Many thanks for your response. unfortunately, it appears that I'm the closest thing in the vicinity to a local expert (chilling times indeed...), but i will certainly look at the booklist
in terms of the number of data points, we have: two shores, three treatments, three replicates of each treatment (arranged in a randomised block design), Shore A housed 6 species (total of 54 samples) Shore B housed 4 species (total of 36 samples) I do wish to treat each species as a separate comparison, so will look at nlme for more info of how to do this. many thanks again. -- View this message in context: http://r.789695.n4.nabble.com/R-stats-newcomer-help-tp3764819p3765487.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.