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Rafa Llopis

R You Ready for R? (1/2) - 0 views

www.nytimes.com/...07program.html

lenguaje R publicacion blog new york times

shared by Rafa Llopis on 29 Apr 13 - Cached
  • Data Analysts Captivated by R’s Power
    • Rafa Llopis
      Rafa Llopis on 29 Apr 13
       
      Artículo del New York Times que explica desde el principio las bases del lenguaje R y en qué se emplea.
  • used to set ad prices, find new drugs more quickly or fine-tune financial models
  • Google, Pfizer, Merck, Bank of America, the InterContinental Hotels Group and Shell use it.
  • ...17 more annotations...
  • R is also the name of a popular programming language used by a growing number of data analysts inside corporations and academia.
  • R is really important to the point that it’s hard to overvalue it,” said Daryl Pregibon
  • “It allows statisticians to do very intricate and complicated analyses without knowing the blood and guts of computing systems.”
  • R is similar to other programming languages, like C, Java and Perl
  • . I.B.M., Hewlett-Packard and Dell make billions of dollars a year selling servers that run the open-source Linux operating system
  • Web sites are displayed using an open-source application called Apache,
  • the end results of all this technology via the Firefox Web
  • can help illuminate data trends more clearly than is possible by entering information into rows and columns
  • What makes R so useful
  • is that statisticians, engineers and scientists can improve the software’s code or write variations for specific tasks
  • advanced algorithms, colored and textured graphs and mining techniques to dig deeper into databases.
  • Packages written for R add
  • the professors considered their coding efforts more of an academic game than anything else.
  • the notion of devising something like R sprang up during a hallway conversation.
  • They both wanted technology better suited for their statistics students
  • R immediately gained a following with people who saw the possibilities in customizing the free software.
  • “The diversity and excitement around what all of these people are doing is great,” Mr. Chambers said.
juan trinidad jimenez armesto

R, the Software, Finds Fans in Data Analysts - NYTimes.com - 0 views

www.nytimes.com/...07program.html

shared by juan trinidad jimenez armesto on 01 May 13 - No Cached
    • juan trinidad jimenez armesto
      juan trinidad jimenez armesto on 01 May 13
       
      Debido al aumento estos últimos años de la necesidad del data mining por el gran número de datos que manejas las empresas y la posibilidad de buscar patrones comunes, las grandes empresas empezaron a utilizar R como herramienta para ello.
    • juan trinidad jimenez armesto
      juan trinidad jimenez armesto on 01 May 13
       
      Además R es de código libre, como también lo son Apache o la bases de datos MySQL, haciendo que el proyecto se desarolle en comunidades de usuarios.
    • juan trinidad jimenez armesto
      juan trinidad jimenez armesto on 01 May 13
       
      Existen numerosos paquetes con funciones predefinidas por otros usuarios para facilitar la programación
  • ...11 more annotations...
  • Many people view the end results of all this technology via the Firefox Web browser, also open-source software.
  • R is also the name of a popular programming language used by a growing number of data analysts inside corporations and academia. It is becoming their lingua franca partly because data mining has entered a golden age
  • Companies as diverse as Google, Pfizer, Merck, Bank of America, the InterContinental Hotels Group and Shell use it.
  • R has also quickly found a following because statisticians, engineers and scientists without computer programming skills find it easy to use.
  • Many people view the end results of all this technology via the Firefox Web browser, also open-source software.
  • Most Web sites are displayed using an open-source application called Apache, and companies increasingly rely on the open-source MySQL database to store their critical information. Many people view the end results of all this technology via the Firefox Web browser, also open-source software.
  • For statisticians
  • R is particularly useful because it contains a number of built-in mechanisms for organizing data, running calculations on the information and creating graphical representations of data sets.
  • What makes R so useful
  • is that statisticians, engineers and scientists can improve the software’s code or write variations for specific tasks. Packages written for R add advanced algorithms, colored and textured graphs and mining techniques to dig deeper into databases.
  • The financial services community has demonstrated a particular affinity for R; dozens of packages exist for derivatives analysis alone.
Enrique Diaz Romero

