Here are a few additional questions from Carlyn using the data.table package. These aren't part of the assignment, just some extra practice in case you're feeling like you really want some more programming in your life. (And who doesn't?)
Remember you have to use the library() function every time you start a new R session in order to load the package you want to use.
Remember you have to use the library() function every time you start a new R session in order to load the package you want to use.