ROOT  6.06/09
Reference Guide
Public Member Functions | Static Public Member Functions | Protected Member Functions | Static Protected Member Functions | Protected Attributes | Static Protected Attributes | Friends | List of all members
RooDataSet Class Reference

Definition at line 29 of file RooDataSet.h.

Public Member Functions

voidoperator new (size_t bytes)
 
void operator delete (void *ptr)
 
 RooDataSet ()
 Default constructor for persistence. More...
 
 RooDataSet (const char *name, const char *title, const RooArgSet &vars, const char *wgtVarName=0)
 Constructor of an empty data set from a RooArgSet defining the dimensions of the data space. More...
 
 RooDataSet (const char *name, const char *title, const RooArgSet &vars, const RooCmdArg &arg1, const RooCmdArg &arg2=RooCmdArg(), const RooCmdArg &arg3=RooCmdArg(), const RooCmdArg &arg4=RooCmdArg(), const RooCmdArg &arg5=RooCmdArg(), const RooCmdArg &arg6=RooCmdArg(), const RooCmdArg &arg7=RooCmdArg(), const RooCmdArg &arg8=RooCmdArg())
 Construct an unbinned dataset from a RooArgSet defining the dimensions of the data space. More...
 
 RooDataSet (const char *name, const char *title, RooDataSet *data, const RooArgSet &vars, const char *cuts=0, const char *wgtVarName=0)
 Constructor of a data set from (part of) an existing data set. More...
 
 RooDataSet (const char *name, const char *title, RooDataSet *data, const RooArgSet &vars, const RooFormulaVar &cutVar, const char *wgtVarName=0)
 Constructor of a data set from (part of) an existing data set. More...
 
 RooDataSet (const char *name, const char *title, TTree *ntuple, const RooArgSet &vars, const char *cuts=0, const char *wgtVarName=0)
 Constructor of a data set from (part of) an ROOT TTRee. More...
 
 RooDataSet (const char *name, const char *title, TTree *t, const RooArgSet &vars, const RooFormulaVar &cutVar, const char *wgtVarName=0)
 Constructor of a data set from (part of) an ROOT TTRee. More...
 
 RooDataSet (RooDataSet const &other, const char *newname=0)
 Copy constructor. More...
 
virtual TObjectClone (const char *newname=0) const
 Make a clone of an object using the Streamer facility. More...
 
virtual ~RooDataSet ()
 Destructor. More...
 
virtual RooAbsDataemptyClone (const char *newName=0, const char *newTitle=0, const RooArgSet *vars=0, const char *wgtVarName=0) const
 Return an empty clone of this dataset. More...
 
RooDataHistbinnedClone (const char *newName=0, const char *newTitle=0) const
 Return binned clone of this dataset. More...
 
virtual Double_t sumEntries () const
 
virtual Double_t sumEntries (const char *cutSpec, const char *cutRange=0) const
 Return the sum of weights in all entries matching cutSpec (if specified) and in named range cutRange (if specified) More...
 
virtual RooPlotplotOnXY (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
 Special plot method for 'X-Y' datasets used in Chi^2 fitting. More...
 
Bool_t write (const char *filename)
 Write the contents of this dataset to an ASCII file with the specified name Each event will be written as a single line containing the written values of each observable in the order they were declared in the dataset and separated by whitespaces. More...
 
virtual Bool_t isWeighted () const
 Return true if dataset contains weighted events. More...
 
virtual Bool_t isNonPoissonWeighted () const
 Returns true if histogram contains bins with entries with a non-integer weight. More...
 
virtual Double_t weight () const
 Return event weight of current event. More...
 
virtual Double_t weightSquared () const
 Return event weight of current event. More...
 
virtual void weightError (Double_t &lo, Double_t &hi, ErrorType etype=SumW2) const
 Return asymmetric error on weight. (Dummy implementation returning zero) More...
 
Double_t weightError (ErrorType etype=SumW2) const
 Return error on current weight (dummy implementation returning zero) More...
 
virtual const RooArgSetget (Int_t index) const
 Return RooArgSet with coordinates of event 'index'. More...
 
virtual const RooArgSetget () const
 Return a RooArgSet with the coordinates of the current event. More...
 
virtual void add (const RooArgSet &row, Double_t weight=1.0, Double_t weightError=0)
 Add a data point, with its coordinates specified in the 'data' argset, to the data set. More...
 
virtual void add (const RooArgSet &row, Double_t weight, Double_t weightErrorLo, Double_t weightErrorHi)
 Add a data point, with its coordinates specified in the 'data' argset, to the data set. More...
 
virtual void addFast (const RooArgSet &row, Double_t weight=1.0, Double_t weightError=0)
 Add a data point, with its coordinates specified in the 'data' argset, to the data set. More...
 
void append (RooDataSet &data)
 Add all data points of given data set to this data set. More...
 
Bool_t merge (RooDataSet *data1, RooDataSet *data2=0, RooDataSet *data3=0, RooDataSet *data4=0, RooDataSet *data5=0, RooDataSet *data6=0)
 
Bool_t merge (std::list< RooDataSet * > dsetList)
 Merge columns of supplied data set(s) with this data set. More...
 
virtual RooAbsArgaddColumn (RooAbsArg &var, Bool_t adjustRange=kTRUE)
 Add a column with the values of the given (function) argument to this dataset. More...
 
virtual RooArgSetaddColumns (const RooArgList &varList)
 Add a column with the values of the given list of (function) argument to this dataset. More...
 
TH2FcreateHistogram (const RooAbsRealLValue &var1, const RooAbsRealLValue &var2, const char *cuts="", const char *name="hist") const
 Create a TH2F histogram of the distribution of the specified variable using this dataset. More...
 
