Definition of the aggression factor
This is a very common statistic used in poker trackers. It is a ratio of calls and raises to the opponent's calls. For example, if an opponent bet twice, raised twice and called twice, the ratio would be (bet 2 + Raise 2)/call 2 so 4/2 so 2. An aggression factor of 2 is seen as an average. ?? 1 and less you are too passive and at 3 and more you are very aggressive. This statistic should not be confused with the aggession frequency which is used a little less.
A practical example of the aggression factor
?? how can this statistic be useful to me? ?? make the right decisions of course! Let's take an example on the river. You just completed a straight on the river, but the card that completes the sequence also completes the flush. You decide to bet your hand to be called by flushes or two pair. After all, your hand is very strong. After you bet, your opponent checks-raises you! What to do? Taking a look at the aggression factor might be a good idea. If your opponent has an aggression of 1 or 0.8, he is likely to have the flush. If he has, say, 8, it is very possible that he is bluffing to get you to fold!