title: Which datamining tool to use?
body: <p>Can somebody explain me the main pros and cons of the most known datamining open-source tools?</p>
  
  <p>Everywhere I read that <strong>RapidMiner</strong>, <strong>Weka</strong>, <strong>Orange</strong>, <strong>KNIME</strong> are the best ones. 
  <a href="http://thenewstack.io/six-of-the-best-open-source-data-mining-tools/" rel="noreferrer">look at this blog post</a></p>
  
  <p>Can somebody do a fast technical comparison in a small bullet list.</p>
  
  <p>My needs are the following:</p>
  
  <ul>
  <li>It should support classification algorithms (Naive Bayes, SVM, C4.5,
  kNN). </li>
  <li>It should be easy to implement in Java.  </li>
  <li>It should have understandable documentation. </li>
  <li>It should have reference production projects or use cases working on in.</li>
  <li>some additional benchmark comparison if possible.</li>
  </ul>
  
  <p>Thanks!</p>