These should all be the same, but I tend to choose the Iowa State University link under USA.

Click the CRAN link under Download on the left-hand side of the page.

In the class, I will use RStudio.To install R, navigate your web browser to: You are free to use the editor of your choice. Optionally, there is a number of other text editors, which can be associated with R, e.g. The workaround is to open the original R drawing panel - just type windows () into the console, and new active window will open (you can move it around the screen, or right-click on it by mouse and select “Stay on top” to keep it as the top window always visible on your screen). One thing I found a bit not handy is RStudio's native graphical output - it offers its own unique sizeable graphical output into one of the subpanels (usually the bottom-right one), but it sometimes produces troubles (especially in case when you draw more complex figures). RStudio is a convenient software, which combines R program with text editor and graphical user interface (and offers much more, like organization of scripts and outputs into a projects within single folder, and for advanced users also convenient building of packages, document markup etc.).

If you already have RStudio installed in your computer, please check whether you have the latest version and update if you don't (in RStudio menu, go to Help > Check for Updates). Download the latest version from RStudio website you will need Desktop version, Open Source Edition for your system you may click here to get directly to the selection of actual RStudion version.

Download rstudio mac