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Home -> Community -> Usenet -> comp.databases.theory -> Re: Idempotence and "Replication Insensitivity" are equivalent ?
pamelafluente_at_libero.it wrote:
> I see what you mean.
>
> Hmmm...
> However, what one can observe is that for the same transformation this
> invariance property does not hold for the AVG, as well, and this does
> not seem to be a big problem ...
Whether or not it's a "big problem" depends entirely on your real life data model. By themselves, the statistics are meaningless numbers. *You* have to decide what makes sense in your model and whether the order statisctics invariance benefit is really useful.
>
> Both are invariant wrt linear transformations .... What do you think ?
I think that you may consider reading a book or two on statistics analysis if you are really interested in this kind of stuff.
>
> -P
Received on Mon Sep 25 2006 - 11:48:55 CDT
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