====== R Wiki - Overview ======

{{ r:rlogo.jpg}}

[[http://www.r-project.org|R]] is a free software environment for statistical computing and graphics. It runs on a wide variety of UNIX platforms, Windows and MacOS. This R Wiki is dedicated to the collaborative writing of R documentation.

// For information on browsers, RSS syndication, copyright, ... read [[wiki:usage]].//

<note important>
R comes with several **[[http://cran.r-project.org/manuals.html|official manuals]]** and **[[http://cran.r-project.org/faqs.html|FAQs]]**. These should be your **primary source of information**. Note also that the main location for general questions about R is the **[[http://www.r-project.org/mail.html|R-Help mailing list]]** (but please make sure to read the [[http://www.r-project.org/posting-guide.html|posting guide]] before posting a question there!). Finally, **[[http://cran.r-project.org/doc/Rnews/|R News]]** is a newsletter dedicated to R.
</note>










===== Table of contents =====
//(click on an item to expand)//

++++ Getting started | 
Do you want to know what R is, or do you want to start using it?

  * **[[getting-started:what-is-r:what-is-r|What is R?]]** -- A short explanation and a few examples of R's potential
  * **[[getting-started:case-studies:case-studies|Case studies]]** -- People explain how and why they started to use R
  * **[[getting-started:installation:installation|Installation]]** -- All you need to know to install R and additional R packages
  * **[[getting-started:reference-cards:reference-cards|Reference cards]]** -- Brief overviews of tasks and associated commands
  * **[[getting-started:translations:translations|Translations]]** (computer) -- To and from other statistics packages and computer languages: [[getting-started:translations:sas2r|SAS]], [[getting-started:translations:octave2r|Octave]], [[getting-started:translations:stata2r|Stata]], [[getting-started:translations:splus2r|S-Plus]], [[getting-started:translations:spss2r|SPSS]], ...
  * **[[getting-started:international:international|Internationalization]]** -- R in other languages
  * **[[getting-started:faq:faq|FAQ]]** -- Frequently Asked Questions
++++

++++ Guides | 
**[[guides:guides|Long documents]] introducing R**, demonstrating particular kinds of analyses, or describing how R is used in particular fields.

  * **Books** -- Textbooks or book-length treatments
  * **Demonstrations** -- Extended examples of how R works
  * **Tutorials** -- Guided tours
  * Plus presentations organized by task (data manipulation, statistics, graphics, programming, ...) and by field (psychology, bioinformatics, ...)
++++

++++ Student Section |
**A section created by and for statistics students, of all levels.**

  * **[[Textbook Examples]]** -- Examples from standard textbooks used in various areas of statistics, worked out using R.

  * **[[http://courses.statistics.com/software/R/Rhome.htm|statistics.com]]** -- First year statistics in R from statistics.com. 
++++

++++ Tips & Tricks | 
**A large compendium of [[tips:tips|short pages]]** describing details of how particular commands can be used and giving examples of useful code.

  * **[[tips:tips#Data|Data]]**: Getting data in and out of R; R's data structures; data manipulation
  * **[[tips:tips#Statistics|Statistics]]**: Statistical analysis of data; tests and models
  * **[[tips:tips#Graphics|Graphics]]**: Plotting data, results of statistical analyses, checking model assumptions, etc.
  * **[[tips:tips#Classes & Objects|Classes & Objects]]**: The two different systems for object-oriented programming in R
  * **[[tips:tips#Using and extending the R environment|Using and extending the R environment]]**: packages, workspaces, programming, CLI, GUI and platform-specific stuff 
  * **[[tips:tips#Other|Other]]**: Surprises and traps for the unwary, EasieR (various useful functions) and miscellaneous tips
++++

++++ Links | 
Other resources on the web, books about R, ...
  * **[[links:links|Web R resources]]**
  * **[[links:other-rwikis|Other R Wikis]]**
  * **[[links:books|Books about R]]**
++++

++++ R graphs, packages and documentation | 
  * **[[graph_gallery:graph_gallery|R Graph Gallery]] wiki pages** to discuss graphs in the [[http://addictedtor.free.fr/graphiques/|R Graph Gallery]]
  * **[[packages:packages|R packages]]** on [[http://cran.r-project.org|CRAN]] and [[http://www.bioconductor.org|Bioconductor]].
  * **Wiki version of the [[rdoc:rdoc|R functions help]] files** (all CRAN & Bioconductor)
  * ** [[http://bm2.genes.nig.ac.jp/RGM2/index.php|R Graphical Manual]]** has a gallery of all (over 18,000) graphs in the R documentations. 
    * Really simple guide to creating figures [[http://wiki.r-project.org/rwiki/doku.php?id=easy_figures | found here]]

++++

++++ R GUIs | 
  * **[[guis:guis|GUIs]]**: R graphical user interfaces
  * **[[guis:projects|GUIs]]**: Overview of gui projects
  * **[[guis:editors|Text editors]]**: Text editors for R
++++

++++ Users, Wiki, etc. | 
  * **[[users:users|Users]]**: pages for individuals users, or for discussing R-related events.
  * **[[developers:developers|Developers]]**: Wiki pages dedicated to various R developments.
  * **[[RUGs:R User Groups]]**: Listings of geographic or other R user groups.
  * **[[misc:misc|Anything that does not fit elsewhere]]**: [[misc:todo|Todo lists]], [[misc:wishlist|Wishlists]], [[misc:r_accuracy| R Accuracy]], etc.

  * **[[wiki:wiki|Wiki-related pages]]**: what is a Wiki? R Wiki authoring guide and syntax.
  * **[[playground:playground|Playground]]** to exercise writing Wiki pages.
++++