Dear All,
In R, is there a way (or a function) I can quickly check whether all the NA values in one new created numerical variable happened are because of or something else in the original dataset? And how can we easily group these NAs separately based on different reason (e.g. some NA are because of , some are because of there are extra text inside, etc). Thanks heaps. Rene. [[alternative HTML version deleted]] ______________________________________________ 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.