Robert Gentleman <rgentlem at="" fhcrc.org=""> writes: > that is you must also at some point reduce all probes down to a > single representative for each Entrez Gene ID (see the GOstats > vignette for some more details) The non-specific filtering approach that Robert is referring to is in the recently modified GOstats vignette in _devel_. You can download it from this page: http://www.bioconductor.org/packages/1.9/bioc/html/GOstats.html + seth