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Laura++  v2r0
A maximum likelihood fitting package for performing Dalitz-plot analysis.
LauChebychevPdf Class Reference

Class for defining a Chebychev Polynomial (1st kind) PDF. More...

#include <LauChebychevPdf.hh>

Inheritance diagram for LauChebychevPdf:
LauAbsPdf

Public Member Functions

 LauChebychevPdf (const TString &theVarName, const std::vector< LauParameter * > &params, Double_t minAbscissa, Double_t maxAbscissa)
 Constructor. More...
 
virtual ~LauChebychevPdf ()
 Destructor. More...
 
 LauChebychevPdf (const LauChebychevPdf &other)
 Copy constructor. More...
 
virtual void calcLikelihoodInfo (const LauAbscissas &abscissas)
 Calculate the likelihood (and intermediate info) for a given abscissa. More...
 
virtual void checkPositiveness ()
 Check that PDF is positive. More...
 
virtual void calcNorm ()
 Calculate the normalisation. More...
 
virtual void calcPDFHeight (const LauKinematics *kinematics)
 Calculate the PDF height. More...
 
- Public Member Functions inherited from LauAbsPdf
 LauAbsPdf (const TString &theVarName, const std::vector< LauParameter * > &params, Double_t minAbscissa, Double_t maxAbscissa)
 Constructor for a 1D PDF. More...
 
 LauAbsPdf (const std::vector< TString > &theVarNames, const std::vector< LauParameter * > &params, const LauFitData &minAbscissas, const LauFitData &maxAbscissas)
 Constructor for a multidimensional PDF. More...
 
virtual ~LauAbsPdf ()
 Destructor. More...
 
virtual const TString & varName () const
 Retrieve the name of the abscissa. More...
 
virtual std::vector< TString > varNames () const
 Retrieve the names of the abscissas. More...
 
virtual UInt_t nParameters () const
 Retrieve the number of PDF parameters. More...
 
virtual UInt_t nFixedParameters () const
 Retrieve the number of fixed PDF parameters. More...
 
virtual UInt_t nInputVars () const
 Retrieve the number of abscissas. More...
 
virtual Bool_t isDPDependent () const
 Specifies whether or not the PDF is DP dependent. More...
 
virtual Double_t getParValue (const TString &parName) const
 Retrieve the value of the specified parameter. More...
 
virtual Double_t getParMin (const TString &parName) const
 Retrieve the minimum value of the specified parameter. More...
 
virtual Double_t getParMax (const TString &parName) const
 Retrieve the maximum value of the specified parameter. More...
 
virtual Double_t getParRange (const TString &parName) const
 Retrieve the range of the specified parameter. More...
 
virtual Bool_t parFixed (const TString &parName) const
 Retrieve whether the specified parameter is fixed. More...
 
virtual Bool_t parClone (const TString &parName) const
 Retrieve whether the specified parameter is a clone. More...
 
virtual Double_t getMinAbscissa () const
 Retrieve the minimum value of the (primary) abscissa. More...
 
virtual Double_t getMaxAbscissa () const
 Retrieve the maximum value of the (primary) abscissa. More...
 
virtual Double_t getRange () const
 Retrieve the range of the (primary) abscissa. More...
 
virtual Double_t getMinAbscissa (const TString &theVarName) const
 Retrieve the minimum value of the specified abscissa. More...
 
virtual Double_t getMaxAbscissa (const TString &theVarName) const
 Retrieve the maximum value of the specified abscissa. More...
 
virtual Double_t getRange (const TString &theVarName) const
 Retrieve the range of the specified abscissa. More...
 
virtual LauFitData getMinAbscissas () const
 Retrieve the minimum values of all the abscissas. More...
 
virtual LauFitData getMaxAbscissas () const
 Retrieve the maximum values of all the abscissas. More...
 
virtual LauFitData getRanges () const
 Retrieve the ranges of all the abscissas. More...
 
virtual void setParValue (const TString &parName, Double_t value)
 Change the value of the specified parameter. More...
 
virtual void setParMin (const TString &parName, Double_t minValue)
 Change the minimum value of the specified parameter. More...
 
virtual void setParMax (const TString &parName, Double_t maxValue)
 Change the maximum value of the specified parameter. More...
 
