JetResolution

class coffea.jetmet_tools.JetResolution(**kwargs)

Bases: object

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

It implements the jet energy correction definition specified in the JER TWiki.

You can use this class as follows:

jr = JetResolution(name1=corrL1,...)
jetRes = jr.getResolution(JetParameter1=jet.parameter1,...)

in which jetRes are the resolutions, with the same shape as the input parameters. In order to see what parameters must be passed to getResolution, one can do jr.signature.

You construct a JetResolution object by passing in a dict of names and functions. Names must be formatted as ‘<campaign>_<dataera>_<datatype>_<level>_<jettype>’. You can use coffea.lookup_tools’ extractor and evaluator to get the functions from some input files.

Attributes Summary

signature

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

Methods Summary

getResolution(**kwargs)

Returns the set of resolutions for all input jets at the highest available level

Attributes Documentation

signature

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

Methods Documentation

getResolution(**kwargs)

Returns the set of resolutions for all input jets at the highest available level

Use it like:

jrs = reso.getResolution(JetProperty1=jet.property1,...)