[BioC] extract intensity values from .cel using Affy probe ids

Henrik Bengtsson hb at stat.berkeley.edu
Mon Mar 15 16:53:42 CET 2010

See readCelUnits() in the affxparser package for a low-level interface.

See the aroma.affymetrix package [http://www.aroma-project.org/] for a
high-level interface.  I let others comment on alternative
Bioconductor solutions.

FYI, I don't think there is such a thing as a "probe ID" - there are
"probeset IDs" though.


On Mon, Mar 15, 2010 at 4:43 PM, Rinku Saha <rinkusaha at hotmail.com> wrote:
> Hi
>  I just started using Bioconductor for array data analysis .I wanted to ask is there a way that I can extract the  intensity values for a given set of probe ids (affy) from a set of .cel files  and then save these intensity values corresponding to each probe ids as a file.Then I can run normalization on this saved file.
> I would greatly appreciate your help and suggestions.
> Best Regards
> Rinku
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