Dear list members, I have a question concerning multiple comparisons after using glm.
My response variable is days until emergence of an insect species. The explanatory variables are sex (two levels), parasitoids added (two levels) and populations (34 levels). I would like to know now which populations are different in days until insect emergence. For this I used multiple comparisons as followed: model<-glm( daysuntilemergence ~ sex + parasitoidsadded + population, quasipoisson ) glht(model, linfct = mcp(population = "Tukey")) summary (glht(model, linfct = mcp(population = "Tukey")) ) I am not sure now if the obtained p-values are for differences in days until emergence for the bean populations or if also the other factors : "sex "and "parasitoidsadded" are taken into account? Thank you for answering! Isabelle Zaugg, PhD Student University of Fribourg Department of Biology Unit of Ecology & Evolution Chemin du Musée 10 CH-1700 Fribourg Switzerland Phone: +41 (0)26 300 88 67 E-mail: isabelle.za...@unifr.ch<mailto:isabelle.za...@unifr.ch> [[alternative HTML version deleted]]
______________________________________________ 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.