virtual void setParRange (const TString &parName, Double_t minValue, Double_t maxValue)
 Change the range of the specified parameter. More...
 
virtual void fixPar (const TString &parName)
 Fix the specified parameter. More...
 
virtual void floatPar (const TString &parName)
 Float the specified parameter. More...
 
virtual void updatePulls ()
 Update the pulls for all parameters. More...
 
virtual void cacheInfo (const LauFitDataTree &inputData)
 Cache information from data. More...
 
virtual void calcLikelihoodInfo (UInt_t iEvt)
 Retrieve the likelihood (and all associated information) given the event number. More...
 
virtual Double_t getUnNormLikelihood () const
 Retrieve the unnormalised likelihood value. More...
 
virtual Double_t getNorm () const
 Retrieve the normalisation factor. More...
 
virtual Double_t getLikelihood () const
 Retrieve the normalised likelihood value. More...
 
virtual Double_t getLikelihood (const TString &theVarName) const
 For multidimentional PDFs, retrieve the normalised likelihood value of a named variable. More...
 
virtual Double_t getMaxHeight () const
 Retrieve the maximum height. More...
 
virtual LauFitData generate (const LauKinematics *kinematics)
 Generate an event from the PDF. More...
 
virtual void setRandomFun (TRandom *randomFun)
 Set the random function used for toy MC generation. More...
 
virtual const std::vector
< LauParameter * > & 
getParameters () const
 Retrieve the parameters of the PDF, e.g. so that they can be loaded into a fit. More...
 
virtual std::vector
< LauParameter * > & 
getParameters ()
 Retrieve the parameters of the PDF, e.g. so that they can be loaded into a fit. More...
 
virtual Bool_t heightUpToDate () const
 Check if the maximum height of the PDF is up to date. More...
 
virtual Bool_t cachePDF () const
 Check if the PDF is to be cached. More...
 
virtual Int_t nNormPoints () const
 Retrieve the number of points to integrate over when normalising. More...
 
virtual void nNormPoints (Int_t nPoints)
 Set the number of points to integrate over when normalising. More...
 
virtual IntMethod integMethod () const
 Retrieve the integration method used to normalise the PDF. More...
 
virtual void integMethod (IntMethod method)
 Set the integration method used to normalise the PDF. More...
 

Private Attributes

std::vector< LauParameter * > coeffs_
 Coefficients of polynomial. More...
 

Additional Inherited Members

- Public Types inherited from LauAbsPdf
enum  IntMethod { GaussLegendre, Trapezoid }
 The possible numerical intergration methods. More...
 
typedef std::vector< Double_t > LauAbscissas
 The type used for containing multiple abscissa values. More...
 
- Protected Member Functions inherited from LauAbsPdf
virtual void cachePDF (Bool_t doCachePDF)
 Set whether the PDF is to be cached. More...
 
virtual void heightUpToDate (Bool_t hutd)
 Set whether the height is up to date. More...
 
virtual Double_t integrGaussLegendre ()
 Integrate the PDF using the Gauss-Legendre method. More...
 
virtual Double_t integTrapezoid ()
 Integrate the PDF using the simple trapezoid method. More...
 
virtual void setNorm (Double_t norm)
 Set the normalisation factor. More...
 
virtual void setMaxHeight (Double_t maxHeight)
 Set the maximum height. More...
 
virtual void setMinAbscissa (const TString &theVarName, Double_t minAbscissa)
 Set the minimum value of the specified abscissa. More...
 
virtual void setMaxAbscissa (const TString &theVarName, Double_t maxAbscissa)
 Set the maximum value of the specified abscissa. More...
 
virtual void setRange (const TString &theVarName, Double_t minAbscissa, Double_t maxAbscissa)
 Set the range of the specified abscissa. More...
 
virtual Bool_t checkRange (const LauAbscissas &abscissas) const
 Check that all abscissas are within their allowed ranges. More...
 
virtual void setUnNormPDFVal (Double_t unNormPDFVal)
 Set the unnormalised likelihood. More...
 
virtual LauParameterfindParameter (const TString &parName)
 Retrieve the specified parameter. More...
 
