I used "pd.ragene.1.0.st.v1" to perform a microarray analysis of Affymetrix Rat Gene 1.0ST. Now I need annotation data of the array, then I try this: probe_ids <- rat$ID gene_symbols <- aafSymbol(probe_ids, "pd.ragene.1.0.st.v1.db") go_categories <- aafGO(probe_ids, "pd.ragene.1.0.st.v1.db") genbank_accessions <- aafGenBank(probe_ids, "pd.ragene.1.0.st.v1.db") but this does not work because the file .db does not exist. How can I get the annotation data? Thanks, Germán [[alternative HTML version deleted]]

Dear German, I believe you need the ragene10stprobeset.db package. b On Oct 12, 2009, at 4:13 AM, Germ?n Gonz?lez wrote: > I used "pd.ragene.1.0.st.v1" to perform a microarray analysis of > Affymetrix Rat Gene 1.0ST. Now I need annotation data of the array, > then I try this: > > probe_ids <- rat$ID > gene_symbols <- aafSymbol(probe_ids, "pd.ragene.1.0.st.v1.db") > go_categories <- aafGO(probe_ids, "pd.ragene.1.0.st.v1.db") > genbank_accessions <- aafGenBank(probe_ids, "pd.ragene.1.0.st.v1.db") > > but this does not work because the file .db does not exist. How can > I get the annotation data? > > Thanks, Germ?n > > [[alternative HTML version deleted]] > > <att00001.txt>