Introductory Slides for R - Statistics

PackagesAside from your own extensions of R via functions there are numerous packagesof functions that were contributed by others.A frivolous example: click on Packages on the tool bar of an R session and selectInstall Package(s). Select USA (WA) under the offered CRAN mirror sites.Under the offered packages list scroll down to sudoku and select it for installation.After it is installed you still need to invoke library(sudoku) on the command linefor each new R session in order to have access to the sudoku functions.To see the functions available in this package look under sudoku in the packagessection of the web help initiated by help.start(). Or use ?playSudoku.To play, type playSudoku(). The command window gives cryptic instructions,to be carried out on graphics window (console is inactive until you quit the game).48