Tukey's HSD is only appropriate when you are interested in ALL pairwise comparisons between the means. If there are specific contrasts that are of interest a priori, then other methods for controlling the type I error over the family of contrasts are available (e.g. Bonferroni, Holm).
Regards, -Cody Cody Hamilton Edwards Lifesciences -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of hodgess Sent: Thursday, January 03, 2008 8:18 AM To: José Alberto Monteiro; [EMAIL PROTECTED] Subject: Re: [R] tukeyHSD Suppose you have an aov model x.aov Then you can use TukeyHSD(x.aov) to get all pairs. Hope this help! Sincerely, Erin -----Original Message----- From: José Alberto Monteiro [mailto:[EMAIL PROTECTED] Sent: Thursday, January 3, 2008 8:45:35 AM CST To: [EMAIL PROTECTED] Subject: [R] tukeyHSD Does anybody know how to deffine in the test tukeyHSD the pairs of comparison that you want to get? It is throw the lmat commnad, but I don't know the correct usage... Thanks a lot! José -- MSc José Alberto F. Monteiro Botanisches Institut Universität Basel السلام عليكم ______________________________________________ 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. ______________________________________________ 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. ______________________________________________ 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.
