Thanks to David Scott for noticing a glitch in dup.name(). It should be: dup.name<-function(name) { if(is.character(name)) return(sum(match(objects(1:length(search())),name,nomatch=0)) > 0) cat("Usage: dup.name(name)\n\twhere name is a character string\n") } this avoids matching part of the name... Jim -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._