ExtractYieldChanges

Extract the effects on the yields that individual parameters have on the workspace, resolved by parameter, sample and region. This action generates a set of tables in an output directory. The tables will contain the change in event yield for a +/- 1sigma variation of each parameter.

Usage:

+ExtractYieldChanges{
  +HWWRun2GGF {
    +prefit {
      <outputDirectory="workspaces/run2-ggf-$(fitLabel)/yieldChanges">
    }
  }
  @ ?/prefit {
    <snapshot="SnSh_AllVars_Nominal">
    <normPattern="ATLAS_HWWlvlvGGF_sampleNorm_$(SAMPLENAME)">
  }
}

Subfolders can be provided to the action to write more than one set of results. Each of these can be configured separately. The following configuration options are supported:

• snapshot: Give the name of the snapshot to be used. Uses the name of the subfolder as a default.
• outputDirectory: Output directory to write the tables to.
• fitResult: Define the fit result from which to take the list of parameters.
• threshold: Give a lower threshold on the change in number of events -- parameters with effects smaller than this will not be included in the tables. For further options, especially the usage of the normPattern tag, please see ActionExportHistograms.