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:
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
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.