> dat <- data.frame(environment = c("RStudio", "Atom", "none", "RStudio", "Emacs", "RStudio", "RStudio",
+                                   "RStudio", "Emacs", "RStudio", "Atom", "RStudio", "RStudio"))
> plot(dat$environment)
> ggplot(dat, aes(x = environment)) + geom_bar()