I have difficulties in interpreting high order interaction terms in high-way ANOVA.
According to Introductory Statistics with R by Peter Dalgaard (Section 12.5), "The exact definition of the interaction terms and the interpretation of their associated regression coefficients can be elusive. Some peculiar things happen if an interaction term is present but one or more of the main effects are missing. The full details are probably best revealed through experimentation." However, I do want to understand the full details. I have checked a few books, but I haven't found a book that describes high order interactions in a satisfactory way. Besides learning interactions through experimentation, could somebody let me know if there are any detailed documentation on interactions? ______________________________________________ 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.
