The statistical analysis and data mining package R is given its single letter name quite difficult to find help for in Google.

## What is R

R is an open source programming language and software environment for statistical computing and graphics. The R language is widely used among statisticians for developing statistical software and data analysis.

## How to Install R

```
sudo apt-get install r-base
```

## How to use R

You can start R simply typing R (case sensitive) on your command line x2q@x2q:~$ R

### Examples

```
> 2+2
[1] 4
> x <- c(1,2,3,4,5,6)
> print(x)
[1] 1 2 3 4 5 6
> y <- x^2
> print(y)
[1] 1 4 9 16 25 36
> mean(y)
[1] 15.16667
> summary(x)
Min. 1st Qu. Median Mean 3rd Qu. Max.
1.00 2.25 3.50 3.50 4.75 6.00
> summary(y)
Min. 1st Qu. Median Mean 3rd Qu. Max.
1.00 5.25 12.50 15.17 22.75 36.00
```