R Installation For Windows:

 Step 1:

Go to the site R-project.org

Step 2:

Click Download R

 Step 3:

http://ftp.iitm.ac.in/cran/

Step 4:

Download R For Windows

Step 5:

install R for the first time

step 6:

Download R 3.3.1 for Windows

After Completion of the  Download install it.

Step 7:

Example:

Assign a variable to 15.

 > a <- 15

 display the value of the variable

 > a

Check the Data type of the variable

> class(a)

Check if the variable is integer or numeric

> is.integer(a)

> FALSE

Assign the variable Data type into integer

a=as.integer(15)

R Installation For Ubuntu:

Step 1:

open the terminal and enter the following command:

sudo apt-get update

 Step 2:

After finishing the update run the following command:

sudo apt-get install r-base

Step 3:

After that Enter R to the command prompt.