RE: [Bug-gnubg] Stats labels

[Ian Shaw]

I find "Total EMG Errors (Errors) in points" confusing. What does
"Errors (Errors)" mean?

I still prefer the proposal you have quoted as <JIM>. I think it's
better because there is only one entry per line and it is well labelled.


For strict accuracy, Snowie units should be "mp/move", not
"mp/decision".
-- Ian


________________________________

        From: address@hidden
[mailto:address@hidden On Behalf Of
Massimiliano Maini
        Sent: 29 February 2008 10:44
        To: address@hidden
        Subject: [Bug-gnubg] Stats labels
        
        

        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.