/** @dir root

This directory contains source and header files of classes related to ROOT.

@note Compiling these sources is optional.

@sa <a href="../../user/html/ntuple_root.html#ntuple_roottuple">
RootNTuple class</a>  and
<a href="../../user/html/install_notes.html#install_root">Install ROOT</a>

*/

/**
@class TBranch
@brief The ROOT TBranch class.

The ROOT TBranch class is used to access the data in a branch.  The @b
HippoDraw class RootBranch is a wrapper for the TBranch.

*/

/**
@class TLeaf
@brief The ROOT TLeaf class.

The ROOT TLeaf class described the contents of a TBranch.  It is not
the leaf itself, but rather a description of the leaf objects.

*/

/**
@class TTree
@brief The ROOT TTree class.

The ROOT class that contains TBranch objects which hold the data in a
ROOT file.

*/