[R] How to get Greenhouse-Geisser epsilons from anova?

John Fox jfox at mcmaster.ca
Wed Dec 10 17:18:58 CET 2008

Dear Nils,

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
> Behalf Of Skotara
> Sent: December-10-08 9:22 AM
> To: Peter Dalgaard
> Cc: r-help at r-project.org; John Fox
> Subject: Re: [R] How to get Greenhouse-Geisser epsilons from anova?
> Dear John,
> thank you for the kind offer!
> Sorry, I just made a mistake anywhere I can not trace back, now it works
> as you described it. Thank you again!

There are often many ways of doing something right, and infinitely many of
getting it wrong, so without specific information it's hard to know what
happened. Anyway, I'm glad that things are now working normally.


> Dear Peter,
> thank you for the information, I did not know about the quotation marks.
> It indeed works using "G-G Pr"!
> The SPSS and R output for the epsilons differ exactly by N/(N-(k-1)). So
> I think it must be the mentioned bug.
> I wish you merry christmas!
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