TH2FcreateHistogram (const RooAbsRealLValue &var1, const RooAbsRealLValue &var2, Int_t nx, Int_t ny, const char *cuts="", const char *name="hist") const
 Create a TH2F histogram of the distribution of the specified variable using this dataset. More...
 
void printMultiline (std::ostream &os, Int_t contents, Bool_t verbose=kFALSE, TString indent="") const
 Print info about this dataset to the specified output stream. More...
 
virtual void printArgs (std::ostream &os) const
 Print argument of dataset, i.e. the observable names. More...
 
virtual void printValue (std::ostream &os) const
 Print value of the dataset, i.e. the sum of weights contained in the dataset. More...
 
void SetName (const char *name)
 Change the name of this dataset into the given name. More...
 
void SetNameTitle (const char *name, const char *title)
 Change the title of this dataset into the given name. More...
 
- Public Member Functions inherited from RooAbsData
 RooAbsData ()
 Default constructor. More...
 
 RooAbsData (const char *name, const char *title, const RooArgSet &vars, RooAbsDataStore *store=0)
 Constructor from a set of variables. More...
 
 RooAbsData (const RooAbsData &other, const char *newname=0)
 Copy constructor. More...
 
virtual ~RooAbsData ()
 Destructor. More...
 
RooAbsDatareduce (const RooCmdArg &arg1, const RooCmdArg &arg2=RooCmdArg(), const RooCmdArg &arg3=RooCmdArg(), const RooCmdArg &arg4=RooCmdArg(), const RooCmdArg &arg5=RooCmdArg(), const RooCmdArg &arg6=RooCmdArg(), const RooCmdArg &arg7=RooCmdArg(), const RooCmdArg &arg8=RooCmdArg())
 Create a reduced copy of this dataset. More...
 
RooAbsDatareduce (const char *cut)
 Create a subset of the data set by applying the given cut on the data points. More...
 
RooAbsDatareduce (const RooFormulaVar &cutVar)
 Create a subset of the data set by applying the given cut on the data points. More...
 
RooAbsDatareduce (const RooArgSet &varSubset, const char *cut=0)
 Create a subset of the data set by applying the given cut on the data points and reducing the dimensions to the specified set. More...
 
RooAbsDatareduce (const RooArgSet &varSubset, const RooFormulaVar &cutVar)
 Create a subset of the data set by applying the given cut on the data points and reducing the dimensions to the specified set. More...
 
RooAbsDataStorestore ()
 
const RooAbsDataStorestore () const
 
const TTreetree () const
 
void convertToVectorStore ()
 Convert tree-based storage to vector-based storage. More...
 
void attachBuffers (const RooArgSet &extObs)
 
void resetBuffers ()
 
virtual void Draw (Option_t *option="")
 Forward draw command to data store. More...
 
void checkInit () const
 
virtual Bool_t changeObservableName (const char *from, const char *to)
 
virtual void fill ()
 
virtual Bool_t valid () const
 
virtual Int_t numEntries () const
 
virtual void reset ()
 
Bool_t getRange (RooRealVar &var, Double_t &lowest, Double_t &highest, Double_t marginFrac=0, Bool_t symMode=kFALSE) const
 Fill Doubles 'lowest' and 'highest' with the lowest and highest value of observable 'var' in this dataset. More...
 
virtual Roo1DTabletable (const RooArgSet &catSet, const char *cuts="", const char *opts="") const
 Construct table for product of categories in catSet. More...
 
virtual Roo1DTabletable (const RooAbsCategory &cat, const char *cuts="", const char *opts="") const
 Create and fill a 1-dimensional table for given category column This functions is the equivalent of plotOn() for category dimensions. More...
 
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
 Plot dataset on specified frame. More...
 
virtual RooPlotplotOn (RooPlot *frame, const RooLinkedList &cmdList) const
 Plot dataset on specified frame. More...
 
virtual TListsplit (const RooAbsCategory &splitCat, Bool_t createEmptyDataSets=kFALSE) const
 Split dataset into subsets based on states of given splitCat in this dataset. More...
 
Bool_t canSplitFast () const
 
RooAbsDatagetSimData (const char *idxstate)
 
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 dataset. More...
 
TH1createHistogram (const char *name, const RooAbsRealLValue &xvar, const RooLinkedList &argList) const
 Internal method that implements histogram filling. More...
 
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 dataset for the variables with given names The range of each observable that is histogrammed is always automatically calculated from the distribution in the dataset. More...
 
virtual TH1fillHistogram (TH1 *hist, const RooArgList &plotVars, const char *cuts="", const char *cutRange=0) const
 Loop over columns of our tree data and fill the input histogram. More...
 
virtual void Print (Option_t *options=0) const
 Print TNamed name and title. More...
 
virtual void printName (std::ostream &os) const
 Print name of dataset. More...
 
virtual void printTitle (std::ostream &os) const
 Print title of dataset. More...
 
virtual void printClassName (std::ostream &os) const
 Print class name of dataset. More...
 
virtual Int_t defaultPrintContents (Option_t *opt) const
 Define default print options, for a given print style. More...
 
void setDirtyProp (Bool_t flag)
 Control propagation of dirty flags from observables in dataset. More...
 
Double_t moment (RooRealVar &var, Double_t order, const char *cutSpec=0, const char *cutRange=0) const
 Calculate moment < (X - <X>)^n > where n = order. More...
 
Double_t moment (RooRealVar &var, Double_t order, Double_t offset, const char *cutSpec=0, const char *cutRange=0) const
 Return the 'order'-ed moment of observable 'var' in this dataset. More...
 
