CutFlow Class Reference

#include <CutFlow.h>

Inheritance diagram for CutFlow:

[legend]Collaboration diagram for CutFlow:

[legend]List of all members.

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Detailed Description

Class that returns the value of a cut depending on an iterator.

The purpose of a CutFlow object is to return the value of a cut whose number is given by an IntFun object (which will normally be a FillIterator). A CutFlow object will normally be used in conjuntion with a RangeIterator to generate a histogram that shows how the number of events evolves when different cuts are applied.

Here is an example how a CutFlow object can be used:

 enum{NCUTS = 3};
 const BaseCut *cutflow[NCUTS];
 const char *cuttitles[NCUTS];
 cutflow[0] = 0;
 cutflow[1] = &(ncentral == 4);
 cutflow[2] = &(*cutflow[1] && nnonvertex == 4);
 
 cuttitles[0] = "No cuts";
 cuttitles[1] = "4 central tracks";
 cuttitles[2] = "... and only 4 nonvertex tracks";
 
 BinningFun& cutflowbinning = *new CutBinning  (NCUTS, cutflow, cuttitles, "cut");
 FillIterator& cutiter = *new RangeIterator (0, NCUTS-1, "cutnumber");
 BaseCut& cutflowcut = *new CutFlow  (NCUTS, cutflow, cutiter, "cutflow");

 h_cutflow        = new SFH1F ("cutflow", "Cut Flow (Events after L4)", cutflowbinning,
                               this, Float(cutiter), cutflowcut);

Author: Benno List, Jenny List

Date

2005/07/20 10:56:41

Author

blist

Changelog:

• 13.6.05 BL: First version
• 20.7.05 BL: Added constructors for pointers to non-const BaseCut

Definition at line 58 of file CutFlow.h.

Public Member Functions
	CutFlow (int nbins, const BaseCut *cuts[], const IntFunPoR &iter_, const char *name=0)
	Create a CutFlow from an array of pointers to cuts.
	CutFlow (int nbins, BaseCut *cuts[], const IntFunPoR &iter_, const char *name=0)
	Create a CutFlow from an array of pointers to cuts.
virtual bool	operator() () const
	Returns the value of the cut with the number given by the iterator.
virtual const FillIterator *	getIterator () const
	Returns pointer to iterator, if any.
Protected Member Functions
virtual	~CutFlow ()
	Protected destructor to ensure creation on the heap.
Private Attributes
std::vector< const BaseCut * >	theCuts
const IntFun *	iter

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Constructor & Destructor Documentation

CutFlow::CutFlow (  int  nbins, const BaseCut *  cuts[], const IntFunPoR &  iter_, const char *  name = 0 )

Create a CutFlow from an array of pointers to cuts. Parameters: nbins  The number of bins cuts  The cuts iter_  The Iterator name  The object name Definition at line 28 of file CutFlow.C. References NamedO::getName().

CutFlow::CutFlow (  int  nbins, BaseCut *  cuts[], const IntFunPoR &  iter_, const char *  name = 0 )

Create a CutFlow from an array of pointers to cuts. Parameters: nbins  The number of bins cuts  The cuts iter_  The Iterator name  The object name Definition at line 43 of file CutFlow.C. References NamedO::getName().

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

• CutFlow.h
• CutFlow.C

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