Today is the second practical about using dplyr.

To access the problems, there will be another R Markdown document for you to work through. Once again you’ll be filling the answers into the chunks. All the problems have example output. Take a look at the example output to help you work through the problem. Try things out, see what happens, and eventually you’ll get it right!

Good luck!

You can download the document here: Download practical_09.Rmd