Hi all,
I have obtained several GEO Series (GSE) entries from GEO repository using
getGEO function (GEOquery package).
Data obtained in this manner is stored in ExpressionSet class. The problem
is I don't know how to perform quality control analyses and normalization
procedures on ExpressionSet data, because functions like expresso (affy
package) work only on AffyBatch classes. Is there anything I am missing?
And- does anyone know whether data in GEO repository is already normalised
or not?

Thank you for any replies!

Ales Maver
Ales.Maver@gmail.com

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