EventTrees Class Reference

Base class for an analysis that produces trees with per-event entries. More...

#include <EventTrees.h>

Inheritance diagram for EventTrees:

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Collaboration diagram for EventTrees:

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List of all members.

Public Member Functions
	EventTrees (Options const &options, Dataset &dataset, std::string const treeName="Vars")
	Contructor.
void	CreateWeightBranches ()
	If the file is simulations, create the branch with weights.
void	PostProcessing ()
	Writes the output file.
Protected Member Functions
template<typename... Args>
void	AddBranch (Args...args)
	Adds a new branch to the underlying tree.
void	FillTree ()
	Fills the underlying tree.
Private Attributes
bool	storeWeightSyst_
	Indicates whether variations in event weights should be stored.
TFile	outputFile_
	Output file.
TTree *	tree_
	Non-owning pointer to the output tree.
Float_t	weight_
	Buffer to save the nominal event weight.
std::vector< Float_t >	systWeights_
	Buffers to save alternative event weights.

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Detailed Description

Base class for an analysis that produces trees with per-event entries.

Derived class must create branches in the output tree using method AddBranch. For each event the tree is filled by calling FillTree, which also sets event weights.

Normally only the default event weight is saved. If the command line option --syst=weights is provided, nominal weight as well as weights for all registered weight-based systematic variations are stored. The latter ones are saved as full as opposed to relative weights.

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Constructor & Destructor Documentation

EventTrees::EventTrees	(	Options const &	options,
		Dataset &	dataset,
		std::string const	treeName = "Vars"
	)

Contructor.

Argument treeName specifies the name for the tree that will be produced.

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Member Function Documentation

void EventTrees::FillTree

(

)

[protected]

Fills the underlying tree.

Event weights are set automatically.

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Member Data Documentation

std::vector<Float_t> EventTrees::systWeights_ [private]

Buffers to save alternative event weights.

These are full weights, i.e. they are not relative with respect to the nominal one.

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

• include/EventTrees.h
• src/EventTrees.cc