[bioC] GenePlotter for mgu74v2

[John Zhang]

After loading the data package for mgu74a, ls(mgu74aCHRLOC) will list all the 
probe ids, get("aProbeId", mgu74aCHRLOC) will get you the chromosomal location 
for "aProbeId", and multiget("probeIds", mgu74aCHRLOC) will return a list 
containing chromosomal location data for "probeIds". Chromosomal locations are 
named by the chromosome number.

Built in information about data packages can be obtained by typing  
packageName(), ?packageName, and ?dataSetName (e.g. mgu74a(), ?mgu74a, and 
?mgu74aCHRLOC) after loading a data package.

>Date: Mon, 28 Apr 2003 17:24:26 -0700 (PDT)
>From: Jeffrey Rasmussen <rasmuss at u.washington.edu>
>To: bioconductor at stat.math.ethz.ch
>Subject: [bioC] GenePlotter for mgu74v2
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>Hi.
>
>Has anyone used the GenePlotter package on the mgu74Av2 affymetrix array?
>I have been unable to figure out how to extract the chromosomal
>location for the probesets from the data package for the u74 chip. Is this
>information built into that data package? If not, could someone please
>point me to how one might go about compiling the required data?
>
>Thanks!
>Jeff.
>
>__________________________________
>Jeffrey Rasmussen
>Research Consultant, Bioinformatics
>Department of Immunology
>University of Washington
>
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Jianhua Zhang
Department of Biostatistics
Dana-Farber Cancer Institute
44 Binney Street
Boston, MA 02115-6084