#include <Weights.h>

Inheritance diagram for WeightsMerging:

Public Member Functions
void	init () override
	Initialize weights (more can be booked at any time) More...

void	clear () override
	Reset all internal values;. More...

void	bookWeight (string name, double value, double valueFirst)
	Function to create a new, synchronized, pair of weight name and value.

void	bookVectors (vector< double > weights, vector< string > names) override
	Store the current event information.

void	bookVectors (vector< double > weights, vector< double > weightsFirst, vector< string > names)

double	getWeightsValue (int iPos) const override
	Modified weight getter to include first order weight.

double	getWeightsValueP (int iPos) const
	Also add getters for UNLOPS-P and -PC schemes.

double	getWeightsValuePC (int iPos) const

void	reweightValueByIndex (int iPos, double val) override
	Functions to set values of weights. More...

void	reweightValueByName (string name, double val) override

void	setValueFirstByIndex (int iPos, double val)
	Functions to set values of first order weights. More...

void	setValueFirstByName (string name, double val)

void	setValueVector (vector< double > ValueVector)
	Functions to set values as whole vector. More...

void	setValueFirstVector (vector< double > ValueFirstVector)
	Set first order weight values as vector.

vector< double >	getMuRVarFactors ()
	Function telling merging which muR variations to perform. More...

void	setLHEFvariationMapping ()
	Set up mapping between LHEF variations. More...

void	collectWeightNames (vector< string > &outputNames) override
	Function to collect weight names. More...

void	collectWeightValues (vector< double > &outputWeights, double norm=1.) override
	Function collecting weight values. More...

Public Member Functions inherited from WeightsBase
virtual void	init (bool)

string	getWeightsName (int iPos) const

int	getWeightsSize () const

void	bookWeight (string name, double defaultValue=1.)
	Function to create a new, synchronized, pair of weight name and value. More...

void	setValueByIndex (int iPos, double val)
	Functions to set values of weights.

void	setValueByName (string name, double val)

int	findIndexOfName (string name)

void	setPtrs (Info *infoPtrIn)
	Set the pointers.

Protected Attributes
map< int, int >	muRVarLHEFindex
	Corresponding vector with respective LHEF weight indices.

vector< double >	weightValuesFirst
	Data member for first order weight.

vector< double >	weightValuesP
	Data members for UNLOPS-P and -PC.

vector< double >	weightValuesPC

vector< double >	weightValuesFirstP

vector< double >	weightValuesFirstPC

bool	isNLO
	Boolean to memorize if LHEF weight needs to be applied (only for NLO).

Protected Attributes inherited from WeightsBase
vector< double >	weightValues
	Weight values and names.

vector< string >	weightNames

Info *	infoPtr {}
	Pointers necessary for variation initialization.

Friends
class	Merging
	Friends for internal protected members.

class	WeightContainer

Additional Inherited Members
Protected Member Functions inherited from WeightsBase
void	parse (string wvecKey, map< string, map< string, double > > &dct)
	Parse a WVec of variations into a dictionary. More...

Detailed Description

This class collects information on weights generated in the merging framework. The first weight is always required for CKKW-L, UMEPS and NLO merging. The additional weights are required for simultaneous renormalization scale variation in matrix element generation and parton shower.

Member Function Documentation

void bookVectors	(	vector< double >	weights,
		vector< double >	weightsFirst,
		vector< string >	names
	)

Store the current event information, including first order weights for NLO merging.

void clear ( )

overridevirtual

Reset all internal values;.

WeightsMerging class.

Reset all internal values.

Reimplemented from WeightsBase.

void collectWeightNames ( vector< string > & outputNames )

overridevirtual

Function to collect weight names.

Similar function to return processed weight names.

Include scheme variation names if present

Reimplemented from WeightsBase.

void collectWeightValues	(	vector< double > &	outputWeights,
		double	norm = `1.`
	)

overridevirtual

Function collecting weight values.

Function to return processed weights to weight container.

Combine with corresponding LHE variation

Check if corresponding muR variation is available

Combine with corresponding shower weight

Include scheme variation weights if present

Normalize with UNLOPS-1 central merging weight, since that is collected into the nominal weight.

Combine with corresponding LHE variation

Check if corresponding muR variation is available

Combine with corresponding shower weight

Done.

Reimplemented from WeightsBase.

vector< double > getMuRVarFactors ( )

Function telling merging which muR variations to perform.

Function telling merging which muR variations to perform, read from Merging:muRfactors setting.

void init ( )

overridevirtual

Initialize weights (more can be booked at any time)

Initialize merging weights.

Reset weight vectors

Initialization of all required variation weights done in MergingHooks.cc

Reimplemented from WeightsBase.

void reweightValueByIndex	(	int	iPos,
		double	val
	)

overridevirtual

Functions to set values of weights.

Functions to set values of weights. Does not apply to first order weights or scheme variation weights.

Reimplemented from WeightsBase.

void reweightValueByName	(	string	name,
		double	val
	)

overridevirtual

Reweigth merging weights by name. Does not apply to first order weights or scheme variation weights.

Reimplemented from WeightsBase.

void setLHEFvariationMapping ( )

Set up mapping between LHEF variations.

Set up mapping between LHEF variations and weights.

void setValueFirstByIndex	(	int	iPos,
		double	val
	)

Functions to set values of first order weights.

Functions to set values of first order weights. Does not apply to scheme variation weights.

void setValueFirstByName	(	string	name,
		double	val
	)

Set values of first order weights by name. Does not apply to scheme variation weights.

void setValueVector ( vector< double > ValueVector )

Functions to set values as whole vector.

Set values as whole vector.

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

include/Pythia8/Weights.h
src/Weights.cc

Public Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation