Autorate

[limodude]

Sorry for such a newbie question but I have spent all day trying to get my Poker Tracker setup and I obviously see alot of people talking about autorating. Would someone be so kind as to explain what this is or point me to the right direction. I have read quite a bit about BisonBison's autorate rules but cannot find out where or what they do. I know this sounds awfully basic but some help would be much appreciated

Thanks