R is an open source statistical software. ( actually not...."Many users think of R as a statistics system. We prefer to think of it of an environment within which statistical techniques are implemented"- the R project). In this blog, I am discussing it as statistical software.

It is basically based on command language interface (not Point and Click). although it has some basic GUI and a GUI package called R commander.

This is based on S language. S plus is commercial version and R is open source (GNU). R is very powerful software because of its flexibility. You can get almost what you want as you can parameterize the functions yourself. This is very good in graphics.

**Where it runs?**

It runs in Unix/ Linux based computers, windows and Mac.

**Where to get it?**

You can get the software from various mirror sites going through http://www.r-project.org/.

It will come with some built in functions and you can always add some packages according to your requirements.

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