Basketball Statistics Blog

Sunday's Reflexions on Basketball Statistics:
Some Reflections about a Basketball Game Analyst or a Scientific Analyst

Some reflections with the hope of contributing to the discussion about the use of statistics and statistical analysis of basketball.

When I write my expositions for the basketball statistics register courses in eBA Clinics, I always arrive to the point of explaining why some formula is not applied by the eBA Basketball Statistics Analysis System.

I was working principally over the past 24 years with the statistics from the South American and European basketball, based upon the formulas I used as a coach to evaluate players. But always I stayed with the doubt with reference to those mathematical-complicated machinations based formulas used on other systems...

I am a 'game analyst' but NOT a scientific analyst of the regression and coefficient type. And I think that my head coach must understand every number and number I give him, and this data's source !

Must a Basketball Head Coach understand a formula like this... ?

             __                               __
            |           (Rtg-Opp.Rtg)           |
Win% = NORM |-----------------------------------|
            |       SD(Rating Difference)       |
            |__                               __|

SD(Rating Difference) = SD(Rtg - Opp.Rtg)
                      = SQRT[Var(Rtg)+Var(Opp.Rtg)
                      -2*Cov(Rtg,Opp.Rtg)]

NORM means to take the percentile of
a mean-zero variance-one normal distribution
corresponding to a value given by that in
the brackets I faked.

Rtg:		Points scored per 100
		possessions (offensive rating)
Opp.Rtg:	Points allowed per 100
		possessions (defensive rating)
SD():		Statistical standard deviation
		of quantity in parentheses ()
Var():		Statistical variance of
		quantity in parentheses ()
Cov():		Statistical covariance of
		quantities in parentheses ()"

( and from the complicated formulas , this is one of the simplest ! )

...I am having doubts ! Perhaps we are exaggerating...

Therefore, the eBA Basketball Statistics Analysis System is based upon calculations of various statistical categories, weighted in terms of importance, that have been used by basketball coaches for many, many years.

Basketball Coaches not always understand the intrigues of some of the statistical specialized technical terminology, but I am completely sure that the Head Coach must understand the source of statistical data we give them !
( To be Continued ! )

This topic is resumed in the eBA Basketball Statistics Analysis System
at the eBA System > The Articles

Sunday Basketball Training Videos:
Hesitation & Fake Pass with Theo Papaloukas
The Copyrights from this Video Owns to NIKE.com

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tags:  basketball  ~ basketball statistics   ~  basketball training videos  ~  NIKE  ~  Theo Papaloukas  ~  Game Analyst or Scientific Analyst ?
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