ABSTRACT
R can be downloaded for free from The R Project Web site. People must first choose a CRAN mirror, i.e., one of the many Web sites around the world that keep copies of the R software. A very popular integrated development environment for R, which has many of the same useful feature's as MATLAB's interface, is called RStudio. If people are trying to ease their transition from MATLAB to R, they may seriously want to consider installing and loading the pracma package, as it implements many functions which behave nearly equivalently with MATLAB routines; for information about installing and loading packages. MATLAB is available for all three popular operating systems (Linux, Mac OS-X, and Windows). Depending on operating system, documentation may be available from menus or other items in the user interface.
