooBrentRootFinder
	Implement the abstract 1-dimensional root finding interface using the Brent-Decker method. More...
class	RooCachedPdf
	Implementation of RooAbsCachedPdf that can cache any external RooAbsPdf input function provided in the constructor. More...
class	RooCachedReal
	Implementation of RooAbsCachedReal that can cache any external RooAbsReal input function provided in the constructor. More...
class	RooCacheManager< T >
	Manages the storage of any type of data indexed on the choice of normalization and optionally the set of integrated observables. More...
class	RooCategory
	Object to represent discrete states. More...
class	RooChangeTracker
	Meta object that tracks value changes in a given set of RooAbsArgs by registering itself as value client of these objects. More...
class	RooChi2Var
	Simple \( \chi^2 \) calculation from a binned dataset and a PDF. More...
class	RooClassFactory
	Similar to TTree::MakeClass(), generates skeleton code for RooAbsPdf and RooAbsReal functions given a list of input parameter names. More...
class	RooCmdArg
	Named container for two doubles, two integers two object points and three string pointers that can be passed as generic named arguments to a variety of RooFit end user methods. More...
class	RooCmdConfig
	Configurable parser for RooCmdArg named arguments. More...
class	RooCollectionProxy< RooCollection_t >
	Concrete proxy for RooArgSet or RooArgList objects. More...
class	RooCompositeDataStore
	Combines several disjunct datasets into one. More...
class	RooConstraintSum
	Calculates the sum of the -(log) likelihoods of a set of RooAbsPfs that represent constraint functions. More...
class	RooConstVar
	Represents a constant real-valued object. More...
class	RooConvCoefVar
	Auxiliary class that represents the coefficient of a RooAbsAnaConvPdf implementation as a separate RooAbsReal object to be able to interface these coefficient terms with the generic RooRealIntegral integration mechanism. More...
class	RooConvGenContext
	Efficient implementation of the generator context specific for RooAbsAnaConvPdf objects. More...
class	RooConvIntegrandBinding
	Implementation of RooAbsFunc that represent the integrand of a generic (numeric) convolution A (x) B so that it can be passed to a numeric integrator. More...
class	RooCurve
	One-dimensional graphical representation of a real-valued function. More...
class	RooDataHist
	Container class to hold N-dimensional binned data. More...
class	RooDataHistSliceIter
	Iterates over all bins in a RooDataHist that occur in a slice defined by the bin coordinates of the input sliceSet. More...
class	RooDataProjBinding
	adaptor that projects a real function via summation of states provided in a dataset. More...
class	RooDataSet
	Container class to hold unbinned data. More...
class	RooDerivative
	Represents the first, second, or third order derivative of any RooAbsReal as calculated (numerically) by the MathCore Richardson derivator class. More...
class	RooDirItem
	Utility base class for RooFit objects that are to be attached to ROOT directories. More...
class	RooDLLSignificanceMCSModule
	Add-on module to RooMCStudy that calculates the significance of a signal by comparing the likelihood of a fit fit with a given parameter floating with a fit with that given parameter fixed to a nominal value (usually zero). More...
class	RooDouble
	Minimal implementation of a TObject holding a double value. More...
class	RooEffGenContext
	Specialized generator context for p.d.fs represented by class RooEffProd, which are p.d.fs multiplied with an efficiency function. More...
class	RooEfficiency
	A PDF helper class to fit efficiencies parameterized by a supplied function F. More...
class	RooEllipse
	Two-dimensional ellipse that can be used to represent an error contour. More...
class	RooErrorVar
	Auxiliary class that represents the error of a RooRealVar as a separate object. More...
class	RooExpensiveObjectCache
	Singleton class that serves as repository for objects that are expensive to calculate. More...
class	RooExtendedTerm
	A p.d.f with no observables that only introduces an extended ML term for a given number of expected events term when an extended ML is constructed. More...
class	RooFactoryWSTool
	Implementation detail of the RooWorkspace. More...
class	RooFFTConvPdf
	PDF for the numerical (FFT) convolution of two PDFs. More...
class	RooFirstMoment
class	RooFoamGenerator
	Generic Monte Carlo toy generator that implement the TFOAM sampling technique on any positively valued function. More...
class	RooFormula
	Internally uses ROOT's TFormula to compute user-defined expressions of RooAbsArgs. More...
class	RooFracRemainder
	Calculates the remainder fraction of a sum of RooAbsReal fraction, i.e (1 - sum_i a_i). More...
