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selnor1983 on 06 January 2014
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ethomaz said:

ioi said:

Read the entire thread, there's lots in there about how the data is estimated which should hopefully give you (and others) a much better understanding.

A comment like "for me an error less than 50k is acceptable but over 100k not... it is a big error and needs to be fixed asap" is so pointless and demonstrates your ignorance of the situation - frankly, it doesn't matter what you feel is acceptable or not, it is a case of what is realistic and achievable with the data we have. As a user of the data, you need to understand its limitations and how best to use it. The data is what it is, you have to bend to suit it, it won't bend to suit you I'm afraid.

I will try to read more later but it is not about what suit me or anything like... it is more about how accurate the data is... I think big difference bettween NPD and VGC bad for example while a difference around 50k is fine.

And I always try to use the data we have from others tracks see how the VGC is doing... maybe I'm wrong doing that but I think the data needs to be close to reach some accuracy.

An example? The VGC number for Xbone are inline with the MS shared numbers (2 million in 18 days) but all the others tracker we have sales shows the console didn't sold these units in these 18 days unless they did some crazy numbers in America Latina like 500k units and I really can't believe Brazil buying 200-300k units... so if the maths didn't match I think there are some erros in the data... where? I don't know but the maths needs to match or at least be close to match... over 100k difference for me is a big deal for a consoles tha sold less than 3 million units.

I dont think you understand.

Its mathematics. The percentages dont change regardless of the amount estimated. Hence why 10 million will provide bigger ( figure ) margin. The larger the amount the greater the apparant difference may be. Even though the same method and % is used. VGC has never claimed to be an exact science. Nor is NPD for that matter. Only Sony, Microsoft and NIntendo have exact figures. and they rarely say outside sold to retail.