Compare one level of a factor with *all* other non-missing levels
Peter Ehlers wrote:
Sounds like you want the Dunnett test procedure which seems to be implemented in a number of packages: multcomp, asd, MCPAN and others. It would probably be a good idea to install package 'sos' and learn how to search with it. Peter Ehlers
Thanks for the hints! Unfortunately, Dunnett compares the mean(x) for a factor level with the means(x) of all single K-1 other levels resulting in K-1 comparisions for each level (printed in a lower triangular matrix for the results). Instead, I just want to compare this one mean(x) with one other mean(x) of all the K-1 other levels (printed in a vector of length K for the results). Concerning sos: sounds like a good idea! Cheers, Derik
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