Re: [R] Lack of independence in anova()

From: Ted Harding <Ted.Harding_at_nessie.mcc.ac.uk>
Date: Thu 07 Jul 2005 - 09:51:54 EST


On 06-Jul-05 Göran Broström wrote:
> On Wed, Jul 06, 2005 at 10:06:45AM -0700, Thomas Lumley wrote:
> (...)

>>  If X, Y, and Z are independent and Z takes on more than one
>> value then X/Z and Y/Z can't be independent.

>
> Not really true. I can produce a counterexample on request
> (admittedly quite trivial though).
>
> Göran Broström

But true if both X and Y have positive probability of being non-zero, n'est-pas?

Tut, tut, Göran!

Ted.



E-Mail: (Ted Harding) <Ted.Harding@nessie.mcc.ac.uk> Fax-to-email: +44 (0)870 094 0861
Date: 07-Jul-05                                       Time: 00:51:24
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