Re: [R] Compare one level of a factor with *all* other non-missing levels

2010-12-10 Thread deriK2000
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 > > Thank

[R] Compare one level of a factor with *all* other non-missing levels

2010-12-10 Thread deriK2000
Dear list, I try to compare the mean of a variable given a value of a factor with the mean of the same variable for all K-1 other non-missing values of this factor. This procedure I want to repeat for each level of the factor. Having read the recommendations of this list I want to avoid creating

Re: [R] cluster analysis: predefined clusters

2010-12-01 Thread deriK2000
Peter Langfelder wrote: > > On Fri, Nov 26, 2010 at 6:55 AM, Derik Burgert wrote: >> Dear list, >> >> running a hierachical cluster analysis I want to define a number of >> objects that build a cluster already. In other words: I want to force >> some of the cases to be in the same cluster from