how to split the delimiter? -- output of sessionInfo(): > head(selExpr,20) GSM921888 GSM921889 OR4F17///OR4F5///OR4F4 24.3536 24.6945 LOC100134822///LINC00266-1 2004.2300 1959.5600 OR4F29///OR4F21///OR4F16///OR4F3 40.3611 42.6291 -- Sent via the guest posting facility at bioconductor.org.