Well, one place to start is to read the following vignette http://finzi.psych.upenn.edu/R/library/compositions/doc/UsingCompositions.pdf
This was found using the search function RSiteSearch("compositional data") in R. You may also want to study @Article{aitchison82, author = "J. Aitchison", title = "The statistical analysis of compositional data", journal = jrssb, year = 1982, volume = 44, number = 2, pages = "139-177", annote = "With discussion." } @Book{aitchison86, author = "J. Aitchison", title = "The Statistical Annalysis of Compositional Data", publisher = "Chapman and Hall", year = 1986, series = "Monographs on Statistics and Applied Probability", address = "London", annote = "A greatly expanded version of the original 1982 paper, with lots of examples of hypothesis testing" } Med venlig hilsen Frede Aakmann Tøgersen > -----Oprindelig meddelelse----- > Fra: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] På vegne af S.Q. WEN > Sendt: 17. oktober 2006 06:50 > Til: R-help@stat.math.ethz.ch > Emne: [R] About compositional data analysis > > The compositional data xi=(x_i1,x_i2,...,x_in), for each > fixed i , xij>0, > and sum(xij)=1; > > > I want to compare the mean( u_i) of several groups i.e. > H0: u_1=u_2=...=u_N > or > H0: u_11=u_21=...=u_N1 > > Are there any ANOVA tpye tools to do this work in R? > > Thanks, > WEN S Q > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch 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@stat.math.ethz.ch 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.