JetCorrectionUncertainty

class coffea.jetmet_tools.JetCorrectionUncertainty(**kwargs)[source]

Bases: object

This class is a columnar implementation of the JetCorrectionUncertainty tool in CMSSW and FWLite. It calculates the jet energy scale uncertainty for a corrected jet in a given binning.

It implements the jet energy correction definition specified in the JES Uncertainty TWiki.

You can use this class as follows:

jcu = JetCorrectionUncertainty(name1=corrL1,...)
jetUncs = jcu(JetParameter1=jet.parameter1,...)

Attributes Summary

`levels`	list the different sources of uncertainty
`signature`	list the necessary jet properties that must be input to this function

Methods Summary

getUncertainty(**kwargs)

Returns the set of uncertainties for all input jets for all the levels (== sources)

Attributes Documentation

levels: list the different sources of uncertainty

signature: list the necessary jet properties that must be input to this function

Methods Documentation

getUncertainty(**kwargs)[source]

Returns the set of uncertainties for all input jets for all the levels (== sources)

Use it like:

juncs = uncertainty.getUncertainty(JetProperty1=jet.property1,...)
#'juncs' will be formatted like [('SourceName', [[up_val down_val]_jet1 ... ]), ...]
#in a zip iterator