To clarify: my question is not about "who could I exclude NAs from being counted" - I know how to do that. My question is: Why na.rm = T is not working for geom_bar in this case?
On Thu, Jul 27, 2017 at 8:24 AM, Dimitri Liakhovitski < dimitri.liakhovit...@gmail.com> wrote: > Hello! > > I am trying to understand how ggplot2's geom_bar treats NAs. > The help file says: > > library(ggplot2) > ?geom_bar > na.rm: If FALSE, the default, missing values are removed with a warning. > If TRUE, missing values are silently removed. > > I am trying it out: > md <- data.frame(a = c(letters[1:5], letters[1:4], letters[1:3], rep(NA, > 3))) > str(md); levels(md$a) > > ggplot(data = md, mapping = aes(x = a)) + > geom_bar(na.rm = F) > It runs without warnings and generates counts for each factor level AS > WELL AS the NAs. Makes sense. > > Now, I don't want the NAs to be counted. So, I run: > ggplot(data = md, mapping = aes(x = a)) + > geom_bar(na.rm = T) > > But I still have NAs in the picture. Why? > What am I missing? > > Thank you! > -- > Dimitri Liakhovitski > -- Dimitri Liakhovitski [[alternative HTML version deleted]] ______________________________________________ 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.