rarBinned Class Reference

RhhBinned PDF builder. More...

#include <rarBinned.hh>

Inheritance diagram for rarBinned:

List of all members.

Public Member Functions
	rarBinned ()
	Trivial ctor.
	rarBinned (const char *configFile, const char *configSec, const char *configStr, rarDatasets *theDatasets, RooDataSet *theData, const char *name, const char *title)
	Default ctor.
virtual	~rarBinned ()
Protected Member Functions
void	init ()
	Initial function called by ctor.
Protected Attributes
RooAbsReal *	_x
	Default obs.
Int_t	_nBins
	Number of bins.
TArrayD *	_limits
	Limits of those bins.
Private Member Functions
	rarBinned (const rarBinned &)
	ClassDef (rarBinned, 0)

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Detailed Description

RhhBinned PDF builder.

Build Pdf.

Config Directives:

/// configStr = Binned ["<Optional Title>"]
/// x = AbsReal Def
/// nBins = <binVal>
/// limits = <<binVal>+1 points>
/// H00 = AbsReal Def
/// ...
/// H<binVal-1> = AbsReal Def

x is the default observable. nBins is the number of bins of the binned function. limits is a set of <binVal>+1 Double_t's setting the bounds of those bins. H00 ... H<binVal-1> are <binVal>-1 free parameters of the binned function. All the AbsReal variables can be RooRealVar or RooFormulaVar.

Definition at line 40 of file rarBinned.hh.

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Constructor & Destructor Documentation

rarBinned::rarBinned

(

)

Trivial ctor.

Usually the objects should be created using other ctors.

Definition at line 40 of file rarBinned.cc.

References init().

  : rarBasePdf(),
    _x(0), _nBins(0), _limits(0)
{
  init();
}

rarBinned::rarBinned	(	const char *	configFile,
		const char *	configSec,
		const char *	configStr,
		rarDatasets *	theDatasets,
		RooDataSet *	theData,
		const char *	name,
		const char *	title
	)

Default ctor.

Parameters:

	configFile	The config file
	configSec	The config section
	configStr	The config string
	theDatasets	Available datasets
	theData	Default dataset for this PDF
	name	The name
	title	The title

The default ctor first initializes data members, and then calls init.

Definition at line 59 of file rarBinned.cc.

References init().

  : rarBasePdf(configFile, configSec, configStr,
               theDatasets, theData, name, title),
    _x(0), _nBins(0), _limits(0)
{
  init();
}

rarBinned::~rarBinned

(

)

[virtual]

Definition at line 69 of file rarBinned.cc.

{
}

rarBinned::rarBinned

(

const rarBinned &

)

[private]

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Member Function Documentation

rarBinned::ClassDef	(	rarBinned	,
		0
	)			[private]

void rarBinned::init

(

)

[protected, virtual]

Initial function called by ctor.

init is called by the ctor. It first reads in _nBins and _limits info from its param config section, and creates H00 ... H<nBins-1> parameters by calling createAbsReal, and finally it builds Binned PDF.

Reimplemented from rarBasePdf.

Definition at line 80 of file rarBinned.cc.

References rarBasePdf::_coeffs, _limits, _nBins, rarBasePdf::_obsSet, rarBasePdf::_params, rarBasePdf::_pdfType, rarBasePdf::_thePdf, _x, rarConfig::createAbsReal(), rarBasePdf::getVarSec(), rarStrParser::nArgs(), and rarConfig::readConfStr().

Referenced by rarBinned().

{
  cout<<"init of rarBinned for "<<GetName()<<":"<<endl;
  
  // first get its dependent/observable
  _x=createAbsReal("x", "observable"); assert(_x);
  RooRealVar *x=(RooRealVar *)RooArgList(_obsSet).at(0); assert(x);
  // Config pdf params
  _nBins=atoi(readConfStr("nBins", "0", getVarSec()));
  if (_nBins<=0) _nBins= // from plotBins
    atoi(readConfStr(Form("plotBins_%s", x->GetName()),"0", getVarSec()));
  if (_nBins<=0) _nBins=x->getBins(); // get bins from its obs
  _limits= new TArrayD(_nBins+1);
  // read in limit info
  TString limitStr=readConfStr("limits", "", getVarSec());
  rarStrParser limitStrParser=limitStr;
  Int_t nLimits=limitStrParser.nArgs();
  if (_nBins+1==nLimits) {
    for (Int_t i=0; i<_nBins+1; i++) {
      (*_limits)[i]=atof(limitStrParser[i]);
    }
  } else { // set equal interval
    Double_t binned=(x->getMax() - x->getMin())/_nBins;
    for (Int_t i=0; i<_nBins+1; i++) {
      (*_limits)[i]=x->getMin()+i*binned;
    }
  }
  // set lo and hi limits
  //(*_limits)[0]=x->getMin();
  //(*_limits)[_nBins]=x->getMax();
  // read in coeffs
  for (Int_t i=0; i<_nBins-1; i++) {
    RooAbsReal *H=createAbsReal(Form("H%02d",i),Form("h_{%d}", i),.1,0,1000);
    _coeffs.add(*H);
  }
  _params.Print("v");
  
  // create pdf
  _thePdf=
    new RooBinnedPdf(Form("the_%s", GetName()),
                     _pdfType+" "+GetTitle(),
                     *_x, _coeffs, *_limits);
}

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Member Data Documentation

TArrayD* rarBinned::_limits [protected]

Limits of those bins.

Definition at line 54 of file rarBinned.hh.

Referenced by init().

Int_t rarBinned::_nBins [protected]

Number of bins.

Definition at line 53 of file rarBinned.hh.

Referenced by init().

RooAbsReal* rarBinned::_x [protected]

Default obs.

Definition at line 52 of file rarBinned.hh.

Referenced by init().

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

• rarBinned.hh
• rarBinned.cc

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