gen.LHEWeightAnalyzer.LHEWeightAnalyzer Class Reference

Inheritance diagram for gen.LHEWeightAnalyzer.LHEWeightAnalyzer:

Public Member Functions
def	__init__ (self, cfg_ana, cfg_comp, looperName)
def	beginLoop (self, setup)
def	declareHandles (self)
def	process (self, event)

Detailed Description

Read the WeightsInfo objects of the LHE branch and store them
   in event.LHE_weights list.

   If the WeightsInfo.id is a string, replace it with an integer.

   So far the only allowed string format is "mg_reweight_X",
   which gets stored as str(10000+int(X))

   If w.id is an unknown string or anything but a string or int,
   a RuntimeError is raised.

Definition at line 7 of file LHEWeightAnalyzer.py.

Constructor & Destructor Documentation

__init__()

def gen.LHEWeightAnalyzer.LHEWeightAnalyzer.__init__	(		self,
			cfg_ana,
			cfg_comp,
			looperName
	)

Definition at line 19 of file LHEWeightAnalyzer.py.

    def __init__(self, cfg_ana, cfg_comp, looperName ):
        super(LHEWeightAnalyzer,self).__init__(cfg_ana,cfg_comp,looperName)
 

Member Function Documentation

beginLoop()

def gen.LHEWeightAnalyzer.LHEWeightAnalyzer.beginLoop	(		self,
			setup
	)

Definition at line 30 of file LHEWeightAnalyzer.py.

    def beginLoop(self, setup):
        super(LHEWeightAnalyzer,self).beginLoop(setup)
 

declareHandles()

def gen.LHEWeightAnalyzer.LHEWeightAnalyzer.declareHandles

(

self

)

Definition at line 22 of file LHEWeightAnalyzer.py.

    def declareHandles(self):
        super(LHEWeightAnalyzer, self).declareHandles()
        self.mchandles['LHEweights'] = AutoHandle('externalLHEProducer',
                                                  'LHEEventProduct',
                                                  mayFail=True,
                                                  fallbackLabel='source',
                                                  lazy=False )
 

References core.Analyzer.Analyzer.mchandles.

process()

def gen.LHEWeightAnalyzer.LHEWeightAnalyzer.process	(		self,
			event
	)

Definition at line 33 of file LHEWeightAnalyzer.py.

    def process(self, event):
        self.readCollections( event.input )
 
        # if not MC, nothing to do
        if not self.cfg_comp.isMC:
            return True
 
        # Add LHE weight info
        event.LHE_weights = []
        event.LHE_originalWeight = 1.0
        if self.mchandles['LHEweights'].isValid():
            event.LHE_originalWeight = self.mchandles['LHEweights'].product().originalXWGTUP()
 
            for w in self.mchandles['LHEweights'].product().weights():
                # Check if id is string or int and convert to int if it's a string
                try:
                    int(w.id)
                    event.LHE_weights.append(w)
                except ValueError:
                    if not isinstance(w.id, str):
                        raise RuntimeError('Non int or string type for LHE weight id')
 
                    newweight = WeightsInfo()
                    newweight.wgt = w.wgt
                    if w.id.startswith('mg_reweight'):
                        newid = str(10000 + int(w.id.rsplit('_',1)[1]))
                        newweight.id = newid
 
                    else: raise RuntimeError('Unknown string id in LHE weights')
                    event.LHE_weights.append(newweight)
 
        return True
 
setattr(LHEWeightAnalyzer,"defaultConfig",

References analyzer.Analyzer.cfg_comp, looper.Looper.cfg_comp, createfilelist.int, core.Analyzer.Analyzer.mchandles, core.Analyzer.Analyzer.readCollections(), str, and HLT_2018_cff.weights.