Re: Pearson-r in SQL

From: Mikito Harakiri <mikharakiri_at_iahu.com>
Date: Thu, 23 Dec 2004 16:45:54 -0800
Message-ID: <qQJyd.43$ej3.65_at_news.oracle.com>


"Matthias Klaey" <mpky_at_hotmail.com> wrote in message news:f6oms0heulhqar17hlfnbgqhdpgaj0s6bs_at_4ax.com...
> On Thu, 23 Dec 2004 15:00:51 -0800, Gene Wirchenko
> <genew_at_mail.ocis.net> wrote:
> > I would toss it. It is not valid data.
>
> What if the cost of getting one measurement was, say 37000 Dollars?
> Even if you could get only the x result and not the desired (x, y)
> pair, due to some experimental mishap?

What the cost has to do with mathematical definitions?

The values

(3kg, NULL)
(5kg, NULL)
(7kg, NULL)
(NULL, 1m)
(NULL, 2m)
(NULL, 3m)
(NULL, 4m)

are orthogonal. There is no corellation is this data set whatsoever. Received on Fri Dec 24 2004 - 01:45:54 CET

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