A quick introduction to R - 0 views

www.mas.ncl.ac.uk/...R-intro.html

introduccion lenguaje programacion r recopilación

shared by Enrique Diaz Romero on 25 Jun 13 - No Cached
  • 'R' is a programming language for data analysis and statistics. It is free, and very widely used by professional statisticians
  • . It has many built-in functions and libraries, and is extensible, allowing users to define their own functions and procedures using R, C or Fortran
    • Enrique Diaz Romero
      Enrique Diaz Romero on 25 Jun 13
       
      Nos muestras, a R como un lenguaje de análisis y estadística usado por la comunidad profesional y que esta construido mediante funciones y librerías extensibles que pueden estar definidas mediante R, C o Fortran.
  • ...4 more annotations...
  • Vectors are a fundamental concept in R, as many functions operate on and return vectors,
    • Enrique Diaz Romero
      Enrique Diaz Romero on 25 Jun 13
       
      Considera los vectores como la forma fundamental de trabajo de R ya que estos representan un array de información y datos.
  • R has lots of great functions for producing publication quality plots
    • Enrique Diaz Romero
      Enrique Diaz Romero on 25 Jun 13
       
      R nos permite un gran numero de Gráficas de alta calidad con las que mostrar los datos adquiridos
  • R is a full programming language, and before long, you are likely to want to add your own functions
    • Enrique Diaz Romero
      Enrique Diaz Romero on 25 Jun 13
       
      Aunque R esta totalmente programado, siempre puedes añadir e utilizar funciones propias. Sin necesidad de crear una librería completa.
  • It is often also desirable to be able to output data from R in a format that can be read by other applications
    • Enrique Diaz Romero
      Enrique Diaz Romero on 25 Jun 13
       
      R nos ofrece un gran numero de funciones con las que exportar e importar datos desde otras aplicaciones.
  • Enrique Diaz Romero on 25 Jun 13
     
    Una rápida introducción a R, y al uso de numerosas funciones de este.
Joca Vijo

Big Data Right Now: Five Trendy Open Source Technologies | TechCrunch - 0 views

techcrunch.com/...rendy-open-source-technologies

shared by Joca Vijo on 22 Apr 13 - No Cached
    • Joca Vijo
      Joca Vijo on 22 Apr 13
       
      Aquí nos remarca que el lenguaje R es muy adecuado a la hora de desarrollar proyectos de 'Big Data', o con contenidos ingentes de información, separando y analizando las diversas publicaciones.
  • Because it has an unusually strong community around it, you can find R libraries for almost anything under the sun — making virtually any kind of data science capability accessible without new code. R is exciting because of who is working on it, and how much net-new innovation is happening on a daily basis. the R community is one of the most thrilling places to be in Big Data right now. R is a also wonderful way to future-proof your Big Data program. In the last few months, literally thousands of new features have been introduced, replete with publicly available knowledge bases for every analysis type you’d want to do as an organization.
David Moya

David riff moya - 0 views

heather.cs.ucdavis.edu/r.html

shared by David Moya on 24 Apr 13 - No Cached
    • David Moya
      David Moya on 24 Apr 13
       
      R se usa para estadisticas y dirección. Se usa en el ámbito de industrias, negocios, gobierno y medicina. Es gratuito y de open source, disponible para linux mac y windows.
  • There is a perception among some that R has a steep learning curve, but I disagree.
  • R usage has its advanced aspects
  • ...10 more annotations...
  • Start simple, and then refine gradually.
  • There are numerous gentle online tutorials on R
  • R syntax is similar to those of C, Python, PERL
    • David Moya
      David Moya on 24 Apr 13
       
      R es un lenguaje de programación similar a C, Python y PERL. Una herramienta muy util para escribir codigo en R es RStudio, creada en 2011
    • David Moya
      David Moya on 24 Apr 13
       
