ABSTRACT
This chapter deals with downloading and installing the software the user needs, a tour of RStudio and some useful tips, writing the first code, and installing packages that add functionality to R. The R-project home page usually includes information about the latest versions of R. Sys.time is an R function. The function happens to have a period in the function name; that dot doesn’t have any additional significance the way periods do in some other languages. The two RStudio panes on the right become useful as the user creates and runs the code. In the top right pane, one tab shows the R Environment – what objects are loaded into the user session at the moment. The Plots tab is where the user can view graphs and other data visualizations which the user created in R. The Packages tab shows what packages are available for the user to use and actually loaded into the user working session.
