Author: Igor Gorelikov
Date: 08:57:38 01/23/04
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On January 23, 2004 at 10:12:00, Rolf Tueschen wrote: >Two progs stand at the top. One is number one in the ranking. But is it really >stronger than prog number two??? > >The answer is easy. If the normal variation, this famous +- value in the SSDF >list is say +-40 points and the difference between progs is 35 points THEN we >are unable to conclude anything for sure. It could be that 1 is stronger than 2 >but also the contrary could be true. Only from values >40 on we have >"certainty", statistically, that a prog in that specific design is proven >stronger than another one. > >This is all so simply and trivial that it is satifying to be able to clarify. > Not so simple. The difference between programs depens also on pool size. In small pool difference between the same programs should be bigger. There are no simple things in relativity that is ELO ;-) regards, Igor Gorelikov
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