      Se dice que puede ser un lenguaje complicado, pero hay que tomarselo con calma e ir progresando poco a poco, hasta alcanzar un nivel mas alto. Además en internet se pueden encontrar numerosos tutoriales para aprender R
  • used widely in industry, business, government, medicine
  • R is a wonderful programming language for statistics and data management
  • free, an open source product
  • R is available for Linux, Windows and Mac systems.
  • there are a number of open source products available: The most popular is undoubtedly RStudio
Joan Bono

R, the Software, Finds Fans in Data Analysts - NYTimes.com - 0 views

www.nytimes.com/...07program.html

shared by Joan Bono on 23 Apr 13 - No Cached
    • Joan Bono
      Joan Bono on 23 Apr 13
       
      Interesante artículo a tener en cuenta
  • “R is really important to the point that it’s hard to overvalue
  • It allows statisticians to do very intricate and complicated analyses without knowing the blood and guts of computing systems.”
  • ...8 more annotations...
  • It is also free.
  • R is similar to other programming languages, like C, Java and Perl,
  • R is particularly useful because it contains a number of built-in mechanisms for organizing data, running calculations on the information and creating graphical representations of data sets
  • What makes R so useful
  • is that statisticians, engineers and scientists can improve the software’s code or write variations for specific tasks
  • “The great beauty of R is that you can modify it to do all sorts of things
  • “And you have a lot of prepackaged stuff that’s already available,
  • R first appeared in 1996,
corozo56

R Programming Language | ProgrammingR - 0 views

www.programmingr.com

shared by corozo56 on 23 Apr 13 - Cached
    • corozo56
      corozo56 on 23 Apr 13
       
      En este artículo se exponen las ventajas en el mercado laboral de la utilización del lenguaje de programacion R.
anonymous

R - About - 2 views

www.r-project.org/about.html

shared by anonymous on 23 Apr 13 - No Cached
    • Sébastien Sanchez
      Sébastien Sanchez on 25 Apr 13
       
      Introducción al lenguaje y entorno de programación R. Características y posibilidades de manejo, cálculo y gráficos.
  • Windows and MacOS
  • R is available as Free Software
  • ...9 more annotations...
  • It compiles and runs on a wide variety of UNIX
  • a suite of operators for calculations on arrays, in particular matrices
  • It includes
  • an effective data handling and storage facility
  • R is a language and environment for statistical computing and graphics
  • a large, coherent, integrated collection of intermediate tools for data analysis
  • graphical facilities for data analysis and display either on-screen or on hardcopy, and
  • a well-developed, simple and effective programming language which includes conditionals, loops, user-defined recursive functions and input and output facilities
    • anonymous
      anonymous on 29 Apr 13
       
      Caracteristicas del lenguaje R en las que destaca su facilidad para trabajar con gráficos y análisis de datos.
nerub val

Rcmdr.com - 0 views

www.rcommander.com

shared by nerub val on 24 Apr 13 - No Cached
  • R commander (Rcmdr)
  • R commander (Rcmdr)
  • R provides a powerful and comprehensive system for analysing data and when used in conjunction with the R-commander
  • ...5 more annotations...
  • it also provides one that is easy
  • The Rcmdr program enables analysts to access a selection of commonly-used R commands using a simple interface that should be familiar to most computer users
  • A number of plugins are available that provide direct access to R packages through the Rcmdr interface
  • There are currently 29 Plugins that provide support for specific analyses, graphics, books and teaching.
    • nerub val
      nerub val on 24 Apr 13
       
      Aqui hay una lista de enlaces de plugins que proporcionan acceso directo a los paquetes de R a traves del interfaz Rcmdr
  • nerub val on 24 Apr 13
     
    Conjunto R-Commander
grupo empresa

Why use R? | inside-R | A Community Site for R - 1 views

www.inside-r.org/why-use-r

community programming R

shared by grupo empresa on 24 Apr 13 - No Cached
    • grupo empresa
      grupo empresa on 24 Apr 13
       
