[R] Split-split plot ANOVA

[Jesus Frias]

Hi Mike,

	*An example of the use of aov() for a split-plot is in MASS

library(MASS)
example(Oats)
	The book also gives a detailed explanation

	*pp 45-52 of the Pinheiro and Bates book gives you an example of the use of
lme() on a split-plot. If you have a non balanced design,  lme() from the
nlme library might be a better tool than aov().

	Also, if you have the lme4 library installed you'll have a lot more
flexibility on the formulation of your random effects.

regards,

Jesus

--------------------------------------------------------------
Jesús María Frías Celayeta
School of Food Sci. and Env. Health.
Faculty of Tourism and Food
Dublin Institute of Technology
Cathal Brugha St., Dublin 1. Ireland
t +353 1 4024459 f +353 1 4024495
w www.dit.ie/DIT/tourismfood/science/staff/frias.html
--------------------------------------------------------------

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Mike Saunders
> Sent: 01 February 2005 14:36
> To: R Help
> Subject: [R] Split-split plot ANOVA
>
>
> Does someone out there have an example of R-code for a
> split-split plot ANOVA using aov or another function?  The design
> is not balanced.  I never set up one in R before and it would be
> nice to see an example before I tackle a very complex design I
> have to model.
>
> Thanks,
> Mike
>
> Mike Saunders
> Research Assistant
> Forest Ecosystem Research Program
> Department of Forest Ecosystem Sciences
> University of Maine
> Orono, ME  04469
> 207-581-2763 (O)
> 207-581-4257 (F)
>
> 	[[alternative HTML version deleted]]
>
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