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: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] 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]] > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- This message has been scanned for content and viruses by the DIT Information Services MailScanner Service, and is believed to be clean. http://www.dit.ie -- This message has been scanned for content and viruses by the DIT Information Services MailScanner Service, and is believed to be clean. http://www.dit.ie ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html