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Marcus
Birkenkrahe
I'm using the startup screen of the interactive R console to talk about the shell and command-line interfaces, about R versions, copyright, citing R and the help function. This is the second lecture to get started with R - why R, how to get it, how to install it, how to start it, how to get help, how to close it down, how to install packages (and what they are), and the R working environment. Source for the "Sudo sandwich" cartoon: https://xkcd.com/149/. Check out https://www.gnu.org/software/ for more information on GNU software.
