Issue 27 in opentestbed: Bankroll amounts are over inflated.
opent...@googlecode.com
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 27 by jrubin01: Bankroll amounts are over inflated.
http://code.google.com/p/opentestbed/issues/detail?id=27
What steps will reproduce the problem?
1. Run a standard cash game with 2 players.
2. Examine the FTP hand history file.
3. Examine the bankroll values given by the resulting chart.
What is the expected output? What do you see instead?
For the following hand I would have expected the amount MCTSbot collected
to be $2 (i.e. 1 big blind), however this is recorded as a profit of $4 and
this leads to over-inflating the profit/loss values displayed in the final
chart:
Full Tilt Poker Game #372278725214309: Table OpenTestBed - $1.00/$2.00 - No
Limit Hold'em - 07:04:59 NZDT - 2010/10/11
Seat 1: Agt 1 (SartreNL/SartreNL) ($400.00)
Seat 2: Agt 2 (MCTSBot/MCTSBot) ($400.00)
Agt 2 (MCTSBot/MCTSBot) posts the small blind of $1.00
Agt 1 (SartreNL/SartreNL) posts the big blind of $2.00
The button is in seat #1
*** HOLE CARDS ***
Dealt to Agt 1 (SartreNL/SartreNL) [Th Qh]
Dealt to Agt 2 (MCTSBot/MCTSBot) [Ks 9s]
Agt 2 (MCTSBot/MCTSBot) raises to $48.35
Agt 1 (SartreNL/SartreNL) folds
Uncalled bet of $46.35 returned to Agt 2 (MCTSBot/MCTSBot)
Agt 2 (MCTSBot/MCTSBot) wins the pot ($4.00)
*** SUMMARY ***
Seat 2: Agt 2 (MCTSBot/MCTSBot) collected ($4.00)
What version of the product are you using? On what operating system?
Windows Vista
Please provide any additional information below.
opent...@googlecode.com
Comment #1 on issue 27 by bluegaspode: Bankroll amounts are over inflated.
http://code.google.com/p/opentestbed/issues/detail?id=27
hi jrubin01, thanks for the report.
there is testcase testing your described behavior (see
DealerTest.testWinAmount).
The JavaDoc claims that this is very intentional (at least for three
players).
A raise from the small blind is the actual 1$ call (which goes into the
pot) and the actual raise which wins the pot (which is 4$ then).
Do you have any logs from FullTilt or PokerStars that write that
differently ?
Please also note that I unfortunately am not coding anymore on opentestbed
(a small family changed my life). Though it's very interesting that you
have a version of Sartre playing here :D
I also never was able to make MCTSBot behave like I wanted (and find a
configuration that would win against the SimpleBot). Guy (one of the
authors of MCTSBot) will need a new student who might continue on MCTSBot
here in OpenTestBet so currently the project is a bit dormant.
opent...@googlecode.com
Comment #2 on issue 27 by jrubin01: Bankroll amounts are over inflated.
http://code.google.com/p/opentestbed/issues/detail?id=27
That's a shame, you've got a great testbed here.
Just as a follow up to the issue:
What about the values depicted in chart.png that is produced? Take the
following 3 duplicate hands (6 hands total) as an example (see attachment).
The bankroll I am given in the chart looks like this:
Agt (SartreNL/SartreNL): $-407.00 ($-6783.33/100)
Given by adding the following values:
Duplicate hand 1: (-12 + 4) /2
Duplicate hand 2: (-12 - 800)/2
Duplicate hand 3: (2 + 4)/2
* where 2 is the value of the big blind.
So according to the final chart Sartre ended up with a loss of -407 big
blinds, however Sartre only contributed a total of 204 big blinds overall,
the remaining 203 big blinds are actually from MCTSBot's stack.
Shouldn't the bankroll values depicted in the chart only include chips that
were either won or lost by the agent?
Attachments:
SartreNL-vs-MCTSBot-101012-1255-history.txt 4.6 KB
SartreNL-vs-MCTSBot-101012-1255-chart.png 36.3 KB
Felipe Kurkowski
the agent. After the simulation, Sartre's loss was exactly $407.00.
This behavior is expected based on the history as your agent lost
203.5BB .
As far as I can see, there's absolutely nothing wrong with the payout
functions. The payout method on PublicGameInfo is flawless and the
bankrollDelta is calculated comparing the bankroll before and after
the hand. The values showed on the history are the chips collected
from the pot and not the net gain.
On 11 out, 21:42, opentest...@googlecode.com wrote:
> Comment #2 on issue 27 by jrubin01: Bankroll amounts are over inflated.http://code.google.com/p/opentestbed/issues/detail?id=27
opent...@googlecode.com
Comment #3 on issue 27 by FelipeKurkowski: Bankroll amounts are over
inflated.
http://code.google.com/p/opentestbed/issues/detail?id=27
Actually, the values on the chart represent the actual money lost by the
opent...@googlecode.com
Comment #4 on issue 27 by jrubin01: Bankroll amounts are over inflated.
http://code.google.com/p/opentestbed/issues/detail?id=27
Ah ok sorry. For some reason I was thinking the values on the chart
depicted the number of BB's won/lost.
opent...@googlecode.com
Status: Invalid
Comment #5 on issue 27 by bluegaspode: Bankroll amounts are over inflated.
http://code.google.com/p/opentestbed/issues/detail?id=27
Hi jrubin01,
yeah the chart only shows absolute value won/lost and relative to 100 games.
For some reason I didn't include bb/100 (I think because depending on the
game limit/no limit, people use Big Bets or Big Blinds for their stats and
I wanted to have a neutral value). Just divide the value by your big blind
setting.
I also just double checked with a hand history of Poker Academy:
------------------------------------------
Poker Academy Pro #1,848
No Limit Texas Holdem ($0.05/$0.1 NL)
Table Test
October 14, 2010 - 20:35:40 (CEST)
1} bluegaspode * $30 5d 7d
2) Unknown-0 $30 Kd 5h
bluegaspode posts small blind $0.05
Unknown-0 posts big blind $0.10
bluegaspode raises $29.90 (all-in)
Unknown-0 folds
bluegaspode wins $0.20 uncontested
-------------------------------
As you can see in this match I 'win' the pot of $0.20.
This is the small blind and big blind + a call from the small blind (a
raise is always considered a call and the actual raise amount). As the
raise wasn't answered it was just returned, but the (implicit) call stays
in the pot.
So my hand histories as printed are right.
The $0.20 of course should't be confused with the 'real' win.
Our bankroll at the time of winning is reduced already by -0.10$ (small
blind + call), now we win $0.20 so the effective change in the bankroll is
just +0.10 (the villains big blind).
The charts always show your real bankroll - so after such a game you would
have a plus of $0.10 in the chart.