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nerub val

R FAQ - 0 views

www.ci.tuwien.ac.at/...R-FAQ.html

rise

shared by nerub val on 24 Apr 13 - Cached
  • The “Comprehensive R Archive Network” (CRAN) is a collection of sites which carry identical material, consisting of the R distribution(s), the contributed extensions, documentation for R, and binaries
  • he CRAN master site at TU Wien, Austria, can be found at the URL http://cran.R-project.org/ Daily mirrors are available at URLs including
  • R is a system for statistical computation and graphics
  • ...27 more annotations...
  • s very similar in appearance to S, the underlying implementation and semantics are derived from Scheme
  • antics are derive
  • mantics are derived
  • It is possible for the user to interface to procedures written in the C, C++, or FORTRAN languages for efficiency.
  • R was initially written by Ross Ihaka and Robert Gentleman
  • Since mid-1997 there has been a core group (the “R Core Team”) who can modify the R source code archive. The group currently consists of Doug Bates, John Chambers, Peter Dalgaard, Robert Gentleman, Kurt Hornik, Stefano Iacus, Ross Ihaka, Friedrich Leisch, Thomas Lumley, Martin Maechler, Duncan Murdoch, Paul Murrell, Martyn Plummer, Brian Ripley, Duncan Temple Lang, Luke Tierney, and Simon Urbanek.
  • R is being developed for the Unix, Windows and Mac
    • nerub val
      nerub val on 24 Apr 13
       
      funciona en mac windows y unix
    • nerub val
      nerub val on 24 Apr 13
       
      creadores del lenguaje c
    • nerub val
      nerub val on 24 Apr 13
       
      colaboradores en el desarrollo asta 1997
  • Sources, binaries and documentation for R can be obtained via CRAN, the “Comprehensive R Archive Network” (see What is CRAN?)
  • How can R be installed (Macintosh) Next: How can R be installed (Windows), Previous: How can R be installed?, Up: How can R be installed?
    • nerub val
      nerub val on 24 Apr 13
       
      como instalarlo en linux windows y mac
  • Printed copies of the R reference manual for some version(s) are available from Network Theory Ltd, at http://www.network-theory.co.uk/R/base/. For each set of manuals sold, the publisher donates USD 10 to the R Foundation (see What is the R Foundation?).
    • nerub val
      nerub val on 24 Apr 13
       
      manual de referencia de r
    • nerub val
      nerub val on 24 Apr 13
       
      publicado en papel
  • The R distribution also comes with the following manuals. “An Introduction to R” (R-intro) includes information on data types, programming elements, statistical modeling and graphics. This document is based on the “Notes on S-Plus” by Bill Venables and David Smith. “Writing R Extensions” (R-exts) currently describes the process of creating R add-on packages, writing R documentation, R's system and foreign language interfaces, and the R API. “R Data Import/Export” (R-data) is a guide to importing and exporting data to and from R. “The R Language Definition” (R-lang), a first version of the “Kernighan & Ritchie of R”, explains evaluation, parsing, object oriented programming, computing on the language, and so forth. “R Installation and Administration” (R-admin).
    • nerub val
      nerub val on 24 Apr 13
       
      servidores desde conde descargar diferentes paquetes de r
  • It is the opinion of the R Core Team that one can use R for commercial purposes (e.g., in business or in consulting). The GPL, like all Open Source licenses, permits all and any use of the package. It only restricts distribution of R or of other programs containing code from R. This is made clear in clause 6 (“No Discrimination Against Fields of Endeavor”) of the Open Source Definition:
    • nerub val
      nerub val on 24 Apr 13
       
      r es de libre uso, solo esta restringida su distrubucion.
  • The name is partly based on the (first) names of the first two R authors (Robert Gentleman and Ross Ihaka),
    • nerub val
      nerub val on 24 Apr 13
       
      razon del nombre
  • 3.3.1 Lexical scoping
    • nerub val
      nerub val on 24 Apr 13
       
      a partir de aqui hay especificaciones tecnicas del lexico de r
  • Web Interfaces
    • nerub val
      nerub val on 24 Apr 13
       
      proyectos relacionados con r
  • 5.1 Which add-on packages exist for R?
    • nerub val
      nerub val on 24 Apr 13
       
      a partir de aqui estan muchos de los paquetes y que contienen para r.
Raúl Sarrión

R Language Definition - 1 views

cran.r-project.org/...R-lang.html

language definition R programming

shared by Raúl Sarrión on 22 Apr 13 - No Cached
  • R is a system for statistical computation and graphics. It provides, among other things, a programming language, high level graphics, interfaces to other languages and debugging facilities.
  • The R language is a dialect of S which was designed in the 1980s
  • Its principal designer,
  • ...11 more annotations...
  • was awarded the 1998 ACM Software Systems Award for S.
  • The language syntax has a superficial similarity with C, but the semantics are
  • variety with stronger affinities with Lisp and APL.
  • It is possible to get quite far using R interactively, executing simple expressions from the command line.
  • Some users may never need to go beyond that level
  • The design of the language contains a number of fine points and common pitfalls which may surprise the user.
  • In some cases, there are multiple ways of performing a task, but some of the techniques will rely on the language implementation, and others work at a higher level of abstraction. In such cases we shall indicate the preferred usage.
  • R does not provide direct access to the computer's memory but rather provides a number of specialized data structures we will refer to as objects.
  • In R, however, the symbols are themselves objects and can be manipulated in the same way as any other object. This is different from many other languages and has wide ranging effects.
  • This is an introduction to the R language, explaining evaluation, parsing, object oriented programming, computing on the language, and so forth.
    • Raúl Sarrión
      Raúl Sarrión on 22 Apr 13
       
      En esta pagina se entiende el lenguaje R como un dialecto de S. Este lenguaje R sirve tanto para programacion, como para crear graficas de alto nivel de dificultad... Tambien nos da una breve explicacion sobre algunos de los comandos usados para R tanto como parte de la gramatica del lenguaje mismo.
    • Raúl Sarrión
      Raúl Sarrión on 22 Apr 13
       
      hola
  • Raúl Sarrión on 22 Apr 13
     
    Una explicación mas extensa sobre el lenguaje R
Antoino Martinez Vila

Preguntas Frecuentes sobre el lenguaje R - 1 views

cran.r-project.org/...R-FAQ.html

tags R lenguaje preguntas frecuentes

shared by Antoino Martinez Vila on 24 Apr 13 - Cached
    • Antoino Martinez Vila
      Antoino Martinez Vila on 24 Apr 13
       
      Preguntas Frecuentes acerca del lenguaje de programacion R.
  • Can I use R for commercial purposes?
  • R is released under the GNU General Public License (GPL) version 2. If you have any questions regarding the legality of using R in any particular situation you should bring it up with your legal counsel. We are in no position to offer legal advice. It is the opinion of the R Core Team that one can use R for commercial purposes (e.g., in business or in consulting). The GPL, like all Open Source licenses, permits all and any use of the package. It only restricts distribution of R or of other programs containing code from R. This is made clear in clause 6 (“No Discrimination Against Fields of Endeavor”) of the Open Source Definition:
  • ...2 more annotations...
  • Why is R named R?
  • The name is partly based on the (first) names of the first two R authors (Robert Gentleman and Ross Ihaka), and partly a play on the name of the Bell Labs language `S'
  • Antoino Martinez Vila on 24 Apr 13
     
    Este documento contiene respuestas a algunas de las preguntas más frecuentes acerca de R.
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