Re: Aggregates: Largest Groups
From: paul c <toledobythesea_at_oohay.ac>
Date: Sun, 11 Apr 2010 01:18:24 GMT
Message-ID: <Ar9wn.1422$Z6.208_at_edtnps82>
>> On Apr 10, 6:58 pm, paul c <toledobythe..._at_oohay.ac> wrote:
>>
>>> An average of averages is generally not equal to an overall average.
>>
>> No, and this gives rise to one of the most annoying statistical
>> paradoxes out there as well: the Simpson-Yule one.
>>
>> Still, we can always guess as to the intention behind the original
>> question, and go from there. Perhaps that means that we would end up
>> with an entire family of algorithms instead of just one. Let's say,
>> variations on a theme. There's no harm in that -- the number would be
>> few, and probably somebody somewhere would find each one of them
>> useful in time.
>>
>> That doesn't really impact my point about data languages being short
>> in expressive power, though. I doubt any such algorithm or its
>> criteria could be cleanly and succinctly stated in an existing data
>> manipulation language.
>> --
>> Sampo
Date: Sun, 11 Apr 2010 01:18:24 GMT
Message-ID: <Ar9wn.1422$Z6.208_at_edtnps82>
paul c wrote:
> Sampo Syreeni wrote:
>> On Apr 10, 6:58 pm, paul c <toledobythe..._at_oohay.ac> wrote:
>>
>>> An average of averages is generally not equal to an overall average.
>>
>> No, and this gives rise to one of the most annoying statistical
>> paradoxes out there as well: the Simpson-Yule one.
>>
>> Still, we can always guess as to the intention behind the original
>> question, and go from there. Perhaps that means that we would end up
>> with an entire family of algorithms instead of just one. Let's say,
>> variations on a theme. There's no harm in that -- the number would be
>> few, and probably somebody somewhere would find each one of them
>> useful in time.
>>
>> That doesn't really impact my point about data languages being short
>> in expressive power, though. I doubt any such algorithm or its
>> criteria could be cleanly and succinctly stated in an existing data
>> manipulation language.
>> --
>> Sampo
> > I think I agree with that but this doesn't mean I'm inclined that way. > ...
I meant to say I'm not inclined to do anything about it. Received on Sun Apr 11 2010 - 03:18:24 CEST