<h1>RapidMiner</h1>
<ul>
<li><a href="https://community.rapidminer.com/" rel="nofollow noreferrer">The one forum </a> (rapid-i developers participate, too)</li>
<li><a href="http://sourceforge.net/projects/rapidminer/files/1.%20RapidMiner/5.1/rapidminer-5-manual-english_v1.0.pdf/" rel="nofollow noreferrer">User Manual for RM 5.x</a></li>
<li><a href="https://docs.rapidminer.com/latest/developers/" rel="nofollow noreferrer">Developer Manual</a></li>
</ul>
