Hi all,
in an old post to the mailing list (thread "Luck rates ?") we discussed
about changing
the somehow confusing labels shown by gnubg in the stats (Error and Luck
stats).
You can fetch the entire thread, but I just recap the issue here below
(cut&paste of
previous posts):
<QUOTE Jim>
Here are examples of money play and match play from the current
implementation:
yanwolfy ianshaw
Error rate (total) -7.290 ( -8.329) -3.441 (-3.549)
Error rate (per decision) -34.5 ( -0.039) -15.9 (-0.016)
Equiv. Snowie error rate -19.4 -9.2
Luck rate (total) +2.929 ( +2.118) -2.330 (-4.734)
Luck rate (per move) +15.7 ( +0.011) -12.3 (-0.025)
Bennet Shaw
Error rate (total) -2.808 (-23.283%) -3.397
(-22.420%)
Error rate (per decision) -19.8 ( -0.164%) -22.6
(-0.149%)
Equiv. Snowie error rate -9.1 -11.0
Luck rate (total) -5.198 (-49.754%) -1.288
(-8.433%)
Luck rate (per move) -33.3 ( -0.319%) -8.4
(-0.055%)
The current system is confusing because:
1) the bracketed part of the title does not refer to the bracketed part of
the data
2) it is not clear what the first and second (bracketed) values mean
3) "Error rate (total)" and "Luck rate (total)" are not rates at all (as
Christian said). They are simply "Total Errors" and "Total Luck".
4) the units are not specified, which would be good practice. Totals are
in points for money play or MWC for matches; rates should be in
millipoints per decision for errors or millipoints per move for luck.
<END QUOTE Jim>
At th end of the thread, the last proposals were:
<QUOTE Jim>
yanwolfy ianshaw
Overall Statistics:
Total Errors (points) -7.290 -3.441
Total Errors as EMG (points) -8.329 -3.549
Error rate (mp/decision) -34.5 -15.9
Error rate as EMG (points/decision) -0.039 -0.016
Equiv. Snowie error rate -19.4 -9.2
Luck Statistics:
Total Luck (points) +2.929 -2.330
Total Luck as EMG (points) +2.118 -4.734
Luck rate (mp/move) +15.7 -12.3
Luck rate as EMG (points/move) +0.011 -0.025
The display occupies four extra lines of text, but they would fit within
the existing area of the gui. It has the advantage of clearly
identifying both measurements.
The units labels are a bit ugly, so maybe we can dispense with them
after all. (Can we do a mouse-over tooltip on this section?)
It appears that the EMG luck rate and EMG error rate have not been
multiplied by 1000 to convert from points to millipoints per move. There
ought to be consistency here.
<END QUOTE Jim>
And:
<QUOTE Max>
yanwolfy ianshaw
Overall Statistics:
Total Errors in points (EMG) -7.290 (-8.329) -3.441
(-3.549)
Error rate in mp/decision (EMG) -34.5 (-39.0) -15.9 (-16.0)
Equiv. Snowie error rate in mp/move -19.4 -9.2
Luck Statistics:
Total Luck in points (EMG) +2.929 (+2.118) -2.330
(-4.734)
Luck rate in mp/move (EMG) +15.7 (+11.0) -12.3 (-25.0)
The only downside of this setup is, to me, that the most meaningful error
values (the total error EMG and error rate EMG) are in brackets.
<END QUOTE Max>
My last comment was about the fact that the meaningful quantities to look
at
at the end of a match are
- Normialized error (total or rate)
- Unnormalized luck (total or rate)
Hence a proposal of:
(1) yanwolfy ianshaw
Overall Statistics:
Total EMG Errors (Errors) in points -8.329 (-7.290) -3.549
(-3.441)
EMG Error (Error) rate in mpoints/unf.decision -39.0 (-34.5) -16.0
(-15.9)
EMG error rate in mpoints/decision (Snowie) -19.4 -9.2
Luck Statistics:
Total Luck (EMG Luck) in points +2.929 (+2.118) -2.330
(-4.734)
Luck (EMG Luck) rate in mpoints/decision +15.7 (+11.0) -12.3
(-25.0)
Advantages:
- most meaningful figures are shown without brackets (in brackets we have
the
less interesting ones)
- units are clearly stated
Disadvantages:
- EMG values with brackets for Luck and without brackets for errors. This
may look
confusing, but in the GUI version Error and Luck are shown in separate
panels ...
If the last point is considered really annoying, I wuold live happily
with:
(2) yanwolfy ianshaw
Overall Statistics:
Total EMG Errors (Errors) in points -8.329 (-7.290) -3.549
(-3.441)
EMG Error (Error) rate in mpoints/unf.decision -39.0 (-34.5) -16.0
(-15.9)
EMG error rate in mpoints/decision (Snowie) -19.4 -9.2
Luck Statistics:
Total EMG Luck (Luck) in points +2.118 (+2.929) -4.734
(-2.330)
EMG Luck (Luck) rate in mpoints/decision +11.0 (+15.7) -25.0
(-12.3)
I'm for #1, Jim is (probably) for #2. If anybody has a preference ...
let's agree
on the best one and change the current confusing display. I think it's a
must if
we're going for a new "stable" release.
MaX.
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