EventCounter.py

#! /usr/bin/env python



###################################################################
##								 ##
## Name: TWrate.py						 ##
## Author: Kevin Nash 						 ##
## Date: 6/5/2012						 ##
## Purpose: This program creates eta binned tags and probes 	 ##
##          as a function of Pt for data and MC for use with 	 ##
##          TWrate_Maker.py.					 ##
##								 ##
###################################################################

import os
import glob
import math
from math import sqrt,exp
import ROOT
from ROOT import std,ROOT,TFile,TLorentzVector,TMath,gROOT, TF1,TH1F,TH1D,TH2F,TH2D
from ROOT import TVector
from ROOT import TFormula

import sys
from DataFormats.FWLite import Events, Handle
from optparse import OptionParser
from array import *

parser = OptionParser()
 

parser.add_option('-b', '--bx', metavar='F', type='string', action='store',
                   default	=	'25ns',
                   dest		=	'bx',
                   help		=	'bunch crossing 50ns or 25ns')
parser.add_option('-s', '--set', metavar='F', type='string', action='store',
                  default	=	'data',
                  dest		=	'set',
                  help		=	'data or ttbar')

(options, args) = parser.parse_args()


print "Options summary"
print "=================="
for  opt,value in options.__dict__.items():
	#print str(option)+ ": " + str(options[option]) 
	print str(opt) +': '+ str(value)
print "=================="
print ""


#If running on the grid we access the script within a tarred directory
import Bstar_Functions	
from Bstar_Functions import *


#Based on what set we want to analyze, we find all Ntuple root files 

i = options.set 

files = Load_Ntuples(i,di)
print "File loaded"
    
events = Events(files)

totevents = events.size()

print i + ": " + str(totevents)  +  ' Events total'