Using R for Introductory Statistics : John Verzani

Appendix B 350Figure B.2 Multi-document windowshowing console, plot window, andhelp pageture, which allows us to record the graphs that are made and play them back using the PGUP and PG DOWN keys. In addition, the plot window has a binding for left mouseclicks, allowing us to save and print the current graphic.B.2 The Mac OS X GUIUsers of Mac OS X can use R as a native application or as an X11 application. As of Rversion 2.0.0, when running R as a native application, a Cocoa GUI is available. Thisconsists of a console window (Figure B.3); a menu bar; a graphical device, quartz (); anda workspace browser. The interface is being actively developed, and may be improvedupon in the future. The screenshots are from a pre-alpha version of a new GUI design forR 2.0.0.The console has icons for a few common tasks, such as halting R during its execution,sourcing a file, opening the graph window, showing the error logs, showing the history,etc.The menu bar contains many of the same items as the Windows menu bar. Inparticular, you can load and install packages (Figure B.4), browse your workspace(Figure B.5, change directories, source files, and access the help system.The quartz () plot device uses anti-aliasing, which gives nice-looking plots andimages. The device also uses the native pdf format of Mac OS X graphics. Bitmap copiesof a graphic can be produced by copying the graphic into the clipboard. Consult the FAQfor more details. The FAQ can be found under the help menu. The quartz () device can beused interactively with identify () and locator (). Use the Esc key to break, as there is noguarantee of a second mouse button. New quartz devices can be opened, and switchingbetween open devices is available using the Window menu.