Double_t standMoment (RooRealVar &var, Double_t order, const char *cutSpec=0, const char *cutRange=0) const
 Calculate standardized moment < (X - <X>)^n > / sigma^n, where n = order. More...
 
Double_t mean (RooRealVar &var, const char *cutSpec=0, const char *cutRange=0) const
 
Double_t sigma (RooRealVar &var, const char *cutSpec=0, const char *cutRange=0) const
 
Double_t skewness (RooRealVar &var, const char *cutSpec=0, const char *cutRange=0) const
 
Double_t kurtosis (RooRealVar &var, const char *cutSpec=0, const char *cutRange=0) const
 
Double_t covariance (RooRealVar &x, RooRealVar &y, const char *cutSpec=0, const char *cutRange=0) const
 
Double_t correlation (RooRealVar &x, RooRealVar &y, const char *cutSpec=0, const char *cutRange=0) const
 
TMatrixDSymcovarianceMatrix (const char *cutSpec=0, const char *cutRange=0) const
 
TMatrixDSymcorrelationMatrix (const char *cutSpec=0, const char *cutRange=0) const
 
TMatrixDSymcovarianceMatrix (const RooArgList &vars, const char *cutSpec=0, const char *cutRange=0) const
 
TMatrixDSymcorrelationMatrix (const RooArgList &vars, const char *cutSpec=0, const char *cutRange=0) const
 
RooRealVarmeanVar (RooRealVar &var, const char *cutSpec=0, const char *cutRange=0) const
 Create a RooRealVar containing the mean of observable 'var' in this dataset. More...
 
RooRealVarrmsVar (RooRealVar &var, const char *cutSpec=0, const char *cutRange=0) const
 Create a RooRealVar containing the RMS of observable 'var' in this dataset. More...
 
virtual RooPlotstatOn (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 statistics information to the specified frame. More...
 
virtual RooPlotstatOn (RooPlot *frame, const char *what, const char *label="", Int_t sigDigits=2, Option_t *options="NELU", Double_t xmin=0.15, Double_t xmax=0.65, Double_t ymax=0.85, const char *cutSpec=0, const char *cutRange=0, const RooCmdArg *formatCmd=0)
 Implementation back-end of statOn() mehtod with named arguments. More...
 
Bool_t hasFilledCache () const
 
void addOwnedComponent (const char *idxlabel, RooAbsData &data)
 
- Public Member Functions inherited from TNamed
 TNamed ()
 
 TNamed (const char *name, const char *title)
 
 TNamed (const TString &name, const TString &title)
 
 TNamed (const TNamed &named)
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. More...
 
virtual ~TNamed ()
 
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare two TNamed objects. More...
 
virtual void Copy (TObject &named) const
 Copy this to obj. More...
 
virtual void FillBuffer (char *&buffer)
 Encode TNamed into output buffer. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
virtual Bool_t IsSortable () const
 
virtual void SetTitle (const char *title="")
 Change (i.e. set) the title of the TNamed. More...
 
virtual void ls (Option_t *option="") const
 List TNamed name and title. More...
 
virtual Int_t Sizeof () const
 Return size of the TNamed part of the TObject. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current pad. More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
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. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual Option_tGetOption () const
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
Bool_t IsOnHeap () const
 
Bool_t IsZombie () const
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 
voidoperator new (size_t sz)
 
voidoperator new[] (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz, void *vp)
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
void ResetBit (UInt_t f)
 
Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
void InvertBit (UInt_t f)
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
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). More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
- Public Member Functions inherited from RooPrintable
 RooPrintable ()
 
virtual ~RooPrintable ()
 
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'. More...
 
virtual void printAddress (std::ostream &os) const
 Print class name of object. More...
 
virtual void printExtras (std::ostream &os) const
 Interface to print extras of object. More...
 
virtual void printTree (std::ostream &os, TString indent="") const
 Interface for tree structure printing of object. More...
 
virtual StyleOption defaultPrintStyle (Option_t *opt) const
 
- Public Member Functions inherited from RooDirItem
 RooDirItem ()
 Default constructor. More...
 
 RooDirItem (const RooDirItem &other)
 Copy constructor. More...
 
virtual ~RooDirItem ()
 Destructor. More...
 

Static Public Member Functions

static RooDataSetread (const char *filename, const RooArgList &variables, const char *opts="", const char *commonPath="", const char *indexCatName=0)
 Read given list of ascii files, and construct a data set, using the given ArgList as structure definition. More...
 
- Static Public Member Functions inherited from RooAbsData
static void claimVars (RooAbsData *)
 
static Bool_t releaseVars (RooAbsData *)
 If return value is true variables can be deleted. More...
 
static void setDefaultStorageType (StorageType s)
 
static StorageType getDefaultStorageType ()
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- 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(). More...
 
static void nameFieldLength (Int_t newLen)
 Set length of field reserved from printing name of RooAbsArgs in multi-line collection printing to given amount. More...
 

Protected Member Functions

virtual RooAbsDatacacheClone (const RooAbsArg *newCacheOwner, const RooArgSet *newCacheVars, const char *newName=0)
 Return a clone of this dataset containing only the cached variables. More...
 
void initialize (const char *wgtVarName)
 Initialize the dataset. More...
 
RooAbsDatareduceEng (const RooArgSet &varSubset, const RooFormulaVar *cutVar, const char *cutRange=0, Int_t nStart=0, Int_t nStop=2000000000, Bool_t copyCache=kTRUE)
 Implementation of RooAbsData virtual method that drives the RooAbsData::reduce() methods. More...
 
 RooDataSet (const char *name, const char *title, RooDataSet *ntuple, const RooArgSet &vars, const RooFormulaVar *cutVar, const char *cutRange, int nStart, int nStop, Bool_t copyCache, const char *wgtVarName=0)
 Protected constructor for internal use only. More...
 
