A Installation of R and RStudio

This is what you have to do in order to install R and RStudio in your own computer:

1. In Mac OS X, download and install first XQuartz and log out and back on your Mac OS X account (this is an important step that is required for 3D graphics to work). Be sure that your Mac OS X system is up-to-date.
2. Download the latest version of R at https://cran.r-project.org/. For Windows, you can download it directly here. For Mac OS X you can download the latest version (at the time of writing this, 3.4.1) here.
3. Install R. In Windows, be sure to select the 'Startup options' and then choose 'SDI' in the 'Display Mode' options. Leave the rest of installation options as default.
4. Download the latest version of RStudio for your system at https://www.rstudio.com/products/rstudio/download/#download and install it.

If there is any Linux user, kindly follow the corresponding instructions here for installing R, download RStudio (only certain Ubuntu and Fedora versions are supported), and install it using your package manager.