Hello All, I was trying to get hapmap data from Biomart. but with following code I could not be able to get anything. May I know is there anything wrong in this or alternative way to do this? > library("biomaRt") > myhapmap <- useMart("HapMap_rel27","hm27_variation_ceu") > ceu <- getBM(c("chrom","start","strand","marker1"),filters=c("chrom"), values="chr2",myhapmap) > ceu [1] chrom start strand marker1 <0 rows> (or 0-length row.names) Regards, mlsc [[alternative HTML version deleted]]