RooArgSet addWgtVar (const RooArgSet &origVars, const RooAbsArg *wgtVar)
 Helper function for constructor that adds optional weight variable to construct total set of observables. More...
 
- Protected Member Functions inherited from RooAbsData
Double_t corrcov (RooRealVar &x, RooRealVar &y, const char *cutSpec, const char *cutRange, Bool_t corr) const
 Internal method to calculate single correlation and covariance elements. More...
 
TMatrixDSymcorrcovMatrix (const RooArgList &vars, const char *cutSpec, const char *cutRange, Bool_t corr) const
 Return covariance matrix from data for given list of observables. More...
 
virtual void optimizeReadingWithCaching (RooAbsArg &arg, const RooArgSet &cacheList, const RooArgSet &keepObsList)
 Prepare dataset for use with cached constant terms listed in 'cacheList' of expression 'arg'. More...
 
Bool_t allClientsCached (RooAbsArg *, const RooArgSet &)
 Utility function that determines if all clients of object 'var' appear in given list of cached nodes. More...
 
virtual RooPlotplotOn (RooPlot *frame, PlotOpt o) const
 Create and fill a histogram of the frame's variable and append it to the frame. More...
 
virtual RooPlotplotAsymOn (RooPlot *frame, const RooAbsCategoryLValue &asymCat, PlotOpt o) const
 Create and fill a histogram with the asymmetry N[+] - N[-] / ( N[+] + N[-] ), where N(+/-) is the number of data points with asymCat=+1 and asymCat=-1 as function of the frames variable. More...
 
virtual RooPlotplotEffOn (RooPlot *frame, const RooAbsCategoryLValue &effCat, PlotOpt o) const
 Create and fill a histogram with the effiency N[1] / ( N[1] + N[0] ), where N(1/0) is the number of data points with effCat=1 and effCat=0 as function of the frames variable. More...
 
virtual void cacheArgs (const RooAbsArg *owner, RooArgSet &varSet, const RooArgSet *nset=0, Bool_t skipZeroWeights=kFALSE)
 Internal method – Cache given set of functions with data. More...
 
virtual void resetCache ()
 Internal method – Remove cached function values. More...
 
virtual void setArgStatus (const RooArgSet &set, Bool_t active)
 
virtual void attachCache (const RooAbsArg *newOwner, const RooArgSet &cachedVars)
 Internal method – Attach dataset copied with cache contents to copied instances of functions. More...
 
RooRealVardataRealVar (const char *methodname, RooRealVar &extVar) const
 Internal method to check if given RooRealVar maps to a RooRealVar in this dataset. More...
 
- Protected Member Functions inherited from TObject
void MakeZombie ()
 
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
- Protected Member Functions inherited from RooDirItem
void appendToDir (TObject *obj, Bool_t forceMemoryResident=kFALSE)
 Append object to directory. More...
 
void removeFromDir (TObject *obj)
 Remove object from directory it was added to. More...
 

Static Protected Member Functions

static void cleanup ()
 Clear memoery pool on exit to avoid reported memory leaks. More...
 

Protected Attributes

RooArgSet _varsNoWgt
 
RooRealVar_wgtVar
 
- Protected Attributes inherited from RooAbsData
RooArgSet _vars
 
RooArgSet _cachedVars
 
TIterator_iterator
 External variables cached with this data set. More...
 
TIterator_cacheIter
 Iterator over dimension variables. More...
 
RooAbsDataStore_dstore
 Iterator over cached variables. More...
 
std::map< std::string, RooAbsData * > _ownedComponents
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 
- Protected Attributes inherited from RooDirItem
TDirectory_dir
 

Static Protected Attributes

static char * _poolBegin = 0
 
static char * _poolCur = 0
 Start of memory pool. More...
 
static char * _poolEnd = 0
 Next free slot in memory pool. More...
 
- Static Protected Attributes inherited from RooAbsData
static StorageType defaultStorageType =RooAbsData::Vector
 
- Static Protected Attributes inherited from RooPrintable
static Int_t _nameLength
 

Friends

class RooProdGenContext
 

Additional Inherited Members

- Public Types inherited from RooAbsData
enum  ErrorType {
  Poisson, SumW2, None, Auto,
  Expected
}
 
enum  StorageType { Tree, Vector }
 
- Public Types inherited from TObject
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
- Public Types inherited from RooPrintable
enum  ContentsOption {
  kName =1, kClassName =2, kValue =4, kArgs =8,
  kExtras =16, kAddress =32, kTitle =64, kCollectionHeader =128
}
 
enum  StyleOption {
  kInline =1, kSingleLine =2, kStandard =3, kVerbose =4,
  kTreeStructure =5
}
 

#include <RooDataSet.h>

+ Inheritance diagram for RooDataSet:
+ Collaboration diagram for RooDataSet:

Constructor & Destructor Documentation

RooDataSet::RooDataSet ( )

Default constructor for persistence.

Definition at line 182 of file RooDataSet.cxx.

Referenced by cacheClone(), Clone(), emptyClone(), read(), and reduceEng().

RooDataSet::RooDataSet ( const char *  name,
const char *  title,
const RooArgSet vars,
const char *  wgtVarName = 0 
)

Constructor of an empty data set from a RooArgSet defining the dimensions of the data space.

Definition at line 648 of file RooDataSet.cxx.

