An example config file for the Tree Analyzer boiler plate code

TreeAnalyzer_Config.xml

<?xml version="1.0" encoding="UTF-8"?>

<!-- A root node is required -->
<!--  It can be anything <root></root>, it just has to exist -->
<config>
	
	<TreeAnalyzer>
		

		<!-- Use an input tag for setting up the chain only. It isup to you to use an adapter -->
		<!--
		<input>
			<dst treeName="tree" maxFiles="1" nEvents="1000" url="/Users/danielbrandenburg/bnl/local/data/RM14_015/"/>
		</input>
		-->

		<!-- Use a datasource to setup an automap to the tree structure -->
		<DataSource treeName="PicoDst" url="/Users/danielbrandenburg/bnl/local/data/Run14/LBNL/" maxFiles="1">
			
			<!-- Set all branches off -->
			<BranchStatus status="0">*</BranchStatus>
			<!-- Turn on only the ones you need -->
			<BranchStatus status="1">
				Event*,
				Track*
			</BranchStatus>

			<!-- Alias branches -->
			<Alias name="vX" pointsTo="Event.mPrimaryVertex.mX1" />
			<Alias name="vZ" pointsTo="Event.mPrimaryVertex.mX3" />
			<Alias name="vertexX" pointsTo="vX" />

			<!-- Make evaluated leaves to provide variables at runtime -->
			<EvaluatedLeaf name="vY" value="[0] + 0.9" p0="Event.mPrimaryVertex.mX2" />
			<EvaluatedLeaf name="vR" value="TMath::Sqrt( [0]*[0] + [1]*[1] )" p0="vX" p1="vY" />
			<EvaluatedLeaf name="vR2" value="[0]*[0] + [1]*[1]" p0="vX" p1="vY" />
			
		</DataSource>

		<Reporter>
			<output url="rpTreeAnalyzer.pdf"/>
		</Reporter>
		<Logger>
			<logLevel>all</logLevel>
		</Logger>

		<histograms>
			<Histo name="pt" title="p_T [GeV]" nBinsX="100" minX="0" maxX="10" />
			<Histo name="pt1" title="p_T [GeV]" nBinsX="100" minX="0" maxX="10" />
			<Histo name="pt2" title="p_T [GeV]" nBinsX="100" minX="0" maxX="10" />
			<Histo name="pt3" title="p_T [GeV]" nBinsX="100" minX="0" maxX="10" />
		</histograms>

	</TreeAnalyzer>

</config>