janey ding <janeding1 <at> hotmail.com> writes: > Sorry! > > In my experiment, there are two type of soil ( soil F and soil D), each half > of them were subjected to steam sterilize (result in FS and DS soil). A > equal volume of soil from two of the four soil types (F, D, FS, DS) were > mixed as follows: F+F, F+D, F+FS, F+DS, D+F, D+FS, D+DS, FS+DS (eight > treatment). > > Two type of plant (A, B) were planted in the eight treatment of soil in pot. > There were 40 pots divided into 5 groups (8 pots for each group) for each > treatment*plant combination. Finally there were 80 groups for plant A and B > in total. The 40 groups for plant A were randomly arranged in plot 1, and > for plant B in plot 2. > > The experiment were sampled for three times. In each sampling date, one pot > was randomly choosing from each group to measure biomass (80 pot for > sampling date). ...
Looks like a split-block experiment. You should check # 1.6 at the bottom of library\nlme\scripts\Ch01.R, the package nlme, and the book by Pinheiro/ Bates. Dieter ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
