analysisScript.py

#!/usr/bin/env python3
 
 
 
# This is the main file for the analysis script
 
import os
import sys
from tools import getBelleUrl_data, getBelleUrl_mc
import basf2 as b2
from modularAnalysis import variablesToNtuple
from modularAnalysis import fillParticleList
 
from b2biiConversion import convertBelleMdstToBelleIIMdst
 
 
# ------- Arguments sorting
 
mc_or_data = sys.argv[1].lower()
isMC = {"mc": True, "data": False}.get(mc_or_data, None)
if isMC is None:
    sys.exit('First parameter must be "mc" or "data" to indicate whether we run on MC or real data')
 
if isMC:
    if len(sys.argv) != 9:
        sys.exit('Must provide all 8 parameters !')
    expNo = sys.argv[2]
    eventType = sys.argv[3]
    dataType = sys.argv[4]
    belleLevel = sys.argv[5]
    minRunNo = sys.argv[6]
    maxRunNo = sys.argv[7]
    streamNo = sys.argv[8]
else:
    if len(sys.argv) != 8:
        sys.exit('Must provide all 7 parameters !')
    expNo = sys.argv[2]
    skimType = sys.argv[3]
    dataType = sys.argv[4]
    belleLevel = sys.argv[5]
    minRunNo = sys.argv[6]
    maxRunNo = sys.argv[7]
 
 
# ------- B2BII
 
os.environ['PGUSER'] = 'g0db'
os.environ['USE_GRAND_REPROCESS_DATA'] = '1'
 
if isMC:
    url = getBelleUrl_mc(expNo, minRunNo, maxRunNo,
                         eventType, dataType, belleLevel, streamNo)
else:
    url = getBelleUrl_data(expNo, minRunNo, maxRunNo,
                           skimType, dataType, belleLevel)
 
mypath = b2.create_path()
convertBelleMdstToBelleIIMdst(url, applySkim=True, path=mypath)
 
 
# ------- Output file
 
outDir = './analysisOutput'
 
filenameEnd = '_'.join(sys.argv[2:]) + '.root'
 
outputFileName = outDir + '/output_' + filenameEnd
 
# ------- Rest of analysis script goes here...
 
# this sample code is taken from b2bii/examples
 
fillParticleList('pi+:all', '', path=mypath)
 
kinematic_variables = ['px', 'py', 'pz', 'E']
 
variablesToNtuple(
    'pi+:all', kinematic_variables, filename=outputFileName, path=mypath)
 
# progress
progress = b2.register_module('Progress')
mypath.add_module(progress)
 
b2.process(mypath)
 
# Print call statistics
print(b2.statistics)