[BioC] how to separate probe numbers from AffyIDs?
Laurent Gautier
laurent at cbs.dtu.dk
Tue Jul 15 19:28:36 MEST 2003
I am not sure I get the whole, but I getting "ProbeSet" objects
might be want you want (method 'probeset' for 'AffyBatch').
Hopin' it helps,
L.
On Tue, Jul 15, 2003 at 11:15:30AM -0500, Jenny Drnevich wrote:
> Hello,
>
> I've been using Bioconductor to do the background correction and
> normalization of my data, but I want to use the probe values themselves
> instead of a summary value for my statistical analyses. I am able to export
> the matrix of pm values, but the first column lists the AffyID and probe
> number together (e.g., 100_g_at1, 100_g_at2, 100_g_at3, etc.). Is there an
> easy way to separate these? I need two columns: one with just the AffyID
> (100_g_at) and one with the probe number (1, 2, 3, etc.). I don't need
> these two columns in the pm matrix I export, because I can combine the two
> in SAS.
>
> Thanks in advance,
> Jenny
>
> Jenny Drnevich, Ph.D.
> Department of Animal Biology
> 515 Morrill Hall
> 505 S Goodwin Ave
> Urbana, IL 61801
> USA
>
> ph: 217-244-6826
> fax: 217-244-4565
> e-mail: drnevich at uiuc.edu
>
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Laurent Gautier CBS, Building 208, DTU
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