Evan, are you really looking at numbers, or just at character strings (that, in your case, happen to be numbers)? if just characters, this rather odd combination of strsplit() and Reduce() might do the trick: ---- > x <- '10110111' > print(x) [1] "10110111" > y <- Reduce(function (x,y) { paste(x, y, sep=".") }, unlist(strsplit(x, "")), > init="", right=TRUE) > print(y) [1] "1.0.1.1.0.1.1.1." ----
cheers. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.