Hi natus, many thanks for this but a little tweak is needed: help("02AR22") # is showing below [1] "02AR__002"
Where required value is: "02AR__022" Also, please give me a link where I can learn this technique. Regards, Ankur K -- View this message in context: http://r.789695.n4.nabble.com/Regular-Expression-on-Text-tp4730906p4730933.html Sent from the datatable-help mailing list archive at Nabble.com. _______________________________________________ datatable-help mailing list datatable-help@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help