virtual const LauParameterfindParameter (const TString &parName) const
 Retrieve the specified parameter. More...
 
virtual TRandom * getRandomFun () const
 Retrieve the random function used for MC generation. More...
 
virtual std::vector
< LauAbscissas > & 
getAbscissas ()
 Retrieve the abscissa(s) More...
 
virtual const std::vector
< LauAbscissas > & 
getAbscissas () const
 Retrieve the abscissa(s) More...
 
virtual std::vector< Double_t > & getUnNormPDFValues ()
 Retrieve the cached unnormalised likelihood values. More...
 
virtual const std::vector
< Double_t > & 
getUnNormPDFValues () const
 Retrieve the cached unnormalised likelihood values. More...
 
virtual void addParameters (std::vector< LauParameter * > &params)
 Add parameters to the PDF. More...
 
virtual Bool_t withinNormCalc () const
 Check whether the calcNorm method is running. More...
 
virtual void withinNormCalc (Bool_t yorn)
 Set flag to track whether the calcNorm method is running. More...
 
virtual Bool_t withinGeneration () const
 Check whether the generate method is running. More...
 
virtual void withinGeneration (Bool_t yorn)
 Set flag to track whether the generate method is running. More...
 
virtual Bool_t normWeightsDone () const
 Check whether the normalisation weights have been calculated. More...
 
virtual void normWeightsDone (Bool_t yorn)
 Set whether the normalisation weights have been calculated. More...
 
virtual void getNormWeights ()
 Calculate the weights and abscissas used for normalisation. More...
 
virtual const std::vector
< LauAbscissas > & 
normAbscissas () const
 Retrieve the abscissa points used for normalisation. More...
 
virtual const std::vector
< Double_t > & 
normWeights () const
 Retrieve the weights used for normalisation. More...
 

Detailed Description

Class for defining a Chebychev Polynomial (1st kind) PDF.

Class that allows the user to define a Chebychev Polynomial (1st kind) PDF. The guts of the implementation are from Gerhard Raven's RooFit class.

Definition at line 49 of file LauChebychevPdf.hh.

Constructor & Destructor Documentation

LauChebychevPdf::LauChebychevPdf ( const TString &  theVarName,
const std::vector< LauParameter * > &  params,
Double_t  minAbscissa,
Double_t  maxAbscissa 
)

Constructor.

Parameters
[in]theVarNamethe name of the abscissa variable
[in]paramsthe PDF parameters - the polynomial coefficients (polynomial can be anything from 0 to 7 orders).
[in]minAbscissathe minimum value of the abscissa
[in]maxAbscissathe maximum value of the abscissa

Definition at line 41 of file LauChebychevPdf.cc.

LauChebychevPdf::~LauChebychevPdf ( )
virtual

Destructor.

Definition at line 67 of file LauChebychevPdf.cc.

LauChebychevPdf::LauChebychevPdf ( const LauChebychevPdf other)

Copy constructor.

Definition at line 72 of file LauChebychevPdf.cc.

Member Function Documentation

void LauChebychevPdf::calcLikelihoodInfo ( const LauAbscissas abscissas)
virtual

Calculate the likelihood (and intermediate info) for a given abscissa.

Parameters
[in]abscissasthe values of the abscissa(s)

Implements LauAbsPdf.

Definition at line 85 of file LauChebychevPdf.cc.

void LauChebychevPdf::calcNorm ( )
virtual

Calculate the normalisation.

Reimplemented from LauAbsPdf.

Definition at line 120 of file LauChebychevPdf.cc.

void LauChebychevPdf::calcPDFHeight ( const LauKinematics kinematics)
virtual

Calculate the PDF height.

Parameters
[in]kinematicsthe current DP kinematics

Implements LauAbsPdf.

Definition at line 137 of file LauChebychevPdf.cc.

void LauChebychevPdf::checkPositiveness ( )
virtual

Check that PDF is positive.

Implements LauAbsPdf.

Definition at line 172 of file LauChebychevPdf.cc.

Member Data Documentation

std::vector<LauParameter*> LauChebychevPdf::coeffs_
private

Coefficients of polynomial.

Definition at line 89 of file LauChebychevPdf.hh.


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