On Tue, 13 May 2014, Zbigniew Ziembik wrote: > or (commercial): > Aitchison, J. 2003. The Statistical Analysis of Compositional Data. The > Blackburn Press. There's also: Analyzing Compositional Data with R by van den Boogaart, K. Gerald,Tolosana-Delgado, Raimon. Published by Springer in their UseR! series. Rich