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1.2.1.1 R and RStudio
This is for those who only need R and RStudio others should see the full explanation in 1.2.1.
R is a great program with lots of flexibility. It can be used as a standalone programing environment; however, for big projects or when you're learning R, it is best to use it with RStudio. R is still the engine that drives all of the processing and RStudio is mainly the organizational structure with which you interact in order to keep track of all of your work.
Visit the CRAN site to download R from a nearby server. Under Download and Install R, you will select your operating system (linux, MacOS, or Windows). This is where your selections change slightly.
MacOS: We recommend the latest stable release of R that is compatible with your computer and operating system version. Please note that there are now different versions for Intel processors and Apple silicon processors. This will be in a .pkg file that you will download and open. You may have to change your security settings under system preferences, security and privacy, to open the download.
Windows: The next screen provides a few options. Select base for the first time installation. On the next screen, select the top choice, Download RX.X.X for Windows to begin the download of your executable .exe file. Open this file to complete the installation. You may also have to confirm that your download if your computer or browser attempts to prevent the download.
For both systems, it is recommended that you proceed with the default options for all of the installation questions. Please try to avoid any installation to OneDrive; this has caused problems in the past.
Visit the RStudio download page (under products) to download the program installer for your operating system. We will use the free RStudio Desktop IDE. MacOS users should download a disk image .dmg file and Windows users should download an executable .exe file. Again, follow the prompts for installation and accept the default options.