Dear Adrain, You can see the library agricolae for the functions LSD.test, HSD.test, and Waller.test for Waller-Duncan. The criterion is that LSD is more used for few treatments and HSD for many treatments (more than 5) the test of Waller is Bayes and minimizes the two types of error (I or II). In experiment with clones, we prefer Waller-Duncan.
Felipe de Mendiburu Statistician. International Potato Center Lima-Peru -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Adrian J. Montero Calvo Sent: Monday, July 16, 2007 2:52 AM To: [email protected] Subject: [R] LSD, HSD,... Hi, I'm designing a experiment in order to compare the growing of several clones of a tree specie. It will be a complete randomized block design. How can I decide what model of mean comparision to choose? LSD, HSD,TukeyHSD, Duncan,...? Thanks in advance ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code. ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code.
