Re: [aroma.affymetrix] questiones about annotations for exon arrays: no gene symbol or refseq id for majority of core probe sets?

Hi Yupu. I haven't explored this in any detail, but on a cursory inspection (below), it appears that biomaRt has 244000 probesets represented in its database (which seems about right). bm - getBM (attributes = c (affy_huex_1_0_st_v2 ,hgnc_symbol,chromosome_name,band),mart=mart)

[aroma.affymetrix] questiones about annotations for exon arrays: no gene symbol or refseq id for majority of core probe sets?

Hi, I am new to exon array analysis. I managed to follow the instructions from http://groups.google.com/group/aroma-affymetrix/web/human-exon-array-analysis to get the estimation of transcript: trFit - extractDataFrame(cesTr, units=1:3, addNames=TRUE) Then I followed the following thread's