View of /groups/PROOF/ProofNtupleAnalysis/README

## Recipe for Running a PROOF Ntuple Analysis
## Author: Stephanie Majewski majewski@bnl.gov

 One-Time Setup
================

setenv CVSROOT /afs/usatlas.bnl.gov/software/cvs 	# Setup CVSROOT at BNL

cvs co -d PROOF groups/PROOF 				# Check out the PROOF package	

cd PROOF/ProofNtupleAnalysis 

source SetupROOTforPROOF.csh 				# Setup ROOTSYS variables (default is 5.20.00)
							# You must do this every time you open a new terminal

root <path/to/rootfilename.root>			# Run ROOT on one of your data files

[ROOT] CollectionTree->MakeSelector() 			# Create individual CollectionTree.C, Collection Tree.h 
							# files that match the structure of your tree
							# Analagous to "MakeClass()"
							# Change "CollectionTree" to the name of your tree if it
							# is different
							# Redo this if your tree structure changes

[ROOT] .q			 			# Quit ROOT

./makeParFile	 					# Create the .par (PROOF Archive) file; edit treeName if 
							# your tree has a different name

							# Edit run-mySelector.C; customize "chain->Add()" commands
							# Rerun this script if your "CollectionTree" files change

 Run the Example
=================


root run-mySelector.C	# this opens a PROOF session and copies 2000 events from 
			# your chain to a new tree; edit mySelector.C, 
			# mySelector::Process() method to customize your analysis

## You can edit mySelector.C / mySelector.h and then run "root run-mySelector.C" after each iteration for testing
## The number of events you run over can be changed in run-mySelector.C; it is an argument of chain->Process(...)