RooDataSet::RooDataSet ( const char *  name,
const char *  title,
const RooArgSet vars,
const RooCmdArg arg1,
const RooCmdArg arg2 = RooCmdArg(),
const RooCmdArg arg3 = RooCmdArg(),
const RooCmdArg arg4 = RooCmdArg(),
const RooCmdArg arg5 = RooCmdArg(),
const RooCmdArg arg6 = RooCmdArg(),
const RooCmdArg arg7 = RooCmdArg(),
const RooCmdArg arg8 = RooCmdArg() 
)

Construct an unbinned dataset from a RooArgSet defining the dimensions of the data space.

Optionally, data can be imported at the time of construction.

This constructor takes the following optional arguments

Import(TTree*) – Import contents of given TTree. Only braches of the TTree that have names corresponding to those of the RooAbsArgs that define the RooDataSet are imported. ImportFromFile(const char* fileName, const char* treeName) – Import tree with given name from file with given name.

Import(RooDataSet&) – Import contents of given RooDataSet. Only observables that are common with the definition of this dataset will be imported

Index(RooCategory&) – Prepare import of datasets into a N+1 dimensional RooDataSet where the extra discrete dimension labels the source of the imported histogram.

Import(const char*, – Import a dataset to be associated with the given state name of the index category RooDataSet&) specified in Index(). If the given state name is not yet defined in the index category it will be added on the fly. The import command can be specified multiple times.

Link(const char*, RooDataSet&) – Link contents of supplied RooDataSet to this dataset for given index category state name. In this mode, no data is copied and the linked dataset must be remain live for the duration of this dataset. Note that link is active for both reading and writing, so modifications to the aggregate dataset will also modify its components. Link() and Import() are mutually exclusive. OwnLinked() – Take ownership of all linked datasets

Import(map<string,RooDataSet*>&) – As above, but allows specification of many imports in a single operation Link(map<string,RooDataSet*>&) – As above, but allows specification of many links in a single operation

Cut(const char*) – Apply the given cut specification when importing data Cut(RooFormulaVar&)

CutRange(const char*) – Only accept events in the observable range with the given name

WeightVar(const char*) – Interpret the given variable as event weight rather than as observable WeightVar(const RooAbsArg&)

StoreError(const RooArgSet&) – Store symmetric error along with value for given subset of observables StoreAsymError(const RooArgSet&) – Store asymmetric error along with value for given subset of observables

Definition at line 235 of file RooDataSet.cxx.

RooDataSet::RooDataSet ( const char *  name,
const char *  title,
RooDataSet dset,
const RooArgSet vars,
const char *  cuts = 0,
const char *  wgtVarName = 0 
)

Constructor of a data set from (part of) an existing data set.

The dimensions of the data set are defined by the 'vars' RooArgSet, which can be identical to 'dset' dimensions, or a subset thereof. The 'cuts' string is an optional RooFormula expression and can be used to select the subset of the data points in 'dset' to be copied. The cut expression can refer to any variable in the source dataset. For cuts involving variables other than those contained in the source data set, such as intermediate formula objects, use the equivalent constructor accepting RooFormulaVar reference as cut specification

For most uses the RooAbsData::reduce() wrapper function, which uses this constructor, is the most convenient way to create a subset of an existing data

Definition at line 678 of file RooDataSet.cxx.

RooDataSet::RooDataSet ( const char *  name,
const char *  title,
RooDataSet dset,
const RooArgSet vars,
const RooFormulaVar cutVar,
const char *  wgtVarName = 0 
)

Constructor of a data set from (part of) an existing data set.

The dimensions of the data set are defined by the 'vars' RooArgSet, which can be identical to 'dset' dimensions, or a subset thereof. The 'cutVar' formula variable is used to select the subset of data points to be copied. For subsets without selection on the data points, or involving cuts operating exclusively and directly on the data set dimensions, the equivalent constructor with a string based cut expression is recommended.

For most uses the RooAbsData::reduce() wrapper function, which uses this constructor, is the most convenient way to create a subset of an existing data

Definition at line 717 of file RooDataSet.cxx.

RooDataSet::RooDataSet ( const char *  name,
const char *  title,
TTree intree,
const RooArgSet vars,
const char *  selExpr = 0,
const char *  wgtVarName = 0 
)

Constructor of a data set from (part of) an ROOT TTRee.

The dimensions of the data set are defined by the 'vars' RooArgSet. For each dimension specified, the TTree must have a branch with the same name. For category branches, this branch should contain the numeric index value. Real dimensions can be constructed from either 'Double_t' or 'Float_t' tree branches. In the latter case, an automatic conversion is applied.

The 'cuts' string is an optional RooFormula expression and can be used to select the subset of the data points in 'dset' to be copied. The cut expression can refer to any variable in the vars argset. For cuts involving variables other than those contained in the vars argset, such as intermediate formula objects, use the equivalent constructor accepting RooFormulaVar reference as cut specification

Definition at line 799 of file RooDataSet.cxx.

RooDataSet::RooDataSet ( const char *  name,
const char *  title,
TTree intree,
const RooArgSet vars,
const RooFormulaVar cutVar,
const char *  wgtVarName = 0 
)

Constructor of a data set from (part of) an ROOT TTRee.

The dimensions of the data set are defined by the 'vars' RooArgSet. For each dimension specified, the TTree must have a branch with the same name. For category branches, this branch should contain the numeric index value. Real dimensions can be constructed from either 'Double_t' or 'Float_t' tree branches. In the latter case, an automatic conversion is applied.

The 'cutVar' formula variable is used to select the subset of data points to be copied. For subsets without selection on the data points, or involving cuts operating exclusively and directly on the data set dimensions, the equivalent constructor with a string based cut expression is recommended.

Definition at line 757 of file RooDataSet.cxx.

RooDataSet::RooDataSet ( RooDataSet const &  other,
const char *  newname = 0 
)

Copy constructor.

Definition at line 829 of file RooDataSet.cxx.

