Hello all.

 

I have a set of chips using affymetrix platform.  Some of the chips are
from U133A and U133B and the others are plus2 chips.  As I understand,
all the probesets in U133A and U133B are included in plus2 chips.  The
question now is how I can normalize the cel files from 2 or 3 platforms.
I saw people have used MAS-5 output with a common scaling factor, for
example 500, for all platforms.  Is there a better way than that?  

 

Thanks in advance!

 

A.G. Lee


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