HI Sarah, thanks for reply your method works
what I did load (" data.2005") load ( "data.2006") then data.new<- c( data.2005, data.2006) or we can save it as a new .RData also. The NULL files I can remove by selecting particular file number e.g data.new<- c( data.2005[1:3], data.2006[4:6]) cheers Uday -- View this message in context: http://r.789695.n4.nabble.com/add-data-from-RData-file-tp4453981p4454461.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.