RooDataSet::~RooDataSet ( )
virtual

Destructor.

Definition at line 969 of file RooDataSet.cxx.

RooDataSet::RooDataSet ( const char *  name,
const char *  title,
RooDataSet ntuple,
const RooArgSet vars,
const RooFormulaVar cutVar,
const char *  cutRange,
int  nStart,
int  nStop,
Bool_t  copyCache,
const char *  wgtVarName = 0 
)
protected

Protected constructor for internal use only.

Definition at line 840 of file RooDataSet.cxx.

Member Function Documentation

void RooDataSet::add ( const RooArgSet data,
Double_t  wgt = 1.0,
Double_t  wgtError = 0 
)
virtual
void RooDataSet::add ( const RooArgSet indata,
Double_t  inweight,
Double_t  weightErrorLo,
Double_t  weightErrorHi 
)
virtual

Add a data point, with its coordinates specified in the 'data' argset, to the data set.

Any variables present in 'data' but not in the dataset will be silently ignored

Definition at line 1183 of file RooDataSet.cxx.

RooAbsArg * RooDataSet::addColumn ( RooAbsArg var,
Bool_t  adjustRange = kTRUE 
)
virtual

Add a column with the values of the given (function) argument to this dataset.

The function value is calculated for each event using the observable values of each event in case the function depends on variables with names that are identical to the observable names in the dataset

Definition at line 1297 of file RooDataSet.cxx.

Referenced by RooMCStudy::calcPulls(), ClassImp(), RooFactoryWSTool::SpecialsIFace::create(), and RooStats::HLFactory::GetTotDataSet().

RooArgSet * RooDataSet::addColumns ( const RooArgList varList)
virtual

Add a column with the values of the given list of (function) argument to this dataset.

Each function value is calculated for each event using the observable values of the event in case the function depends on variables with names that are identical to the observable names in the dataset

Definition at line 1314 of file RooDataSet.cxx.

void RooDataSet::addFast ( const RooArgSet data,
Double_t  wgt = 1.0,
Double_t  wgtError = 0 
)
virtual

Add a data point, with its coordinates specified in the 'data' argset, to the data set.

Layout and size of input argument data is ASSUMED to be the same as RooArgSet returned RooDataSet::get()

Definition at line 1205 of file RooDataSet.cxx.

Referenced by RooStats::MarkovChain::AddFast(), and RooAbsGenContext::generate().

RooArgSet RooDataSet::addWgtVar ( const RooArgSet origVars,
const RooAbsArg wgtVar 
)
protected

Helper function for constructor that adds optional weight variable to construct total set of observables.

Definition at line 861 of file RooDataSet.cxx.

void RooDataSet::append ( RooDataSet data)

Add all data points of given data set to this data set.

Observable in 'data' that are not in this dataset with not be transferred

Definition at line 1282 of file RooDataSet.cxx.

Referenced by RooAbsStudy::aggregateSummaryOutput(), RooStats::HypoTestResult::Append(), ClassImp(), RooStats::HLFactory::GetTotDataSet(), and RooStats::ToyMCStudy::merge().

RooDataHist * RooDataSet::binnedClone ( const char *  newName = 0,
const char *  newTitle = 0 
) const

Return binned clone of this dataset.

Definition at line 980 of file RooDataSet.cxx.

Referenced by RooStats::MarkovChain::GetAsDataHist().

RooAbsData * RooDataSet::cacheClone ( const RooAbsArg newCacheOwner,
const RooArgSet newCacheVars,
const char *  newName = 0 
)
protectedvirtual

Return a clone of this dataset containing only the cached variables.

Implements RooAbsData.

Definition at line 873 of file RooDataSet.cxx.

void RooDataSet::cleanup ( )
staticprotected

Clear memoery pool on exit to avoid reported memory leaks.

Definition at line 81 of file RooDataSet.cxx.

virtual TObject* RooDataSet::Clone ( const char *  newname = 0) const
inlinevirtual

Make a clone of an object using the Streamer facility.

If newname is specified, this will be the name of the new object.

Reimplemented from TNamed.

Definition at line 64 of file RooDataSet.h.

Referenced by RooAbsStudy::aggregateSummaryOutput(), and RooStats::SPlot::SPlot().

TH2F * RooDataSet::createHistogram ( const RooAbsRealLValue var1,
const RooAbsRealLValue var2,
const char *  cuts = "",
const char *  name = "hist" 
) const

Create a TH2F histogram of the distribution of the specified variable using this dataset.

Apply any cuts to select which events are used. The variable being plotted can either be contained directly in this dataset, or else be a function of the variables in this dataset. The histogram will be created using RooAbsReal::createHistogram() with the name provided (with our dataset name prepended).

Definition at line 1333 of file RooDataSet.cxx.

Referenced by RooStats::HistFactory::HistFactoryNavigation::GetDataHist().

TH2F * RooDataSet::createHistogram ( const RooAbsRealLValue var1,
const RooAbsRealLValue var2,
Int_t  nx,
Int_t  ny,
const char *  cuts = "",
const char *  name = "hist" 
) const

Create a TH2F histogram of the distribution of the specified variable using this dataset.

Apply any cuts to select which events are used. The variable being plotted can either be contained directly in this dataset, or else be a function of the variables in this dataset. The histogram will be created using RooAbsReal::createHistogram() with the name provided (with our dataset name prepended).

Definition at line 1349 of file RooDataSet.cxx.

RooAbsData * RooDataSet::emptyClone ( const char *  newName = 0,
const char *  newTitle = 0,
const RooArgSet vars = 0,
const char *  wgtVarName = 0 
) const
virtual

Return an empty clone of this dataset.