      R dispone ya de una amplia comunidad de personas, grupos o entidades que disfrutan de sus grandes ventajas. Esto es una gran ventaja para el nuevo usuario, ya que dispone de una gran cantidad de información y recursos para su aprendizaje.
  • A robust, vibrant community. With thousands of contributors and more than two million users around the world, if you've got a question about R chances are, someone's answered it (or can). There's a wealth of community resources for R available on the Web, for help in just about every domain.
    • vest monje
      vest monje on 24 Apr 13
       
      El lenguaje R se presenta con gran cantidad de ventajas, entre ellas que es gratuito. También se destaca su utilidad a la hora de hacer gráficos con lo que ha conseguido aparecer en publicaciones de the New York Times o the Economist. Así se destaca su creciente importancia a nivel mundial.
  • ...1 more annotation...
    • practica5 empresas
      practica5 empresas on 29 Apr 13
       
      Nos explica por que usar R.
grupo empresa

'R' language bringing statistical analytics to the masses (Q&A) | Software, Interrupted... - 0 views

news.cnet.com/8301-13846_3-20006661-62.html

language programming R statistics

shared by grupo empresa on 24 Apr 13 - No Cached
    • grupo empresa
      grupo empresa on 24 Apr 13
       
      El lenguaje r nos permite realizar una gran cantidad de predicciones de mercado y económicas que nunca antes se habian podido sacar con otros lenguajes o métodos.Este lenguaje es utilizado para la realización de predicciones analíticas que ayudan a entender mejor el mercado , las costumbres y las tendencias de los consumidores...Este además es un lenguaje muy joven todavía, al cual se le puede llegar a sacar una gran potencial.
  • Predictive analytics is statistical modeling by any other name. It's used by statisticians and data analysts across all verticals as a means to better understand their organization, both internally and externally. It helps identify trends and patterns, arming CIOs and other enterprise decision makers with the best possible information with which to make their decisions. Predictive analytics has a proven track record in the business intelligence field. Wal-Mart, for one, has used predictive analytics to better understand the habits and tendencies of their customers.
  • : R is still relatively young and is only just now being recognized outside of academic circles. Its practically limitless statistical capabilities make it attractive to anybody doing data analysis, be they a statistics professor or a financial analyst
  • ...1 more annotation...
  • At this point, the future of predictive analytics is pointing directly to R, something we are calling the "perfect storm of predictive analytics."
teleco teleco

R Programming/Importing and exporting data - Wikibooks, open books for an open world - 0 views

en.wikibooks.org/...Importing_and_exporting_data

shared by teleco teleco on 24 Apr 13 - No Cached
  • Data can be stored in a large variety of formats. Each statistical package has its own format for data (xls for Microsoft Excel, dta for Stata, sas7bdat for SAS, ...). R can read almost all file formats. We present a method for each kind of file. If none of the following methods work, you can use a specific software for data conversion such as the free software OpenRefine or the commercial software Stat Transfer[1]. In any case, most statistical software can export data in a CSV (comma separated values) format and all of them can read CSV data. This is often the best solution to make data available to everyone.
    • teleco teleco
      teleco teleco on 24 Apr 13
       
      Este lenguaje es muy completo ya que nos permite importar y exportar datos desde diversas aplicaciones del ordenador
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.
nerub val

R - GNU Project - Free Software Foundation (FSF) - 1 views

www.gnu.org/r

shared by nerub val on 24 Apr 13 - No Cached
  • R is a language and environment for statistical computing and graphics.
  • developed at Bell Laboratories
  • R provides an Open Source route to participation in that activity.
  • ...21 more annotations...
  • R provides a wide variety of statistical
  • and graphical techniques,
  • R is an integrated suite
  • of software facilities for data manipulation
  • storage facility,
  • operators for calculations on arrays,
  • collection of intermediate tools for data analysis,
  • graphical facilities
  • simple and effective programming language
  • is designed around a true computer languag
  • R, like S
  • allows users to add additional functionalit
  • defining new functions
    • nerub val
      nerub val on 24 Apr 13
       
      r es un lenguaje creado por bell laboraties de codigo abierto
    • nerub val
      nerub val on 24 Apr 13
       
