[R] Compare one level of a factor with *all* other non-missing levels
deriK2000
derik2000 at yahoo.de
Fri Dec 10 14:58:30 CET 2010
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
--
View this message in context: http://r.789695.n4.nabble.com/Compare-one-level-of-a-factor-with-all-other-non-missing-levels-tp3081777p3082005.html
Sent from the R help mailing list archive at Nabble.com.
More information about the R-help
mailing list