[BioC] time course experiment

[Gordon K Smyth]

Dear Xiayu,

I don't quite see the problem.  It all seems straightforward.  All the 
contrasts you have proposed seem simple and sensible.  There is no need 
nor possible advantage in subsetting the data.

Best wishes
Gordon

PS. I haven't included you original post in my reply because there were so 
many non-standard characters imbedded in it.

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