Hi, im working on Exon arrays i.e.. [HuEx-1_0-st] Affymetrix Human Exon 1.0 ST Array [transcript (gene) version] - GPL5175. I did RMA with target="core" option using oligo package. i got 22011 probe clusters, which im trying to annotate. Is the procedure correct for normalization ? Which package should i use to annotate this data ? Thanks in advance.