class	RooFunctor
	Lightweight interface adaptor that exports a RooAbsPdf as a functor. More...
class	RooGaussKronrodIntegrator1D
	Implements the Gauss-Kronrod integration algorithm. More...
class	RooGenContext
	Implements a universal generator context for all RooAbsPdf classes that do not have or need a specialized generator context. More...
class	RooGenericPdf
	Implementation of a probability density function that takes a RooArgList of servers and a C++ expression string defining how its value should be calculated from the given list of servers. More...
class	RooGenFitStudy
	Abstract base class for RooStudyManager modules. More...
class	RooGenProdProj
	General form of projected integral of product of PDFs, utility class for RooProdPdf. More...
class	RooHist
	Graphical representation of binned data based on the TGraphAsymmErrors class. More...
class	RooHistError
	Singleton class used to calculate the error bars for each bin of a RooHist object. More...
class	RooHistFunc
	A real-valued function sampled from a multidimensional histogram. More...
class	RooHistPdf
	A propability density function sampled from a multidimensional histogram. More...
class	RooImproperIntegrator1D
	Special numeric integrator that can handle integrals over open domains. More...
class	RooInvTransform
	Lightweight function binding that returns the inverse of an input function binding. More...
class	RooLinkedList
	Collection class for internal use, storing a collection of RooAbsArg pointers in a doubly linked list. More...
class	RooLinkedListElem
	Link element for the RooLinkedList class. More...
class	RooLinTransBinning
	Special binning implementation for RooLinearVar that transforms the binning of the RooLinearVar input variable in the same way that RooLinearVar does. More...
class	RooMCIntegrator
	Implements an adaptive multi-dimensional Monte Carlo numerical integration, following the VEGAS algorithm originally described in G. More...
class	RooMCStudy
	Helper class to facilitate Monte Carlo studies such as 'goodness-of-fit' studies, that involve fitting a PDF to multiple toy Monte Carlo sets. More...
class	RooMinimizer
	Wrapper class around ROOT::Math::Minimizer that provides a seamless interface between the minimizer functionality and the native RooFit interface. More...
class	RooMoment
class	RooMsgService
	Singleton class that organizes messages generated in RooFit. More...
class	RooMultiCategory
	Connects several RooAbsCategory objects into a single category. More...
class	RooMultiVarGaussian
	Multivariate Gaussian p.d.f. More...
class	RooNameReg
	Registry for const char* names. More...
class	RooNLLVar
	Implements a -log(likelihood) calculation from a dataset and a PDF. More...
class	RooNormSetCache
	Class RooNormSet cache manage the bookkeeping of multiple instances of sets of integration and normalization observables that effectively have the same definition. More...
class	RooNumber
	Provides numeric constants used in RooFit. More...
class	RooNumCdf
	Implementation of RooNumRunningInt that calculates cumulative distribution functions from p.d.f.s. More...
class	RooNumConvolution
	Numeric 1-dimensional convolution operator PDF. More...
class	RooNumConvPdf
	Numeric 1-dimensional convolution operator PDF. More...
class	RooNumGenConfig
	Holds the configuration parameters of the various numeric integrators used by RooRealIntegral. More...
class	RooNumGenFactory
	Factory to instantiate numeric integrators from a given function binding and a given configuration. More...
class	RooNumIntConfig
	Holds the configuration parameters of the various numeric integrators used by RooRealIntegral. More...
class	RooNumIntFactory
	Factory to instantiate numeric integrators from a given function binding and a given configuration. More...
class	RooNumRunningInt
	Implementation of RooAbsCachedReal that represents a running integral. More...
class	RooObjCacheManager
	Implementation of a RooCacheManager<RooAbsCacheElement> that specializes in the storage of cache elements that contain RooAbsArg objects. More...
class	RooParamBinning
	Implementation of RooAbsBinning that constructs a binning with a range definition that depends on external RooAbsReal objects. More...
class	RooPlot
	Plot frame and a container for graphics objects within that frame. More...
class	RooPlotable
	Class RooPotable is a base class for objects that can be inserted into RooPlots and take advantage of its internal normalization and axis range adjustment features. More...
class	RooPolyVar
	A RooAbsReal implementing a polynomial in terms of a list of RooAbsReal coefficients. More...
class	RooPrintable
	A 'mix-in' base class that define the standard RooFit plotting and printing methods. More...
class	RooProdGenContext
	Efficient implementation of the generator context specific for RooProdPdf PDFs. More...
class	RooProdPdf
	Efficient implementation of a product of PDFs of the form. More...
