Thanks David. func() simply prints out the 0010 as a text value. It is still not numeric. I am just curious about it.
> is.numeric(func4(0100)) 00100[1] FALSE -- View this message in context: http://r.789695.n4.nabble.com/convert-1-10-and-100-to-0001-0010-0100-etc-tp2535023p2535345.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ [email protected] 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.

