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File indexing completed on 2023-05-20 02:14:19

0001 import FWCore.ParameterSet.Config as cms
0002 def OVar(valtype, doc=None, precision=-1):
0003     """ Create a PSet for a variable in the tree (without specifying how it is computed)
0004 
0005            valtype is the type of the value (float, int, bool, or a string that the table producer understands),
0006            doc is a docstring, that will be passed to the table producer,
0007     """
0008     if   valtype == float: valtype = "float"
0009     elif valtype == int:   valtype = "int"
0010     elif valtype == bool:  valtype = "bool"
0011     return cms.PSet(
0012                 type = cms.string(valtype),
0013                 doc = cms.string(doc if doc else expr),
0014             precision=cms.optional.allowed(cms.string, cms.int32, default = (cms.string(precision) if type(precision)==str else cms.int32(precision)
0015            )))
0016 def Var(expr, valtype, doc=None, precision=-1):
0017     """Create a PSet for a variable computed with the string parser
0018 
0019        expr is the expression to evaluate to compute the variable
0020        (in case of bools, it's a cut and not a function)
0021 
0022        see OVar above for all the other arguments
0023     """
0024     return OVar(valtype, doc=(doc if doc else expr), precision=precision).clone(
0025                 expr = cms.string(expr))
0026 
0027 def ExtVar(tag, valtype, doc=None, precision=-1):
0028     """Create a PSet for a variable read from the event
0029 
0030        tag is the InputTag to the variable.
0031 
0032        see OVar in common_cff for all the other arguments
0033     """
0034     return OVar(valtype, precision=precision, doc=(doc if doc else tag.encode())).clone(
0035                 src = tag if isinstance(tag, cms.InputTag) else cms.InputTag(tag),
0036           )
0037 
0038 
0039 PTVars = cms.PSet(
0040     pt  = Var("pt",  float, precision=-1),
0041     phi = Var("phi", float, precision=12),
0042 )
0043 P3Vars = cms.PSet(PTVars,
0044     eta  = Var("eta",  float,precision=12),
0045 )
0046 P4Vars = cms.PSet(P3Vars,
0047     mass = Var("mass", float,precision=10),
0048 )
0049 CandVars = cms.PSet(P4Vars,
0050     pdgId  = Var("pdgId", int, doc="PDG code assigned by the event reconstruction (not by MC truth)"),
0051     charge = Var("charge", int, doc="electric charge"),
0052 )
0053 
0054 
0055 
0056