Stop with a user friendly message if a user is missing the ggplot2 package or has an old version of it.
Stop with a user friendly message if a user is missing the ggplot2 package or has an old version of it.
.check_for_ggplot2(version = "3.0.0")
version |
minimal required ggplot2 version |
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.