[BioC] How to get platform annotation in ExpressionSet object

Sean Davis seandavi at gmail.com
Mon Sep 28 01:30:28 CEST 2009

On Sun, Sep 27, 2009 at 6:34 PM, Sailu Yellaboina <yellaboinas at gmail.com> wrote:
> Hi Friends
>  Is there a way to get the platform annotation table from ExpressionSet
> object.
> I am using ArrayExpress packages to get the ExpressionSet Objects as
> following.
> #ArrayExpress
> library(ArrayExpress)
> data = getAE("E-MEXP-1422", type = "processed")
> cn = getcolproc(data)
> eset = procset(data, cn[2])
> varLabels(eset)
> featureNames(eset)
> Above  functions varLabels and featureNames retrieve only plotform IDs. How
> I can I get the gene names, Transcripts IDs and other annotation. I
> appreciate your help.

Hi, Sailu.  Does featureData(eset) or fData(eset) give you what you want?


More information about the Bioconductor mailing list