This directory contains all the basic classes for creating/manipulating Trees.
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 Several documents describing the TTree classes are listed below:
<ul>
<li>The TTree data structure is documented in class TTree.</li>
<li><a href="ftp://root.cern.ch/root/doc/12Trees.pdf">The Chapter about Trees in the Users Guide
    </a></li>
<li><a href="ftp://root.cern.ch/root/doc/21ExampleAnalysis.pdf">The Chapter about Selectors in the Users Guide
    </a></li>
<li><a href="ftp://root.cern.ch/root/doc/24PROOF.pdf">The Chapter about PROOF in the Users Guide
    </a></li>
<li><a href="ftp://root.cern.ch/root/doc/11InputOutput.pdf">The Chapter about IO in the Users Guide
    </a></li>
<li><a href="http://root.cern.ch/root/HowtoWriteTree.html">How to Create and Fill a Tree 
    </a></li>
<li><a href="http://root.cern.ch/root/HowtoReadTree.html">How to Read a Tree 
      </A></li>
<li><a href="http://root.cern.ch/root/HowtoChain.html">How to use Chains
      </A></li>
</ul>
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