class	RooProduct
	Represents the product of a given set of RooAbsReal objects. More...
class	RooProfileLL
	Implements the profile likelihood estimator for a given likelihood and set of parameters of interest. More...
class	RooProjectedPdf
	A RooAbsPdf implementation that represent a projection of a given input p.d.f and the object returned by RooAbsPdf::createProjection. More...
class	RooPullVar
	Represents the pull of a measurement w.r.t. More...
class	RooQuasiRandomGenerator
	This class generates the quasi-random (aka "low discrepancy") sequence for dimensions up to 12 using the Niederreiter base 2 algorithm described in Bratley, Fox, Niederreiter, ACM Trans. More...
class	RooRandom
	This class provides a static interface for generating random numbers. More...
class	RooRandomizeParamMCSModule
	Add-on module to RooMCStudy that allows you to randomize input generation parameters. More...
class	RooRangeBinning
	Binning/range definition that only defines a range but no binning. More...
class	RooRangeBoolean
	Returns 1.0 if variable is within given a range and 0.0 otherwise. More...
class	RooRatio
	Represents the ratio of two RooAbsReal objects. More...
class	RooRealBinding
	Lightweight interface adaptor that binds a RooAbsReal object to a subset of its servers and present it as a simple array oriented interface. More...
class	RooRealConstant
	Provides static functions to create and keep track of RooRealVar constants. More...
class	RooRealIntegral
	Performs hybrid numerical/analytical integrals of RooAbsReal objects. More...
class	RooFit::TestStatistics::RooRealL
	RooAbsReal that wraps RooAbsL likelihoods for use in RooFit outside of the RooMinimizer context. More...
class	RooRealMPFE
	Multi-processor front-end for parallel calculation of RooAbsReal objects. More...
class	RooRealSumPdf
	Implements a PDF constructed from a sum of functions: More...
class	RooRealVar
	Variable that can be changed from the outside. More...
class	RooRealVarSharedProperties
	Implementation of RooSharedProperties that stores the properties of a RooRealVar that are shared among clones. More...
class	RooRecursiveFraction
	A RooAbsReal implementation that calculates the plain fraction of sum of RooAddPdf components from a set of recursive fractions: for a given set of input fractions \( {a_i} \), it returns \( a_n * \prod_{i=0}^{n-1} (1 - a_i) \). More...
class	RooRombergIntegrator
	Adaptive numerical integration algorithm. More...
class	RooSecondMoment
class	RooSharedProperties
	Class RooSharedProperties is the base class for shared properties that can be stored in RooSharedPropertiesList. More...
class	RooSimGenContext
	Efficient implementation of the generator context specific for RooSimultaneous PDFs when generating more than one of the component pdfs. More...
class	RooSimSplitGenContext
	Efficient implementation of the generator context specific for RooSimultaneous PDFs when generating more than one of the component pdfs. More...
class	RooSimultaneous
	Facilitates simultaneous fitting of multiple PDFs to subsets of a given dataset. More...
class	RooStringVar
	A RooAbsArg implementing string values. More...
class	RooStudyManager
	Utility class to manage studies that consist of repeated applications of generate-and-fit operations on a workspace. More...
class	RooStudyPackage
	Utility class to manage studies that consist of repeated applications of generate-and-fit operations on a workspace. More...
class	RooSubsidiaryL
	Calculates the sum of the -(log) likelihoods of a set of RooAbsPdf objects that represent subsidiary or constraint functions. More...
class	RooFit::TestStatistics::RooSumL
	Likelihood class that sums over multiple -log components. More...
class	RooSuperCategory
	Joins several RooAbsCategoryLValue objects into a single category. More...
class	RooTable
	Abstract interface for table objects. More...
class	RooTemplateProxy< T >
class	RooThresholdCategory
	A real-to-category mapping defined by a series of thresholds. More...
class	RooTrace
	Controls the memory tracing hooks in all RooFit objects. More...
class	RooTreeDataStore
	TTree-backed data storage. More...
class	RooTruthModel
	Implements a RooResolution model that corresponds to a delta function. More...
class	RooUnbinnedL
	A -log(likelihood) calculation from a dataset (assumed to be unbinned) and a PDF. More...
class	RooUniformBinning
	Implementation of RooAbsBinning that provides a uniform binning in 'n' bins between the range end points. More...
class	RooVectorDataStore
	Uses std::vector to store data columns. More...
class	RooWorkspace
	Persistable container for RooFit projects. More...