"3Bet vs ..." category stats?

[gigenieks]

I'm not sure I understand..

For example, what is "3Bet vs BB 2Bet" ? What situations exactly?
And "3Bet vs SB 2Bet" ?

[kraada]

3Bet vs BB 2Bet is when everyone limps to the big blind and he raises how often someone who limped (because everyone in must have limped) reraises that raise.

3Bet vs SB 2Bet is when everyone limps (or folds) to the small blind, how often someone who can reraises him (the BB hasn't limped yet but everyone else still in must have, this stat includes both data points).

[gigenieks]

So in 3Bet vs SB 2Bet it is:
a) everyone limp, we raise and how often they reraise us
+ b) everyone fold vs open bet vs BB and he then reraise us
Right?

Next, what is the difference between "3Bet vs BTN 2Bet" and "3Bet vs BTN Open" ?

[kraada]

Close but not exactly - it's how often any player 3bets given that the first raise came from the SB - that includes the BB raises when everyone limps to the SB and the SB raises also.

The difference between "3Bet vs BTN 2Bet" and "3Bet vs BTN Open" is that the former includes times there are limpers before the button and the latter excludes cases with limpers.