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Author: legolas
Date: 17-05-2004, 16:54
| Hi, I know that my following question is really academic but…I noticed, looking for informations in Bert’s site (really great!), that some coefficient in the club rankings are rounded up, differently from what provided in the regulations just updated.
In particular, I refer to the coefficients of clubs from the following associations:
Greece: I calculated 34.748*0.33 = 11.46684, which becomes 11.466 (in Bert’s site 11.467)
Belgium: 28.875*0.33 = 9.52875, 9.528 (“ 9.529)
Czech Rep.: 33.075*0.33 = 10.91475, 10.914 (“ 10.915)
Switzerland: 22.375*0.33 = 7.38375, 7.383 (“ 7.384)
Croatia: 17.375*0.33 = 5.73375, 5.733 (“ 5.734)
Macedonia: 4.830*0.33 = 1.59390, 1.593 (“ 1.594)
Kakakhstan: 0.666*0.33 = 0.21978, 0.219 (“ 0.220)
At the same way, I notice that, in the case of other coefficients with the fourth decimal greater than “5”, these values are, as usual, not rounded up in Bert’s tables (i.e. Georgia, 4.999*0.33 = 1.64967).
Why this difference? May someone clear my little “theorethycal” doubt? If so, thanks.
V
P.S. My compliments to the site and to the forum. |
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Author: vakho
Date: 17-05-2004, 18:00
| I can recall from my H.Maths course that there exists method called FLOOR or smth simular which is sometimes used in statistics where you just round-up the last decimal precision by downgrading it to 0 despite of it's value. |
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Author: bert.kassies
Date: 17-05-2004, 19:44
| Deep within my C++ program for the calculation of the coefficients is the following formula for the country contribution to the team ranking: int( 330*countryranking + 0.25 ) / double( 1000 ).
Note that in this formula there is a small correction of 0.25 before the clipping to three decimal digits. I have no good explanation for it. It was simply introduced to get the same coefficients as UEFA published. In the past (with 50% country contribution) the formula int( 500*countryranking + 0.25 ) / double( 1000 ) gave excellent matching. |
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Author: Forza-AZ
Date: 17-05-2004, 20:39
| By the way, shouldn't it be 333 in stead of 330.
It is said 33% but I think it's really 1/3 (so 33,33333%) |
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Author: legolas
Date: 17-05-2004, 23:22
| Thank you very much for all the informations and details about the calculation procedure: I didn't know it. Bye, V |
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