I'm looking for an R package that has the Illumina Infinium 450K probes annotated to Ensembl IDs.
If I want to do this, here is the approach: using IlluminaHumanMethylation450kanno.ilmn12.hg19 to get genes (by gene symbol) , then use biomaRt to get associated ENS ID.
Thanks a lot Hamid.
Maybe also useful to note that from your hint I got to this package:
which annotates EPIC Array, and has 2 useful columns: probes that are from 450k array, and ENST annotation.
Although not all 450K array probes are in EPIC, but this covers the vast majority of them.
EPIC= EPIC[rownames(EPIC) %in% rownames(450kAnn),]