[BioC] limma - moderated F for one-way anova

[James W. MacDonald]

Hi Karen,

Karen Vranizan wrote:
> How would one get an overall F test (moderated) and p value for a one-way anova with 4 groups?  

After you have fit your model and done the eBayes() step, the resulting 
MArrayLM object will contain the F-statistic and p-value, which can be 
extracted. Say your MArrayLM object is called fit2. Then fit2$F will 
give you the F-stat and fit2$F.p.value will give you the unadjusted p-value.

Best,

Jim


> 
> Karen Vranizan
> Functional Genomics Lab
> 261A Life Sciences Addition
> Mail Code #3200
> UC Berkeley, CA 94720-3200
> 
> Phone: 510-642-7520
> Fax:      510-643-2685
> email: vranizan at berkeley.edu
> 
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-- 
James W. MacDonald, M.S.
Biostatistician
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623


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