[BioC] methylumi

Paul Sanfilippo prseye at gmail.com
Fri Jan 15 04:45:54 CET 2010

Dear List,

I'm attempting my first microarray analysis on a methylation dataset 
(Illumina Infinium) comprising identical twins (24 -> 12 per array). I 
thought I'd try the methylumi package - I can import the data, but when 
I try to Normalise between the two arrays I get an error:

 > normalizeMethyLumiSet(meth)
Error in function (classes, fdef, mtable)  :
   unable to find an inherited method for function "QCdata<-", for 
signature "MethyLumiSet", "NULL"

According to the vignette, QCdata is not required.

I know some basics but am not an expert in R.

Any help would be appreciated.

Thank you.

Paul Sanfilippo

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