      caracteristicas del lenguaje , facil almacenamiento, ayudas en operaciones y graficas, y efectivo
  • For computationally-intensive tasks, C, C++ and Fortran code can be linked and called at run time
    • nerub val
      nerub val on 24 Apr 13
       
      compatible con c y c++
  • R can be found on http://cran.r-project.org, the master site of comprehensive R archive network, or at one of its mirrors.
    • nerub val
      nerub val on 24 Apr 13
       
      enlace para descargarlo para linux, mac y windows
    • nerub val
      nerub val on 24 Apr 13
       
      y algunos recursos adicionales
  • with an FAQ list, and an introduction to the language and how to use R for doing statistical analysis and graphics in PDF and other formats.
    • nerub val
      nerub val on 24 Apr 13
       
      tutorial de como usar r asi como diversos posibles problemas con el y su istalacion y soluciones
pajoje lololo

R (programming language) - Wikipedia, the free encyclopedia - 1 views

en.wikipedia.org/...R_(programming_language)

shared by pajoje lololo on 24 Apr 13 - Cached
    • David Moya
      David Moya on 24 Apr 13
       
      Anualmente se celebra un encuentro para los usuarios que utilizan el lenguaje R. Entre los últimos destinos en los que se han celebrado las reuniones, podemos destacar Rennes, Tennessee o Albacete.
  • R is an interpreted language; users typically access it through a command-line interpreter.
  • R supports matrix arithmetic
  • ...7 more annotations...
  • R's data structures include scalars, vectors, matrices, data frames (similar to tables in a relational database) and lists.
  • R's extensible object-system includes objects for (among others): regression models, time-series and geo-spatial coordinates.
  • Although mostly used by statisticians and other practitioners requiring an environment for statistical computation and software development, R can also operate as a general matrix calculation toolbox - with performance benchmarks comparable to GNU Octave or MATLAB.
  • "useR!" is the name given to the official annual gathering of R users.
  • Here is the list of useR! conference: useR! 2004, Vienna, Austria useR! 2006, Vienna, Austria useR! 2007, Ames, Iowa, USA useR! 2008, Dortmund, Germany useR! 2009, Rennes, France useR! 2010, Gaithersburg, Maryland, USA useR! 2011, Coventry, United Kingdom useR! 2012, Nashville, Tennessee, USA useR! 2013, Albacete, Spain
    • David Moya
      David Moya on 24 Apr 13
       
      R es un lenguaje basado en el uso de línea de comandos. Soporta matrices, escalares y vectores además de operar estadísticamente. Su cálculo en el ámbito de matrices es comparable a otros softwares como pueden ser Matlab o GNU Octave.
    • pajoje lololo
      pajoje lololo on 24 Apr 13
       
      Hemos elegido consultar la información general sobre R en la versión en inglés de Wikipedia, ya que nos parecía más completa y elaborada. En primer lugar se enumeran las capacidades principales de este lenguaje y algunos de sus principales usos. También se destaca el hecho de que es 'GNU project' y que está disponible bajo licencia GPL. A pesar de ser un lenguaje que utiliza la linea de comandos, se descaca que existen diversas interfaces gráficas para facilitar su uso. En un apartado posterior se enumeran algunas de las principales versiones de estas interfaces. http://en.wikipedia.org/wiki/R_(programming_language)#Graphical_user_interfaces Se destaca en varios de los apartados del artículo la enorme versatilidad y capacidad de adaptación a distintos campos que posee este lenguaje debido a la gran cantidad de paquetes y extensiones que soporta. También se indica que debido a su herencia del lenguaje S, está más dirigido a la programación orientada a objetos que la mayoria de lenguajes estadísticos. Finalmente se destaca el uso comercial que se le ha dado a este lenguaje, y encontramos ejemplos como el de Oracle y el de Revolution Analytics.
Sébastien Sanchez

http://cran.r-project.org/doc/contrib/Zhao_R_and_data_mining.pdf - 0 views

cran.r-project.org/...Zhao_R_and_data_mining.pdf

data mining R programming twitter

shared by Sébastien Sanchez on 25 Apr 13 - No Cached
    • Sébastien Sanchez
      Sébastien Sanchez on 25 Apr 13
       
