[BioC] Partial F-test using LIMMA

[David Henderson]

Without hacking into the code behind LIMMA, is there a way to perform
partial F-tests for groups of variables outside of creating complicated
contrast matrices?  I have an experiment involving fixed time points
where the researcher would like to test these two hypotheses: H0_1: Is
any one of the early time points different from the other early time
points; and H0_2: Is any one of the late time points different from the
other late time points.  It should be obvious that this is best attacked
using a partial F, but how to implement this in LIMMA??

Thanks!!

Dave H

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-- 
David A. Henderson, Ph.D.
Assistant Professor of Animal Genetics, CALS
Assistant Professor of Biostatistics, AZCOPH
Member, The Bio5 Institute http://www.bio5.org
231 Shantz Building
Department of Animal Sciences
The University of Arizona
Tucson, AZ 85721
Phone: (520)626-8903
Fax: (520)621-9435
DNADave at U.Arizona.Edu
http://dnadave.cals.arizona.edu/