[BioC] Probe Cell

James MacDonald jmacdon at med.umich.edu
Wed Nov 12 16:28:09 MET 2003


I think you are looking for xy2indices.

HTH,

Jim



James W. MacDonald
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623

>>> s0uchi02 <s0uchi02 at louisville.edu> 11/12/03 09:45AM >>>
Hello.  I am using "affy" to process HG_U95Av2 chip.  I want to know
how 
each spot (probe cell) is aligned on a chip.  When I read in a data
using 
(Data <- ReadAffy( )) and write out to a file, each spot is numbered
from 1 to 
409600.  How can I determine probe cells and their corresponding probe
pairs 
and probe sets from this file?  Is there a list that corresponds to
these spot 
numbers?  I also would like to find out which probe is aligned on which
probe 
cell.  Thank you.

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