Dear Marco: Look in "agricolae" package.
There is a Friedman test with and without replicates. In this package is used the Conover's book as a reference. Greetings, Dr. D. José Trujillo Carmona Dpt. of Mathematics Fac. of Science of Badajoz Univ. of Extremadura Spain From: Marco Chiarandini <machud_at_intellektik.informatik.tu-darmstadt.de <mailto:machud_at_intellektik.informatik.tu-darmstadt.de?Subject=Re:%20%5BR%5D%20Friedman%20test%20for%20replicated%20blocked%20data>> Date: Tue 14 Dec 2004 - 04:20:51 EST Hi, I would need to extend the Friedman test to a replicated design. Currently the function: friedman.test(y, ...) only works for unreplicated designs. I found in Conover 1999 "Practical Nonparamteric statistics" an extension of the formula to my case. Nevertheless, other sources, like Sheskin 2000 "Parametric and Nonparametric statistical Procedures" and Daniel 1990 "Applied nonparametric statistics" give a different formula from that of Conover in the unreplicated case. Since they do not provide the extension of this formula to the replicated case I would like to know if someone could give me a reference where I could find such extension. The formula is indeed very simple: F= z \sqrt{bk(k+1)/6} where z is a quantile from the normal distribution, b the number of blocks and k the number of treatments. Unfortunately, the sources cited do not provide indications from where the formula comes from. Thank you for consideration, Greetings, Marco ------------------------------------------------------------------------ Marco Chiarandini, Technische Universitaet Darmstadt [[alternative HTML version deleted]]
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