[R] Anova

[Luis Silva]

Hi,

I have a microarray matrix 3000x70 for example (genes x 
experiments). This data has more than 2 classes. I would like 
to make some filtering on the genes. For example, I would like 
to exclude genes with the same mean expression across all 
classes. This is a problem of ANOVA

H0:mu1=mu2=...=muk
H1: at least one is different

First question: Do you think Anova is reasonable for this?
Second question. How can I do this with R?
Clearly, I'll have to make some loop to apply this operation to 
all the genes.

Thanks

Luis

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