Thought I had it figured out…went into R and found the ggplot2. I was then able to find it in the library, but when I tried to View(mpg), I received the following message:
> library(ggplot2)
Error: package or namespace load failed for ‘ggplot2’ in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]):
there is no package called ‘gtable’