[BioC] How to determine genes' presence

Wuming Gong wuming.gong at gmail.com
Sun Jun 26 09:22:29 CEST 2005


I did analysis of some public available microarray data sets
(available as .cel files), then mapped the affymatrix probe IDs to
EnsEMBL ID by EnsMart. I am interested in whether some genes are
present or absent (binary) in given samples. I have a question: if
several different probes reprenting the same gene have the different
P/M/A calls, are there any strategies for determing whether the gene
is present or absent in the sample?


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