<!--
    Single channel configuration exampple.  
    The top level configuration XML is example.xml

    NormalizedByTheory should be "True" (not "TRUE" or "true") for all non-data-driven backgrounds.

    If you comment or remove the <Data> tag then it will use the expected data.

    Histogram inputs should be in pb and in top-level xml the lumi should be in 1/pb
    (The important thing is that they match... fb and 1/fb is also ok)

    Note: Config.dtd needs to be accessible.  It can be found in ROOT release area.  
    The file system path is relative to location of this XML file, not the executable.
-->

<!DOCTYPE Channel  SYSTEM 'HistFactorySchema.dtd'>

<!-- Notice that there is no signal in the control region -->

  <Channel Name="controlRegion" InputFile="./data/dataDriven.root"  >
    <Data HistoName="ControlRegion" HistoPath="" />

    <!-- Configure Stat Errors -->
    <StatErrorConfig RelErrorThreshold="0.05" ConstraintType="Gaussian" />

    <!-- MC Background in control region -->
    <!-- With StatError on MC Shape -->
    <Sample Name="background1" HistoPath="" NormalizeByTheory="True" HistoName="Background1" >
      <StatError Activate="True" /> 
      <OverallSys Name="bkg1CrossSection" Low="0.95" High="1.05"/>
    </Sample>

    <!-- Background 2 is completely DataDriven -->
    <!-- We fit its shape in this channel -->
    <!-- (As well as simultaneously in the signal region) -->
    <Sample Name="background2" HistoPath="" NormalizeByTheory="False" HistoName="FlatHist"  >
      <ShapeFactor Name="Bkg2Shape"/>
    </Sample>

  </Channel>