Exercise

Connect to a workbook

When working with XLConnect, the first step will be to load a workbook in your R session with loadWorkbook(); this function will build a "bridge" between your Excel file and your R session.

In this and the following exercises, you will continue to work with urbanpop.xlsx (view), containing urban population data throughout time. The Excel file is available in your current working directory.

Instructions

100 XP

Load the XLConnect package using library(); it is already installed on DataCamp's servers.
Use loadWorkbook() to build a connection to the "urbanpop.xlsx" file in R. Call the workbook my_book.
Print out the class of my_book. What does this tell you?