Suppose I have a vector of strings. I'd like to convert this to a vector of numbers if possible. How can I tell if it is possible?
as.numeric() will issue a warning if it fails. Do I need to trap this warning? If so, how? In other words, my end goal is a function that takes a vector of strings and returns either a numeric vector or the original vector. Assuming this doesn't already exist, then to write it I'd need a function that returns true if its input can be converted to numeric and false otherwise. Any suggestions will be appreciated. -- View this message in context: http://www.nabble.com/how-to-tell-if-as.numeric-succeeds--tp23874936p23874936.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.