      Extenso pdf dirigido a programadores con ejemplos y explicaciones sobre cómo aplicar data mining empleando el lenguaje de programación R.
Sébastien Sanchez

CRAN Task View: Empirical Finance - 0 views

cran.r-project.org/...Finance.html

finance R programming

shared by Sébastien Sanchez on 25 Apr 13 - Cached
    • Sébastien Sanchez
      Sébastien Sanchez on 25 Apr 13
       
      Algunos comandos de programación R orientados a empresas. Lista de paquetes en R útiles para el trabajo empírico en las finanzas.
  • This CRAN Task View contains a list of packages useful for empirical work in Finance, grouped by topic
  • very wide variety of functions suitable for empirical work in Finance
Alpha Teleco

A big list of the things R can do | (R news & tutorials) - 1 views

www.r-bloggers.com/ig-list-of-the-things-r-can-do

shared by Alpha Teleco on 29 Apr 13 - No Cached
    • Alpha Teleco
      Alpha Teleco on 29 Apr 13
       
      Listado de las diferentes funciones que R puede realizar
  • R is an incredibly comprehensive statistics package
  • R can do pretty much everything you need for data manipulation, visualization, and statistical analysis.
  • ...8 more annotations...
    • Alpha Teleco
      Alpha Teleco on 29 Apr 13
       
      Simulación de procesos matemáticos y estadísticos
  • ANALYTICS
    • Alpha Teleco
      Alpha Teleco on 29 Apr 13
       
      Realización de gráficos estadísticos
  • GRAPHICS AND VISUALIZATION
  • R APPLICATIONS and EXTENSIONS***
    • Alpha Teleco
      Alpha Teleco on 29 Apr 13
       
      Aplicación de la estadística a la investigación
  • PROGRAMMING LANGUAGE FEATURES
    • Alpha Teleco
      Alpha Teleco on 29 Apr 13
       
      Programación orientada a objetos
Antonio Legaz

Data Mining Algorithms In R - Wikibooks, open books for an open world - 0 views

en.wikibooks.org/...Data_Mining_Algorithms_In_R

shared by Antonio Legaz on 30 Apr 13 - Cached
    • Antonio Legaz
      Antonio Legaz on 30 Apr 13
       
      El Data Mining consiste en una serie de algoritmos que mediante el procesamiento de gran cantidad de datos o datasets descubre una serie de patrones en estos.
    • Antonio Legaz
      Antonio Legaz on 30 Apr 13
       
      El lenguaje R nos sirve para aplicar la técnica del Data Mining a estos datasets facilitando la tarea y permitiendo obtener patrones que serían imposibles de observar sin la ayuda de ordenadores.  Existen además otros lenguajes, no obstante la característica que destaca de R sobre el resto es que se trata de un lenguaje con licencia libre y es accesible a cualquier empresa, sea cual sea su tamaño. 
  • The choice of the R project as the computational platform associated with this Wikibook stems from its popularity (and thus critical mass), ease of programming, good performance, and an increasing use in several fields, such as bioinformatics and finances, among others.
Paco Hormigo

Investigan la aplicación del lenguaje natural en software de gestión de negoc... - 0 views

www.agenciasinc.es/...software-de-gestion-de-negocio

programming language

shared by Paco Hormigo on 30 Apr 13 - No Cached
  • Paco Hormigo on 30 Apr 13
     
    El proyecto, en el que participan el grupo de investigación NIL del Instituto de Tecnología del Conocimiento de la UCM y la empresa Delta-R, especializada en tecnología de gestión de reglas de negocio (BRMS, o Business Rules Management Systems), pretende acercar a los usuarios menos expertos las plataformas de software de gestión a través de la implementación del lenguaje natural (R) Se observa la importancia de R en la organizacion empresarial.
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