On Wed, November 9, 2005 14:38, Peter Dalgaard wrote: > Prof Brian Ripley <[EMAIL PROTECTED]> writes: > >> A multistratum aov() fit is just a list of aov() fits, so you can apply >> functions such as Anova to the individual strata. >> >> However, why do you want types II and III sums of squares? It is usual >> to do this type of analysis only with balanced designs. In the cases I >> can envisage that these make any sense, they are the same as type I >> (and in cases with only one treatment effect, they always are). > > > I was about to make a similar comment. A possible exception is ANCOVA > where you likely want to test both the within-stratum effect of a > covariate and the effect of design factors adjusted for the covariate.
May I offer a more mundane reason for asking for Type II and PRIMARILY Type III SS? The editor of that particular journal who is hooked on a specific type of software and knows only about what he/she gets from the software? Sincerely, Ioannis -- Ioannis C. Dimakos University of Patras Department of Elementary Education Patras, GR-26500 GREECE http://www.elemedu.upatras.gr/dimakos/ http://yannishome.port5.com/ ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