If vars is not null, only the variables in vars are added to the definition of the empty clone

Implements RooAbsData.

Definition at line 891 of file RooDataSet.cxx.

const RooArgSet * RooDataSet::get ( Int_t  index) const
virtual

Return RooArgSet with coordinates of event 'index'.

Reimplemented from RooAbsData.

Definition at line 1042 of file RooDataSet.cxx.

Referenced by RooStats::SPlot::AddSWeight(), RooAbsNumGenerator::attachParameters(), RooMCStudy::calcPulls(), ClassImp(), RooStats::CreateBranchStore(), RooXYChi2Var::evaluatePartition(), RooStats::FillTree(), RooMCStudy::fitParams(), RooSimultaneous::genContext(), RooAbsGenContext::generate(), RooAcceptReject::generateEvent(), RooFoamGenerator::generateEvent(), RooSimultaneous::generateSimGlobal(), RooStats::MarkovChain::Get(), RooStats::ConfidenceBelt::GetAcceptanceRegion(), RooStats::MarkovChain::GetAsSparseHist(), RooStats::HypoTestCalculatorGeneric::GetHypoTest(), RooStats::SPlot::GetSumOfEventSWeight(), RooStats::SPlot::GetSWeight(), RooStats::SPlot::GetYieldFromSWeight(), RooStats::PointSetInterval::IsInInterval(), Roo2DKeysPdf::loadDataSet(), RooKeysPdf::LoadDataSet(), RooNDKeysPdf::loadDataSet(), RooNDKeysPdf::loadWeightSet(), RooAcceptReject::nextAcceptedEvent(), RooStats::MarkovChain::NLL(), RooAbsReal::plotOnWithErrorBand(), RooMCStudy::plotParam(), RooStats::PdfProposal::Propose(), RooAbsGenContext::RooAbsGenContext(), RooAbsNumGenerator::RooAbsNumGenerator(), RooAddGenContext::RooAddGenContext(), RooBinnedGenContext::RooBinnedGenContext(), RooConvGenContext::RooConvGenContext(), RooGenContext::RooGenContext(), RooMCStudy::RooMCStudy(), RooProdGenContext::RooProdGenContext(), RooSimGenContext::RooSimGenContext(), RooMCStudy::run(), RooStats::HybridCalculatorOriginal::RunToys(), and RooStats::MarkovChain::Weight().

const RooArgSet * RooDataSet::get ( ) const
virtual

Return a RooArgSet with the coordinates of the current event.

Reimplemented from RooAbsData.

Definition at line 1150 of file RooDataSet.cxx.

void RooDataSet::initialize ( const char *  wgtVarName)
protected

Initialize the dataset.

If wgtVarName is not null, interpret the observable with that name as event weight

Definition at line 920 of file RooDataSet.cxx.

Referenced by addColumn(), addColumns(), merge(), and RooDataSet().

Bool_t RooDataSet::isNonPoissonWeighted ( ) const
virtual

Returns true if histogram contains bins with entries with a non-integer weight.

Reimplemented from RooAbsData.

Definition at line 1128 of file RooDataSet.cxx.

Bool_t RooDataSet::isWeighted ( ) const
virtual

Return true if dataset contains weighted events.

Reimplemented from RooAbsData.

Definition at line 1118 of file RooDataSet.cxx.

Referenced by printValue(), and sumEntries().

Bool_t RooDataSet::merge ( RooDataSet data1,
RooDataSet data2 = 0,
RooDataSet data3 = 0,
RooDataSet data4 = 0,
RooDataSet data5 = 0,
RooDataSet data6 = 0 
)

Definition at line 1222 of file RooDataSet.cxx.

Referenced by RooStats::SPlot::AddSWeight(), and RooMCStudy::run().

Bool_t RooDataSet::merge ( std::list< RooDataSet * >  dsetList)

Merge columns of supplied data set(s) with this data set.

All data sets must have equal number of entries. In case of duplicate columns the column of the last dataset in the list prevails

Definition at line 1244 of file RooDataSet.cxx.

void RooDataSet::operator delete ( void ptr)
void* RooDataSet::operator new ( size_t  bytes)
RooPlot * RooDataSet::plotOnXY ( 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
virtual

Special plot method for 'X-Y' datasets used in Chi^2 fitting.

These datasets have one observable (X) and have weights (Y) and associated errors.

Contents options

YVar(RooRealVar& var) – Designate specified observable as 'y' variable If not specified, the event weight will be the y variable

Histogram drawing options

DrawOption(const char* opt) – Select ROOT draw option for resulting TGraph object LineStyle(Int_t style) – Select line style by ROOT line style code, default is solid LineColor(Int_t color) – Select line color by ROOT color code, default is black LineWidth(Int_t width) – Select line with in pixels, default is 3 MarkerStyle(Int_t style) – Select the ROOT marker style, default is 21 MarkerColor(Int_t color) – Select the ROOT marker color, default is black MarkerSize(Double_t size) – Select the ROOT marker size Rescale(Double_t factor) – Apply global rescaling factor to histogram

Misc. other options

Name(const chat* name) – Give curve specified name in frame. Useful if curve is to be referenced later Invisible(Bool_t flag) – Add curve to frame, but do not display. Useful in combination AddTo()

Definition at line 1464 of file RooDataSet.cxx.

void RooDataSet::printArgs ( std::ostream &  os) const
virtual

Print argument of dataset, i.e. the observable names.

Reimplemented from RooPrintable.

Definition at line 1877 of file RooDataSet.cxx.

void RooDataSet::printMultiline ( std::ostream &  os,
Int_t  contents,
Bool_t  verbose = kFALSE,
TString  indent = "" 
) const
virtual

Print info about this dataset to the specified output stream.

