[BioC] Concatenating or merging two or more ExpressionSet objects

Vincent Carey stvjc at channing.harvard.edu
Mon Apr 25 21:08:49 CEST 2011


in principle, the combine method will do it.  to read about it, use

?"combine,eSet,eSet-method"

On Mon, Apr 25, 2011 at 2:59 PM, Richard Leduc <rleduc at glbrc.wisc.edu> wrote:
> Hello All,
>
> I am somewhat new to R and definitely new to Bioconductor,
> so the answer to this may be painfully obvious, but I have failed to find it.
>
> We have a data processing pipeline that creates and analyzes
> microarray data with Bioconductor (no surprise there). The pipeline creates
> ExpressionSet objects that are written to the file system in RData files.
>
> I have been asked to write a block of code that (amongst
> other things) loads two (or more) ExpressionSets from different RData files, checks
> that they have same row names (to validate that they are from the same type of
> array), and concatenate them into one larger expression set. I can get
> everything up to the last step. Is there a simple way to merge two ExpressionSet
> objects?
>
> Thanks,
>
> Rich
> --
> Richard LeDuc
> Associate Scientist/Bioinformaticist
> Great Lakes Bioenergy Research Center
> University of Wisconsin - Madison
> (608) 890-0007
>
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