There are several guides available in the "
documentation" section of the PT3 website as well as some helpful guides in the
FAQ section of the forums.
Also, the following 2+2 threads are worth a good read if you want to learn more about the statistics and how to interpret them (the threads are written for PT2, but the information in them is still mostly accurate):
http://archives1.twoplustwo.com/show...Number=4946669
http://forumserver.twoplustwo.com/sh...d.php?t=165898
http://forumserver.twoplustwo.com/sh...d.php?t=158015