R is a programming language and development environment, designed primarily for performing statistical analyses. The language is a dialect of the S language (with SchemeLanguage style lexical scoping).
Useful pages:
- Homepage - http://www.r-project.org/
- GUI download - http://cran.r-project.org/bin
- R help wiki - http://wiki.r-project.org/rwiki/doku.php
- R help mailing list archive - http://tolstoy.newcastle.edu.au/R/
- R search engines (because Googling 'R' is a mess) - http://www.rseek.org/ - http://www.dangoldstein.com/search_r.html - http://finzi.psych.upenn.edu/search.html
- R graph gallery - http://addictedtor.free.fr/graphiques/
Hello world in R:
"Hello World!"
or, explicitly calling print
print("Hello World!")
or, avoiding excess formatting
cat("Hello World!\n")
or even
message("Hello World!")
Something Else Neat in R
> 9999999999999999999999999999999999999999999999999999999999999999999+1
[1] 1e+67
>
And
> 1:6+4:9
[1] 5 7 9 11 13 15
>