Standard: number of entries Shape: list of variables we define & were generated with

Reimplemented from RooAbsData.

Definition at line 1851 of file RooDataSet.cxx.

void RooDataSet::printValue ( std::ostream &  os) const
virtual

Print value of the dataset, i.e. the sum of weights contained in the dataset.

Reimplemented from RooPrintable.

Definition at line 1864 of file RooDataSet.cxx.

RooDataSet * RooDataSet::read ( const char *  fileList,
const RooArgList varList,
const char *  verbOpt = "",
const char *  commonPath = "",
const char *  indexCatName = 0 
)
static

Read given list of ascii files, and construct a data set, using the given ArgList as structure definition.

Multiple file names in fileList should be comma separated. Each file is optionally prefixed with 'commonPath' if such a path is provided

The arglist specifies the dimensions of the dataset to be built and describes the order in which these dimensions appear in the ascii files to be read.

Each line in the ascii file should contain N white space separated tokens, with N the number of args in 'variables'. Any text beyond N tokens will be ignored with a warning message. [ NB: This format is written by RooArgList::writeToStream() ]

If the value of any of the variables on a given line exceeds the fit range associated with that dimension, the entire line will be ignored. A warning message is printed in each case, unless the 'Q' verbose option is given. (Option 'D' will provide additional debugging information) The number of events read and skipped is always summarized at the end.

When multiple files are read, a RooCategory arg in 'variables' can optionally be designated to hold information about the source file of each data point. This feature is enabled by giving the name of the (already existing) category variable in 'indexCatName'

If no further information is given a label name 'fileNNN' will be assigned to each event, where NNN is the sequential number of the source file in 'fileList'.

Alternatively it is possible to override the default label names of the index category by specifying them in the fileList string: When instead of "file1.txt,file2.txt" the string "file1.txt:FOO,file2.txt:BAR" is specified, a state named "FOO" is assigned to the index category for each event originating from file1.txt. The labels FOO,BAR may be predefined in the index category via defineType(), but don't have to be

Finally, one can also assign the same label to multiple files, either by specifying "file1.txt:FOO,file2,txt:FOO,file3.txt:BAR" or "file1.txt,file2.txt:FOO,file3.txt:BAR"

Definition at line 1624 of file RooDataSet.cxx.

Referenced by RooMCStudy::run().

RooAbsData * RooDataSet::reduceEng ( const RooArgSet varSubset,
const RooFormulaVar cutVar,
const char *  cutRange = 0,
Int_t  nStart = 0,
Int_t  nStop = 2000000000,
Bool_t  copyCache = kTRUE 
)
protectedvirtual

Implementation of RooAbsData virtual method that drives the RooAbsData::reduce() methods.

Implements RooAbsData.

Definition at line 945 of file RooDataSet.cxx.

void RooDataSet::SetName ( const char *  name)
virtual

Change the name of this dataset into the given name.

Reimplemented from TNamed.

Definition at line 1903 of file RooDataSet.cxx.

Referenced by RooStudyPackage::exportData(), and RooAbsPdf::generate().

void RooDataSet::SetNameTitle ( const char *  name,
const char *  title 
)
virtual

Change the title of this dataset into the given name.

Reimplemented from TNamed.

Definition at line 1914 of file RooDataSet.cxx.

Referenced by RooStats::DetailedOutputAggregator::GetAsDataSet().

Double_t RooDataSet::sumEntries ( ) const
virtual
Double_t RooDataSet::sumEntries ( const char *  cutSpec,
const char *  cutRange = 0 
) const
virtual

Return the sum of weights in all entries matching cutSpec (if specified) and in named range cutRange (if specified)

Implements RooAbsData.

Definition at line 1081 of file RooDataSet.cxx.

Double_t RooDataSet::weight ( ) const
virtual
void RooDataSet::weightError ( Double_t lo,
Double_t hi,
ErrorType  etype = SumW2 
) const
virtual

Return asymmetric error on weight. (Dummy implementation returning zero)

Reimplemented from RooAbsData.

Definition at line 1023 of file RooDataSet.cxx.

Referenced by RooXYChi2Var::evaluatePartition(), and plotOnXY().

Double_t RooDataSet::weightError ( ErrorType  etype = SumW2) const
virtual

Return error on current weight (dummy implementation returning zero)

Reimplemented from RooAbsData.

Definition at line 1032 of file RooDataSet.cxx.

Double_t RooDataSet::weightSquared ( ) const
virtual

Return event weight of current event.

Implements RooAbsData.

Definition at line 1013 of file RooDataSet.cxx.

Bool_t RooDataSet::write ( const char *  filename)

Write the contents of this dataset to an ASCII file with the specified name Each event will be written as a single line containing the written values of each observable in the order they were declared in the dataset and separated by whitespaces.

Definition at line 1818 of file RooDataSet.cxx.

Referenced by RooMCStudy::run().

Friends And Related Function Documentation

friend class RooProdGenContext
friend

Definition at line 136 of file RooDataSet.h.

Member Data Documentation

char * RooDataSet::_poolBegin = 0
staticprotected

Definition at line 152 of file RooDataSet.h.

char * RooDataSet::_poolCur = 0
staticprotected

Start of memory pool.

Definition at line 153 of file RooDataSet.h.

char * RooDataSet::_poolEnd = 0
staticprotected

Next free slot in memory pool.

Definition at line 154 of file RooDataSet.h.

RooArgSet RooDataSet::_varsNoWgt
protected

Definition at line 148 of file RooDataSet.h.

Referenced by add(), addFast(), get(), initialize(), and printArgs().

RooRealVar* RooDataSet::_wgtVar
protected

The documentation for this class was generated from the following files: