Database Reference
In-Depth Information
this chapter, it is useful to envision how the presented R functionality will be used
in a more comprehensive analysis.
3.1.1 R Graphical User Interfaces
R software uses a command-line interface (CLI) that is similar to the BASH shell
in Linux or the interactive versions of scripting languages such as Python. UNIX
and Linux users can enter command
R
at the terminal prompt to use the CLI. For
Windows installations, R comes with RGui.exe, which provides a basic graphical
user interface (GUI). However, to improve the ease of writing, executing, and
debugging R code, several additional GUIs have been written for R. Popular GUIs
include the R commander [3], Rattle [4], and RStudio [5]. This section presents a
brief overview of RStudio, which was used to build the R examples in this topic.
Figure 3.3
provides a screenshot of the previous R code example executed in
RStudio.
Figure 3.3
RStudio GUI
The four highlighted window panes follow.
•
Scripts:
Serves as an area to write and save R code
•
Workspace:
Lists the datasets and variables in the R environment
•
Plots:
Displays the plots generated by the R code and provides a
straightforward mechanism to export the plots
•
Console:
Provides a history of the executed R code and the output
Additionally, the console pane can be used to obtain help information on R.
Figure
