A Installation of R and RStudio
You can follow these steps to install R and Rstudio, please note that there will be a few new releases of R every year, and you may want to upgrade R occasionally.
For Ubuntu users, kindly follow the corresponding instructions here.
For Mac OS X users download
Rfrom here or from the url below. To this end, click on Download R for Mac OS X. Then click on Download R-3.4.2.pkg (or a newer version) and install it. Leave all default settings in the installation options. Optional for some graphic experiences, download and installXQuartz.
Once installed R, you can download RStudio IDE from here or from the url below. You must choose the appropriate version to your operative system and hardware (only certain Ubuntu and Fedora versions are supported), and install it using the package manager.