Main stats in XUD
VPIP: This is one of the most important (if not the most important) stat in our FIRE. VPIP displays the percentage of
hands with which we voluntarily put money into the pot. So, for example, if a player puts the big blind and no longer puts a cent into the pot, then such a hand is not counted in VPIP, since the blinds are not voluntary bets, but obligatory bets. In fact, this stat
tells us how often a player enters the game preflop. A high VPIP makes us understand that a player is very active preflop, and a low one - on the contrary, that a player is very selective with his starting hands.
PFR: Stat PFR gives us information about how often a player raises preflop. This includes raises in the form: open-raise, isolate, 3-bet, 4-bet cold, etc. A high PFR value tells us that the player is inclined to play most of his hands aggressively. Low PFR can be interpreted differently, and that is why we must consider PFR in combination with the VPIP stat.
A large gap between VPIP and PFR will mean that the player is more inclined to passive play, and a small gap to aggressive play.
AF: This stat is called the "factor of aggression." His formula is as follows: (Beta + raises) / Calls. In fact, this indicator determines the inclination of each particular player to aggressive actions. This stat can be used in different ways. For example, if a player has AF = 3, this means that he is 3 times more likely to do aggressive action than to call. If the player AF = 1, then he with the same frequency and calls, and puts (raises).
