[BioC] Chromosome number and coordinates on genome

Sean Davis sdavis2 at mail.nih.gov
Thu Nov 11 02:13:24 CET 2004


On Nov 10, 2004, at 8:08 PM, S Peri wrote:

> Apologies, if my question is not clear. I am analyzing
> microarray data both from Affymetrix and cDNA arrays.
> I am interested to get the chromosome number,
> coordinates of the gene on the chromosome for all the
> probesets from affy. If I can get this information
> from bioconductor packages it is a good time saving
> help, otherwise I have to parse from annotation files
> from netaffx site.

See:

http://www.bioconductor.org/data/metaData.html

You probably want to look at the documentation for the "annotate" 
package, also, as that allows you to access the annotation data.

Sean



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