Liaw, Andy <andy_liaw <at> merck.com> writes: > Does anyone know how to test whether a > character can be coerced into numeric without generating a warning?
res <- tryCatch(as.numeric(x), warning = function(x)x) res is now numeric if x was successfully converted and is unchanged if it was not. You can test res using is.numeric and take appropriate action or you can put the action into the body of the warning function such as having it return 0. ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
