What is R language ?

 R is a statistical computing language and used widely among professionals all over the world.  R also can be used for everyone without any fee, although it has incredible functions in it!  Please watch this short movie.

How can we download R language?

First, please go to the R-project site and download R into your PC.   This short movie shows how to do that. (It is recommended to look at it by 720pHD resolution)

HOW CAN WE use R LANGUAGE?

Once finish download R,  you can install it by just following instructions.  When you finish installing, you can use R-console which is used in statistical computing. Please look at this movie. (It is recommended to look at it by 720pHD resolution)

How can we do A LITTLE math with R  ?

Please open R,  input numbers/formulas below to console of R ,  press enter key and obtain the answer.  The correct answer is in the last line of this page.

1.   What is (35-15)/10 ?

2.   x=63,  y=7,   what is x/y ?

3.   x=40, y=8, z=5, what is (x/y)+2*z?

How can we calculate statistics with R?  

If you want to learn R deeper,  I recommend interactive tutorial "DataCamp".  It is also free! 

If you need manual about R, please go to "An introduction to R" in The R project.

R: A language and environment for statistical computing.  R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-90005107-0  URL  http://www.R-project.org

Answer 

1.       2 

2.      9

3.     15