Dear all,

I am currently doing a meta analysis of microarray data. I first gather few
groups of data from GEO that have their raw .CEL data, and then I found out
that one group of data does not have the .CEL as raw data, but instead it
has the TXT format data (the TXT format, they call it the Series Matrix
files in GEO).

I am just wondering if anyone know how could I do the analysis on this type
of data (please point me to the right function or package). The original
plan I had is to use justGCRMA() to background corrected and normalized all
the data, then do the analysis on each group of the data, and compare each
of the group result. However, I am kind of facing this difficulty as this
.TXT data could not be converted back to the .CEL format, and I have to
think of a standard way to treat (normalize, background corrected) all the
groups equally.....

I greatly appreciate for any idea.

-- 
Lam C. Tsoi (Alex)
Medical University of South Carolina

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