Definition of agression factor
This is a statistic that is very often used in the poker trackers. It is a proportion of the calls and raisess to the opponent's calls. For example, if an opponent has bet twice, raised twice and called twice, we will make (bet 2 + raise 2)/ call 2 so 4/2 so 2. An aggression factor of 2 is seen as an average. At 1 and less you are too passive and at 3 and more you are very aggressive. This statistic should not be confused with the frequency of aggression which is a little less used.
A practical example of the agression factor
How can this statistic help me? To make the right decisions, of course! Let's take an example on the river. You have just completed a straight on the river, but the map that completes the sequence also completes the color (flush). You decide to bet your hand to be called by brelans or both pairs. After all, your hand is very strong. After your bet, your opponent will call you check-raise! What to do? It might be a good idea to take a look at your opponent's aggression factor. If your opponent has an aggression of 1 or 0.8, chances are he has the flush. If he has say 8, it is very possible that he is on a bluff!