[R] hgu133plus2hsentrezgprobe library

[Iain Gallagher]

Hi Eleni

Question like this are better served on the bioconductor mailing list.

Nonetheless try this

ALL <- topTable(fit2, coef=1, number=Inf)
ALL$SYMBOL <- unlist(mget(ALL$ID, hgu133plus2hsentrezgSYMBOL, ifnotfound=NA))

Here ALL is the output from limma for differential expression (ALL$ID is the probe on ENTREZ centric cdf from brainarray).

Best

Iain



----- Original Message -----
From: Eleni Christodoulou <elenichri at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Monday, 19 March 2012, 18:47
Subject: [R] hgu133plus2hsentrezgprobe library

Hello R community,

I am processing raw Affymetrix CEL files and I am using the Michigan custom
CDF library hgu133plus2hsentrezgprobe. I have been looking for
documentation on the function that it contains...I am specifically
interested in converting probe names to gene symbols. Does anybody know
where I can find it?

Thank a lot!
Eleni

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